SCIENCE INVESTIGATORY PROJECTS Gallery of Muntinlupa National High School :)

Anthracnose Inhibiting Activity of Madre de Cacao (Gliricidia sepium) Leaf Extract on Post – harvest Tomato (Solanum lycopersicum)

2016-03-08T00:52:00.001-08:00

Researchers: Tupas, Frederick King M., Forastero, Nicolette, Armas Alexia Marie L.,

Lebrias, Maria Teddielyn Bernadette, and Posada, Elijah Rafael

Research Adviser: Mrs. Ma. Regaele A. Olarte

Introduction

Anthracnose is a common and serious disease of plants in tropical region and humid areas. It is a fungus that causes heavy and deep damage to tomatoes making it easy to rot. Growth of Anthracnose (C. Coccodes) is most rapid at 80° F, although the fungus can cause infections over a wide range of temperatures (55°-95° F). Wet weather promotes disease development, and splashing water in the form of rain or overhead irrigation favors the spread of the disease. Colonies as observed by the researchers are usually dark pigmented with white aerial vegetative part of a fungus which is called mycelium. Consisting of numerous black compact mass of hardened fungal mycelium containing food reserves (sclerotia) and light brown colored conidial masses, reverse is a dark brown conidial masses. It is also a result in wide range of symptoms like leaf spots, defoliation and distortion in many different kinds of plants. One of the plants that is affected by this kind of fungi are tomatoes.

The researchers have come up with the idea of using Madre de Cacao (Gliricidia sepium) leaf extract on post-harvest Tomatoes (Solanum lycopersicum). The study ascertained that the medicarpin content of the said plant is an effective treatment for fungi. Since Gliricidia has already proven its power on fungal infections, the researchers conducted several experimentation and trials to figure out its effectiveness; with this, Anthracnose can now be prevented and cured without the help of commercially known anti-fungal treatment.

Mucus from Brown Garden Snail (Helix aspersa) as Desiccating Agent to Absorb Moisture

2016-03-08T00:45:00.001-08:00

Researchers:

Ivy Lane Erguiza, Priscila Aguila, Janine Sabado, Honey Balbastro

Research Adviser:

MRS. MA. REGAELE A. OLARTE

3rd Place DepEd Regional Science Fair 2014
3rd Place National Science and Youth Congress 2014
4th Runner Up National Science Quest 2015

ABSTRACT
Among the reasons for food shortage in the country are pest infestation in crops and
damages in the shipping of goods. Upon seeking ways to exterminate these unwanted
factors, the researcher came up with the idea of targeting these two problems. The
researcher investigated the hygroscopic property of Brown Garden Snail (Helix aspersa)
slime and converted it into a very useful product.
The organic desiccant was derived from the extraction of slime obtained from the body
secretions of the snail. The following experimental set-ups had been made: 5.6 grams wet
slime and 1.6 grams wet filter paper; 5.6 grams dry slime and 1.6 grams wet filter paper.
For the control set-up, 5.6 grams commercial desiccant and 1.6 grams wet filter paper
were used as positive control; 1.6 grams wet filter paper without treatment was used as
the negative control.
One-way Analysis of Variance (ANOVA) for independent groups showed that there was an
overall significant difference among the group means, at P <.0001. The results of post-hoc
Tukey's HSD tests showed that all points of comparison were significant, P<.01. The study
proved that the organic desiccant obtained from Snail (Helix aspersa) slime could be
effective moisture absorbent, especially the wet mucus.

KEYWORDS

Snail; desiccant; Helix aspersa; hygroscopic property

Research Mentors: AMANDA PEREZ, JEATRICE LOPEZ, ROSELLE GALVEZ

Wound Healing Effect of Ashitaba (Angelica keiskei) Extract on Albino Mice

2016-03-08T00:37:00.003-08:00

Bryant ALTERADO, Reggie BAGATELA, Elijah Jeremie SORIANO

S.Y. 2014-2015

ABSTRACT

Due to the high cost of the commercial medicines, people are incited to discover and seek for an alternative way to cure particular ailments by the utilization of medicinal plants. People in rural places and those who cannot afford to buy expensive topical treatment for skin diseases need to discover what nature can offer as alternative medication. Ashitaba (Angelica keiskei) is a plant that is abundant in many regions of Asia. It was first used in Japan as herbal tea for treatment of different diseases, and it multiplied rapidly, particularly in the Philippines. Subsequently, the researchers studied the beneficial uses of the Ashitaba (Angelica keiskei) leaves, specifically its capability to treat wounds.

A total of four sets of experiments are prepared. Three (3) mice per four (4) different kinds of set-ups. Pure Ashitaba (Angelica keiskei) extract and decocted Ashitaba (Angelicakeiskei) extract served as the experimental set-ups. Betadine (Povidone-iodine) and the untreated set-up served as the control set-ups.

The results of the experiment revealed that among all the treatments, 100% Angelica keiskei pure extract had the highest rate of wound healing in albino mice. Next were the Povidone-iodine and the decocted extract of Angelica keiskei, which were at the same level of efficiency. Statistical analysis showed that there’s no significant difference between the experimental set-ups (Ashitaba leaf and stem pure extract, and decocted extract) and the control set-up (Povidone-iodine) in terms of wound healing rate.

Utilization of Aratilis (Muntingiacalabura) as Feedstock for Bioethanol

2016-03-08T00:31:00.002-08:00

Macasinag, John Paulo H.; Joson, Jonas S.; Pante, Jonel B.

Magpale, Vincent; Ybalez, Kent Nehemiah

Research Adviser: Mrs. Ma. Regaele A. Olarte

CHAMPION - National Science and Youth Congress

Youth Greenovation 2014 - Applied Science Category

University of the Philippines, Los Banos

INTRODUCTION

Production of green energy from indigenous materials has played an essential role in recent days due to the depletion of non-renewable energy resources. Viable alternative sources of energy have long been searched for in the midst of the increasing demand of for fossil fuels. People are already upset by the high fuel prices, and in reality they are likely to go much higher in the future. Thus, an alternative fuel source such as bioethanol can save the consumption and dependency on fuel wood.

Aritilis (Muntingiacalabura)is a fruit-bearing tree that is abundant in many regions of the Philippines, and because of its plentiful growth, it is sometimes considered as nuisance whenever it produces too much waste on the ground where it falls off. This made the researchers decide to use aratilis fruit as the main material in producing bioethanol considering that it is rich in starch that is convertible to sugar, which is then processed to become bioethanol.

Background of the Study

Bioethanol is a renewable fuel source. It is produced from plants that process and store energy from the sun. In a sustainable cropping system, plant feedstock could be produced year after year. Regions of the world that were without crude oil deposits could consider fuel farming as a long term solution to offset their energy needs and foreign oil dependency.

Bioethanol can be made from common crops such as sugar cane, sweet sorghum, and the like; unlike petroleum which is produced from agricultural feedstock. It burns more clearly and produces very little amount of carbon monoxide which can help in reducing pollution in our country. It is also renewable, making it more practical and affordable.

Aratilis fruit is a starchy substrate which can be utilized for the production of green energy, bio-ethanol.Ethanol from starch is generally produced by the fermentation process.In order to produce ethanol from starchy material, the starch must first be converted into sugars.

The Exterminating Effect of Cane Toad (Bufo marinus) Bufotoxin Crude Extract against Rice Black Bug (Scotinophara coarctata)

2016-03-08T00:17:00.000-08:00

Researchers:

Bermejo, Aldin M.

Montante, Samboy Jim B.

Peneyra, Rona Moneth M.

Venus Angeline Baldonaza

Shanelli Deviterbo

Research Adviser:

Ma. Regaele A. Olarte

1st Place Winning Entry in the Divison, Regional, and National Levels

Candidate to the INTERNATIONAL Delegation Team for ISEF 2012-2013

Abstract

One of the reasons for rice shortage in the country is pest infestation, specifically, by Rice Black Bug. The researchers were challenged to come up with another method of combating Rice Black Bugs in the rice field, without altering the balance of nature. Upon seeking ways to exterminate these unwanted pests, the researchers investigated the exterminating property of Cane Toad (Bufo marinus) crude extract against Rice Black Bug. The pesticide was derived from the extraction of the 22.5 grams of crude extract. The following experimental set-ups had been made: 30% crude extract and 70% corn oil solution (0.3 grams of crude extract and 0.7grams corn oil solution); 50% crude extract and 50% corn oil solution (0.5 grams of crude extract and 0.5 grams corn oil solution); 70% crude extract and 30% corn oil solution (0.7 grams of crude extract and 0.3 grams corn oil solution.); and 100% crude extract (1 gram of crude extract). Using the different concentrations, the effectiveness was tested to the Rice Black Bug (Scotinophara coarctata), in terms of mortality rate. T- test showed that there was no significant difference between the experimental product and the commercial bug killer in terms of the pest’s mortality rate, at 0.05 level of significance. The results of experimentation and data analysis showed that the experimental product was just as effective as the commercial bug killer in eradicating pests. Thus, the organic pesticide obtained from Cane Toad (Bufo marinus) crude extract could be an alternative to the commercial bug killer.

A TRIBUTE TO MARK LORENZ VALDEZ

2012-12-26T02:14:00.002-08:00

Mark Lorenz Valdez (R.I.P. 2012)

Muntinlupa National High School's

"RESEARCHER OF THE YEAR 2009"

Project:

Talahib (Saccharum spontaneum) as an Effective Main Component of Biodegradable Plastic

( 4th Place REGIONAL DepEd-Intel Science Fair, S.Y. 2009-2010)

Multi-Colored Fabric Dye From Talisay (Terminalia catappa) Leaves Extract

2011-10-07T01:21:00.000-07:00

Pauline Mariz Manuel

Marjorie Marmeto

Jiezel Ann Sescar

Mrs. Ma. Regaele Olarte (Research Adviser)

Statement of the Problem

The researchers aimed to determine if the Talisay (Terminalia catappa) leaves extract could be developed as a multi-colored fabric dye.

Specifically, the study sought to answer the following questions:

1. Can Talisay (Terminalia catappa) leaves extract be developed as a multi-colored dye?

2. Is there a significant difference between the experimental and control set-ups in terms of:

a. Reaction to acid

b. Reaction to base

c. pH level

d. Color fastness

Table 1

Frequency Distribution of Yielded Results

in terms of Color

DYE	FREQUENCY	PERCENTAGE (%)
Violet	97	93
Yellow	7	7
Brown	3	3
TOTAL	100	100

Table 2

Comparison of Mean and T-test Result for

Talisay and Commercial Fabric Dye

TALISAY LEAVES		COMMERCIAL DYE		VARIANCE
COLOR	FREQUENCY	COLOR	FREQUENCY	VARIANCE
Violet	90	Violet	88	2%
Yellow	7	Yellow	10	3%
Brown	3	Brown	2	1%
TOTAL	100		100

Akapulko (Cassia alata L.) Seeds as Purgative Extender for Pulvoron

2011-10-06T23:44:00.000-07:00

Akapulvoron: A Sensory Analysis

Akapulko (Cassia alata L.) Seeds as Purgative Extender for Pulvoron

Karl Ericson Landrito

Rochelle Gel Asilo

Ludy Anne Castrence

Maegan Morales

Keith Louise R. Salazar

Research Adviser:

Mrs. Ma. Regaele A. Olarte

A. Background of the Study

Children during their early stage of learning are curious on how things around them work. They always want to play outdoor games such as tumbang preso, patintero, piko, jolens, pogs, and many other games with their playmates. These games require touching and a lot of barefoot running. Children do not tend to know that running barefooted will cause the formation of ascaris and other parasitic worms that might infect their intestines. Malnutrition surrounds our country today; a lot of people, most especially the children, were the victims of it. One of the most common causes of malnutrition of children is worm infestation.

Worm infestation can result if there happened to be a direct or indirect contact with the feces of an infected person. It can be dispersed when the feces of an infected organism are used as fertilizers in farmlands that are now converted into urban type of community. The kids that are living in that converted area can accumulate the infection that the former farmland has.

Children that are infected can have parasitic worms inside their bodies. They can eventually experience malnutrition and other health deficiencies if not treated. Purgative medicines are cheap in cost but children dislike the taste because of its bitterness. The researchers came up with this project due to the desire of helping the parents of infected children in convincing their kids to take good-tasting purgative remedy that is cheaper in cost and can be done at home. The researchers found out that pounded and boiled akapulko seeds are used as an effective purgative agent. Akapulko is an herbal plant that can be used in curing skin, stomach, lung, and mouth problems, and is well known for its sudorific, diuretic and purgative characteristics. It can be ingested without having any side effect or contraindications. The researchers thought of pulvoron, being a healthy, delicious, and attractive treat for all. The akapulko seeds were consider as extender in place of the traditional rice crisps, nuts, or nougats in the pulvoron. Established that akapulvoron could be an effective and safe purgative treat, the researchers intended to conduct a sensory analysis of the product to determine if it would be generally accepted by the public.

Makahiya (Mimosa pudica) Root Extract as an Alternative Ovicide against Dengue Mosquito (Aedes aegypti) Eggs

2011-10-05T02:26:00.000-07:00

Dumayas, Diana Rose P.

Geroche, Sheila Mae T.

Pinote, Lorraine Angela D.

(Researchers)

Mrs. Ma. Regaele A. Olarte

(Research Adviser)

Significance of the Study

The augmenting number of Dengue cases not only in our country but also to other countries all over the world experiencing the abnormal change in weather is not of recent origin to us. Along with this difficult situation, there are two-winged, dipterous insects that hatch their eggs for a short time, reducing the size of their larvae and become “nervous-biters”. In that case, they are harder to intercept in flight that is why it is more advisable to focus on the places where they lay their eggs.

The researchers conducted this study in order to lessen the proliferation of mosquitoes or prevent the eggs from hatching using the Makahiya Mimosa pudica roots extract as an ovicide. As the experiment was proven to be effective, it is relevant to propagate the plant for mass production and communicate the results to other people. It is also significant to conduct experiments about the other potentialities of the said plant, such as the anti fertility property of its root extract which was proven in Albino white mice sperm cells according to Dr. Godofredo Umali-Stuart of University of Santo Tomas.

Prototype Biometric Security System on Personal Computer Using Fingerprint-based Power Switch

2011-10-05T01:04:00.000-07:00

Researcher: Maycee Anne Rufino

Research Adviser: Mrs. Ma. Regaele Olarte

Statement of the Problem

The study sought to devise a system to protect every computer from hacking and unwanted file sharing due to usage without permission by unauthorized users. The researcher utilized fingerprint-based biometric security system on the power switch of personal computer, thus making it unquestionably “personal.”

Specifically, the study aimed to answer the following questions:

1. How should the system be designed and developed in order to:

a. Secure the user’s data from hacking or sharing,

b. Provide an account security for the computer user,

c. Ensure that the system is protected against alteration and not prone to errors?

2. What is the level of performance of the system based on the following criteria:

a. Reliability

b. Accessibility

c. Efficiency

d. Functionality?

Hypothesis

The fingerprint-based biometric security system on personal computer with remote access for the private user is effective in terms of the specified criteria.

Scope and Limitations

The fingerprint-based biometric security system on personal computer is more accessible, secured, accountable and accurate. It is in the registered fingerprint where an account is created for hassle-free admission to the system. Furthermore, transactions do not consume much time and effort since the information needed to connect and to access one’s account is already automated.

The following were the scope and limitations of the study:

The study only focused on the general transaction of database and of safe-keeping for the data-security of personal computers.
This mechanism was not advisable for shared computers but merely for personal use, as only an authorized person could gain access on the most important data and information stored in the computer.
The system would not operate if the user is unauthorized or unregistered. Only authorized user with registered thumb mark and password can get into the system.
This device can register and hold up to five authorized users only to access the system.
The fingerprint-based power switch can also be used on any technology containing switch. (e.g. lighting, appliances, motorcycles etc.)

Environmental Briquette from Water Hyacinth (Eichhornia crassipes) with Acacia Seeds as Binding Agent

2011-10-04T00:52:00.000-07:00

Mary Jane Bucio

Patricia Anne Javier

Charlz Deanne Hermoso

Angel-lyn Lazo

Jamira Marabut

(Researchers)

Mrs. Ma. Regaele A. Olarte

(Research Adviser)

ABSTRACT

Water hyacinth is an aquatic plant which could well be used, instead of wood, in generating an alternative source of energy. The processing of water hyacinth into briquette would have a significant role not only in the development of an alternative fuel, but also in the preservation of the environment. The water hyacinth that was harvested, dried, and pulverized was mixed with cassava starch and acacia seed binder by being compressed into briquettes in a manually-operated machine. The experimental set-up made use of dry and fresh water hyacinth while a traditional charcoal served as the control. In all the quality tests done, T- test showed that there was no significant difference between the experimental product and the commercial product in terms of various parameters, at 0.05 level of significance. The results of experimentation and data analysis showed that the experimental product is just as effective as the commercial briquette, with better potential of helping the environment by reducing the negative consequences brought about by water hyacinth’s rapid profusion. Thus, the environmental briquette made from water hyacinth with acacia seeds as binding agent could be an effective alternative to the traditional charcoal made from burning of wood.

The Antagonistic Effect of American Cockroach (Periplaneta americana) on Escherichia Coli

2011-10-03T02:57:00.000-07:00

Jeanne Mariel Odoño

Micah Salgon

Patricia Nicole Sarte

Research Adviser: Mrs. Ma. Regaele A. Olarte

Abstract

There is a necessity for a new alternative raw material in the production of antibiotics. The researchers conducted the study to contribute to the prevention and cure of Escherichia Coli, in relation to its outbreak in Germany. The outbreak had a great impact in the increasing number of patients in diarrhea and kidney failure in the said country. The study was conducted to prove if American Cockroach (Periplaneta Americana) has an ideal antimicrobial effect to the increasing number of Escherichia Coli taken from their great immune system against different bacteria located in their habitat. This project proved that American Cockroach (Periplaneta Americana) could be useful in producing antibiotics against Escherichia Coli.

The Design and Construction of an Improved Water Purifying Apparatus

2011-10-03T02:20:00.000-07:00

Bautista, Arianne Grace B.

Bentor, Merry Ruth M.

Bonzo, Jeric M.

Rayos, Queenie M.

Uayan, Althea Desiree C.

(Researchers)

Mrs. Ma.Regaele A. Olarte

(Research Adviser)

Methodology (Documentation)

Construction of the Apparatus

Collection of Water Samples

Water Quality Testing

The General Acceptability of Orange-Flavored Candy with Ikmo (Piper betel) Leaf Extract

2011-03-25T08:43:00.000-07:00

Researchers:

Argana, John Patrick F.

De Villa, Jess Nino H.

Guico, Melwin M.

Cruz, Clairezelle Maclaine I.

Regulano, Jean Paula B.

Research Adviser: Mrs. Ma. Regaele A. Olarte

Methods

A. Preparation of Materials

The researchers gathered Ikmo (Piper betel) leaves. The leaves, instead of drying them, were used fresh so as to maintain the nutrients and essence. Ultra-violet rays from the sun and moisture from dew and frost can tarnish and severely lessen the quality of many herbs. Thus, it was best to use freshly picked leaves and be processed instantaneously. The leaves were treated cautiously to avoid letting their juices before conducting the extraction. For proper sanitation, all the materials used in handling the gathered leaves were sterilized before use.

B. Processing of the Ikmo leaves

The leaves that were chosen had soft structure. After collecting the leaves, the researchers rinsed the fresh herbs very lightly and briefly in distilled water, avoiding shaking. Blotting was also avoided; instead, they were allowed to just naturally dry. The researchers used 50 pieces of fresh Ikmo leaves and pounded them using the mortar and pestle.

C. Testing and Quality Scoring

The researchers applied the principles of quality scoring as it was found to be very functional in product improvement and in quality control and storage studies. In preparing the score sheets, the code number assignment is the sample following the succession of code ordered arrangement was copied. The scoring consisted of rating the properties of the sample on the properly defined scale that best described the intensity of the taste of the candy. A numerical value for each descriptive term on the scale was also assigned so that the data could be analyzed statistically. The quality attribute analyzed was listed and arranged on the score sheet in the order they were normally perceived by the judges. A master sheet that contained all the necessary information about the test was prepared. The researchers referred to the table of numbers for the code assignments of each sample per judge. The order of presentation of samples for each judge was determined the sample were prepared and labeled A, B, and C. Three-digit numbers were assigned to each sample to serve to each in order. The codes stood for commercial orange-flavoured candy, orange-flavoured candy with Ikmo leaves extract and candy with Ikmo leaves extract without any flavour, respectively.

The samples were arranged on a tray according to the order of serving. The order had to tally with the score sheet and master sheet. The score sheet was also placed on the tray. A glass of drinking water was also provided for each judge to neutralize the taste after testing each sample. The results were then decoded. The appropriate numerical value of the scale that reflected the judge’s evaluation on the intensity of each quality attribute was written opposite the code number.

Sensory Attributes and General Acceptability of Okra (Abelmoschus esculentus) Seed Herbal Tea

2011-03-20T06:25:00.000-07:00

Researchers:

de Manuel, Joann

Estandarte, Alyssa Jerrene

Ma, Sharinah Mae

Natividad, Hannah

Reyes, Ma. Angelica

Research Adviser:

Ma. Regaele A. Olarte

Scope and Limitations

The study covered the sensory attributes and general acceptability of the prepared herbal tea from okra (Abelmoscus esculentus) seed. The only part of the okra that was studied was its seed. The seed from matured and young seed were used in the preparation of okra seed tea. A known commercial tea (Lipton_TM) that was bought from the market served as the control. Instead of extracting, canning, or bottling, the okra seed tea was presented in sealed tea bags. The sensory characteristics that were evaluated include color, sweetness, flavor, and general acceptability. In testing the flavor, the original essence of okra seed herbal tea was tested. Then, pandan flavoring was used sparingly (one drop per 15 mL) to enhance the effect without masking the original flavor of the okra seed. The overall or general acceptability of the tea was also considered. This study used human subjects only as respondents for the quality scoring but not as instruments to test the medical properties of the okra seed. The venue where human subjects were used was in Bliss, Muntinlupa. The respondents were asked to sign their informed consent forms as they voluntarily performed the sensory tests.

The restriction of this study was the inability of the researchers to conduct survey using people above 18 years old. Pregnant women and children were also not allowed to be used as subjects. The duration of the complete study was from August 25, 2010 to January 29, 2011.

The Anti-fungal Activity of Sesame Seed (Sesamum indicum L.) in White Bread

2011-03-19T02:40:00.000-07:00

Researchers:
Shenna Marie Sonio
Pete Wendell Mangmang
Angela Gener
Dhalia Cielo
Pauline Marie Siazon
Research Adviser: Ma. Regaele A. Olarte

Background of the Study

Molds are problems in bread production. Bread molds maybe dealt by using various ways. Adding something on bread that prevents the growth of molds can be done by the baker; it involves either managing the pastries or managing the fungi. The method of managing the fungi in bakery bread includes various physical and mechanical operations, the encouragement of the use of additives, and the use of sesame seeds. Most likely, a baker often resorts to the use of unsafe ingredients that can have an extra effect on the consumers. However, the use of this can cause harmful effect on human beings. Consequently, the fungi on the bread proliferate and become difficult to control. Until now, the use of harmful additive remains as man’s control measure against bread molds. The environmental and health hazards brought about by the indiscriminate use of harmful additive to improve production have caused unprecedented health hazards to the populace. The World Health Organization (WHO) reported thousands of death that occur in developing countries every year due to food poisoning.Utilization of organic resources as means of eradicating bread molds has been viewed as very promising and advantageous in terms of cost, practicality and availability. It is of great advantage that the search for natural resources of killing bread molds be made. Our market is rich in natural seed products and dried goods such as Sesamun indicum L, also known as sesame seed, which is a potential source of anti-fungal alternative or to reduce these food contamination in the pastry world.

Photo credit: http://lab.scorpiious.net/breadchem/images/moldy_bread.jpg

The Analysis of the General Attributes of Mangifera indica Leaves Extract as an Additive to Common Vanilla Ice Cream

2011-03-09T01:05:00.000-08:00

Researchers:

Raemel Niklaus P. Leyretana
Sherwin O. Abril
Sharmaine C. Enaje
April Joy A. Vizcarra

Research Adviser: Mrs. Ma. Regaele A. Olarte

Background of the Study

With regards to the world of herbal medicine, boiling and extracting of juices from leaves of plants is common. Evidently, here in the Philippines, treating minor and sometimes major diseases is commonly done by consuming juices of leaves. Science also has proven that some herbal methods done by humans are effective and are proven. Moreover, scientific institutions has also claimed that there are numerous plants that are potential to do such herbal thing. They are, as scientists call, “undiscovered treasures.” According to the Philippine Pharmacists Association which supports the Philippine Health Department, aside from preparing herbal plants as a common tea and be consumed by drinking, it will also be effective for herbal plants to be ingested in food without neglecting proper managing of plants to prolong and preserve its nutrients.

With these statements and tradition that is widely spreading in the country, it is very notable, that science and humans have agreed on both sides that utilization of plants to prolong life and to prevent its eradication is acceptable.

Being in a good and healthy condition nowadays is much difficult than the times before. All that is seen in the market has preservatives, additives that have a negative feedback to our system. It is such that these products being merchandised in the market are way too far from the times where products and goods are low-fat, cholesterol free, etc.

Ice cream in the pre 21^st century times was prepared in home. Ice cream makers make use of traditional, non-chemical way of producing ice cream. Ice creams before were made using real fruit extract and not powders which are being used today. They cool it manually using crushed ice and rock salt.

Ice cream, per se, is one of those products sold in the market and consumed, that is innovated along with time. We can see the nutritional value of these goods which have high fat consistency and saturation that contribute much in cholesterol build up of the body. As time passes by, ice cream manufacturers made the production faster and easier by neglecting traditional ways and changing it to prepared solutions by machines. One major cause of the negative effects of ice cream is its high sugar/glucose level.

Rhetorically, sugar makes up the whole ice cream. Sugar sums all for the ice cream to have its unusual taste and appeal to consumers. Whereas, if the glucose rate will be lessened and a different component be added into natural ice cream, diseases caused by sugar can somehow be alleviated.

Sugar, as science has proved, has many bad effects. Mainly, it can cause diabetes, and disorientation of system organs. Too much intake and wrong intake of glucose can contribute to early mortality.

Resolved that, this study tries to investigate the possibility of inserting infused Mangifera indica (tropical mango) leaves into traditionally made ice cream and determine its general acceptability, and that of mango leaves was proven to decrease blood glucose level in diabetics and potentials.

Jackfruit (Artocarpus heterophyllus) Seeds as Feedstock for Bioethanol

2011-03-08T00:13:00.000-08:00

RESEARCHERS:

Accad, Marlon Bernard Jay O.

Aguilar, Jhon Martin A.

Leyva, Prince R.

Rivera, Ashley F.

Tagongtong, Jasper R.

RESEARCH ADVISER: Mrs. Ma. Regaele Olarte

Significance of the Study

The use of Jackfruit (Artocarpus heterophyllus) seed as another source of bioethanol will be of great help to the following:

Community. It may lessen the pollution in the environment especially in the atmosphere due to its nearly complete combustion as only a very little amount of carbon monoxide is formed. The use of bioethanol has been gaining worldwide acceptance for the following reasons:

1. It is a much cleaner fuel. Bioethanol’s high oxygen content reduces carbon monoxide levels and significantly reduces harmful exhaust emissions.

2. It boosts the octane levels to help the car run smoothly. As an octane enhancer, ethanol can cut emissions of cancer-causing benzene and butadiene by more than 50%.

3. It is biodegradable and has no harmful effects to the environment.

Jackfruit Farmers. Instead of treating the Jackfruit (Artocarpus Heterophyllus) seed as waste, Jackfruit Farmers may use the seeds as their source of income.

Researchers. This research may serve as their basis for another research. It can be a foundation that may strengthen other ideas.

Sensory Attributes of Oregano (Origanum vulgare) Chips

2011-03-07T23:34:00.000-08:00

Researchers:

Merianne J. Manzana

Paul John P. Bauyon

Benzorade Albert B. Dimaala

Ronnel Salivio

Erwin Lopez

Research Adviser: Ma. Regaele A. Olarte

Statement of the Problem

The aim of the study is to determine the sensory attributes of oregano chips.

Specifically, it seeks to answer the following questions:

1. Can nutritional chips be produced from oregano leaves?

2. Is there a significant difference between oregano chips and traditional nutritional chips in terms of its taste, texture, aroma, brittleness, color and shelf-life?
Conceptual Framework

Gumamela (Hibiscus rosa-sinensis): An Alternative Flavoring For Ice Cream

2011-03-07T06:49:00.000-08:00

Researcher:                                       

Kate Jillian Merced Casanova 

  Research Adviser: Mrs. Ma. Regaele A. Olarte

                                Abstract
The research study was conducted to find the feasibility of the gumamela flowers as flavoring for ice cream. The presence of nutritional components in gumamela petals led the researcher to utilize it as flavoring to one of the most favorite dessert of young and old alike. It aimed to find an alternative ingredient that would be beneficial to the health of the people and would be acceptable as to its appearance, taste, texture, and aroma.
After the processes of preparing, cooking, mixing, blending and freezing of the gumamela ice cream, the researcher conducted a taste test. The experimental gumamela ice cream was labeled as A and a branded ice cream was labeled as B. Twenty eight (28) respondents graded the A and B from the scale of 1 to 5 wherein 1 the lowest and 5 is the highest. The results were tabulated and a t-test for two independent samples was used to determine if there is a significant difference between the experimental product and the branded ice cream in terms of the given parameters.
Results showed that there is no a significant difference between the experimental and the branded ice cream. 
Gumamela Petals

 
 Gumamela Syrup

Ingredients Needed in Ice Cream Making

Aloe Vera (Aloe Barbadensis) as an Effective Main Component of Marker Ink

2011-03-03T02:02:00.000-08:00

Researchers:

Calusin, Mary Car V.
Daquioag, Kristine Joy M.
Samillano, Rhona Mae S.
Yap, Carmela A.
Yap, Jamie C.

Research Adviser: Mrs. Ma. Regaele A. Olarte

Statement of the Problem

The researchers aimed to determine if Aloe barbandesis (Aloe Vera) extract can be a main component of a marker ink.

Specifically, the researchers sought to study if there is a significant difference between the experimental product in terms of:

Color
Volatility
Shelf life
Permanence

Discussion

For the statistical analysis of the tests; since the calculated F-value 3.52 was less than the tabular F-value 4.38, there was no significant difference between the colors of the samples. There was also no significant difference between the shelf life of the samples since the calculated F-value 2.36 was less than the tabular F-value 4.38. However, there was a significant difference between the samples’ volatility since the calculated F-value 5.25 was greater than the tabular F-value 4.38. For the permanence of the samples, there was also a significant difference since the calculated F-value 8.29 was greater than the tabular F-value 4.38. The null hypothesis was supported in terms of the color and shelf-life of the samples. However, the permanence and volatility test validated the alternative hypothesis.

The Effect of Euphorbia Hirta L. to Animal Intestinal Parasites

2011-02-27T04:34:00.000-08:00

Researchers:

Mercader, Arlene L.

Mescallado, Kim Leianne M.

Montebon, Mariel S.

Sagana, Patricia Anne B.

Boquiren, Richard M.

Research Adviser:

Mrs. Ma. Regaele A. Olarte

Abstract

Euphorbia Hirta L. or so-called Tawa tawa is a plant abundantly growing in almost all parts of the Philippines and is usually taken for granted due to its undiscovered scientific and medicinal importance. Recently, it was said that it is used in some parts of our country to increase the platelet count of dengue patients. Further studies were conducted to prove its effectiveness.

This research used Euphorbia Hirta L. but it was aimed at the decoction and utilization of the said plant as an animal purgative. Fifty milligrams of Euphorbia Hirta L. samples were gathered and the removal of unnecessary parts was done. Three different amounts of stem pieces which were about 1 cm. long were subjected to heat together with the 20 ml. of distilled water. The decocted products were cooled. Fifteen mice were used to test the decocted products and a commercialized purgative and were kept under observation for 12 hours in fifteen different shoe boxes.

The results were gathered by studying the feces of each mouse obtained from the shoe boxes after the said time. Unpaired t test was used for the statistical analysis. The results showed that there was a direct relationship between the amount of Euphorbia Hirta L. and the number of intestinal parasites purged and the effectiveness of each concentration depends on the amount of Euphorbia Hirta L.

Based on the findings obtained, the researchers concluded that Euphorbia Hirta L. is an effective animal purgative. The researchers recommended further experiments to strengthen this study and to discover the other medicinal uses and contributions of this plant.

The Production of Aromatic Candles Using Waste Plastics as Substitute for Micro Wax

2011-02-27T01:56:00.000-08:00

Researchers:

Antonio, Jude Trixie D.

Ebro, Edel Ain T.

Villanueva, Mary Grace A.

Research Adviser:

Mrs. Ma. Regaele A. Olarte

Abstract

A necessity for cheaper and long-lasting candle motivated the researchers to think about using Polystyrene and LDPE (Low Density Polyethylene) plastics as substitutes for micro wax. The researchers used cheaper ingredients that could make a candle last longer than the normal commercially-released ones. The researchers constructed three different kinds of set-ups; set-up A with polystyrene plastics added up with orange extract for the scent, set-up B with LDPE plastics added up with the orange extract and lastly, set-up C, the controlled set-up with the micro wax added up with the orange extract too. There were significant differences between the experimental and controlled set-ups. Using plastics like these polystyrene and LDPE was better as to compare with the candles that were commercially released with micro wax. The second set-up (set-up B) was found to be the best alternative for candles for it was made of the LDPE plastics. Second was the first set-up (set-up A), because it was made of Polystyrene plastics. Last of all was the set-up C or the controlled set-up which was bought by the researchers and which was found out the worst among the three for it was the most expensive and had the shortest ability to last longer. The study proved that using different kinds of plastics, like what was used by the researchers was better than that of what was usual. The study showed not how useless but how useful and helpful plastics can be with the economy of the world.

The Effect of Clindamycin as an Effective Ingredient in Making Facial Soap

2011-02-27T01:38:00.000-08:00

Researcher: Aisa D. Lamdag

Research Adviser: Mrs. Ma. Regaele A. Olarte

ABSTRACT

Soap is something that should be in every personal emergency kit, but it’s one item that is often overlooked, one reason why the researcher chose this topic. Nowadays, keeping things clean might be a lower priority for you during emergency but it’s something you really need to think about. Soaps would not just clean your skin thus it would also make you feel comfortable.

The researcher made a simple and cheap homemade facial soap through the melt and pour soap process. She used a microwave oven to melt the soap scraps. The concentration of Clindamycin was then added to the liquid soap, stirred and poured to the soap molder, the same procedures were repeated for the different concentrations. The products were tested in terms of its pH level in washing the face and its hardness.

As a result of completing the procedures, the researcher observed that the lowest concentration of Clindamycin has the hardest among the soaps produced. It is also the lowest concentration that has a pH level which is good for the skin since a good facial soap ranges the pH level of 7.4-8.6 pH.

After the experiment and the laboratory testing, the researcher recommends to those who would do the same experiment to further investigate the physical and chemical properties of the soap.

The Effect of Varying Amount of Hydroponic Solutions to the Growth of Lettuce (Lactuca sativa) Plant in a Controlled Hydroponics System

2011-02-27T01:10:00.000-08:00

Researchers:

Christian C. Chua

Research Adviser:

Mrs. Ma. Regaele A. Olarte

Conceptual Framework

The Experimentation and Set-ups of a Controlled Hydroponics System Using Different Amounts of Hydroponic Solution and Lettuce (Lactuca sativa) Plant

Discussion

The hydroponics system designed by the researcher was adopted from the design of the Institute of Plant Breeding CSC-CA, University of the Philippines Los Baños. The cycle of the system is very easy to understand because the plants will be using the nutrients of the solution until they reach their full growth. The system is a labor free and self maintaining system because one can leave the system without monitoring it.

A summary of four set-ups is seen on the results. The tables, graphs and statistical analyses were presented to show if there was a significant difference in the growth of Lactuca Sativa (Lettuce) plant in the experimental and controlled hydroponics set-up. This was measured in terms of height of the plants in centimeters. The first set-up which was the controlled set-up showed how the plant normally grows when planted traditionally (planted on the soil) while the other three set-up showed the use of the controlled hydroponics solution with different amounts of solutions.

As what was expected by the researcher, the plants normally grew on the controlled set-up. Set-up A with 12.5 ml of solution didn’t satisfy the needed nutrients of the plants so as a result, the plants died on the 3^rd week of the experiment. The other two set-ups, set-up B and set-up C with 25ml and 50ml of solutions respectively satisfy the needed nutrients of the plants so the plants grew normally just like on the controlled set-up.

The researcher used unpaired, two sample t-test to determine if there was a significant difference between the growth of lettuce (Lactuca sativa) planted on soil and on the controlled hydroponics system in terms of height in centimeters. Since the statistical units underlying the two samples being compared were non-overlapping. Based on the results of the statistical method used by the researcher, the researcher proved that there is no significant difference between using the controlled hydroponics system and the traditional planting method in yielding Lactuca Sativa (Lettuce) plant.

The results of the experiment showed that 25ml and 50ml amount of solutions are applicable in growing Lactuca Sativa (Lettuce) plant.

SCIENCE INVESTIGATORY PROJECTS Gallery of Muntinlupa National High School :)

Anthracnose Inhibiting Activity of Madre de Cacao (Gliricidia sepium) Leaf Extract on Post – harvest Tomato (Solanum lycopersicum)

Mucus from Brown Garden Snail (Helix aspersa) as Desiccating Agent to Absorb Moisture

Wound Healing Effect of Ashitaba (Angelica keiskei) Extract on Albino Mice

Utilization of Aratilis (Muntingiacalabura) as Feedstock for Bioethanol

The Exterminating Effect of Cane Toad (Bufo marinus) Bufotoxin Crude Extract against Rice Black Bug (Scotinophara coarctata)

Abstract

A TRIBUTE TO MARK LORENZ VALDEZ

Multi-Colored Fabric Dye From Talisay (Terminalia catappa) Leaves Extract

Akapulko (Cassia alata L.) Seeds as Purgative Extender for Pulvoron

Makahiya (Mimosa pudica) Root Extract as an Alternative Ovicide against Dengue Mosquito (Aedes aegypti) Eggs

Prototype Biometric Security System on Personal Computer Using Fingerprint-based Power Switch

Environmental Briquette from Water Hyacinth (Eichhornia crassipes) with Acacia Seeds as Binding Agent

The Antagonistic Effect of American Cockroach (Periplaneta americana) on Escherichia Coli

The Design and Construction of an Improved Water Purifying Apparatus

The General Acceptability of Orange-Flavored Candy with Ikmo (Piper betel) Leaf Extract

Sensory Attributes and General Acceptability of Okra (Abelmoschus esculentus) Seed Herbal Tea

The Anti-fungal Activity of Sesame Seed (Sesamum indicum L.) in White Bread

Researchers: Shenna Marie Sonio Pete Wendell Mangmang Angela Gener Dhalia Cielo Pauline Marie Siazon Research Adviser: Ma. Regaele A. Olarte

The Analysis of the General Attributes of Mangifera indica Leaves Extract as an Additive to Common Vanilla Ice Cream

Jackfruit (Artocarpus heterophyllus) Seeds as Feedstock for Bioethanol

Sensory Attributes of Oregano (Origanum vulgare) Chips

Gumamela (Hibiscus rosa-sinensis): An Alternative Flavoring For Ice Cream

Aloe Vera (Aloe Barbadensis) as an Effective Main Component of Marker Ink

The Effect of Euphorbia Hirta L. to Animal Intestinal Parasites

The Production of Aromatic Candles Using Waste Plastics as Substitute for Micro Wax

The Effect of Clindamycin as an Effective Ingredient in Making Facial Soap

The Effect of Varying Amount of Hydroponic Solutions to the Growth of Lettuce (Lactuca sativa) Plant in a Controlled Hydroponics System

Researchers:
Shenna Marie Sonio
Pete Wendell Mangmang
Angela Gener
Dhalia Cielo
Pauline Marie Siazon
Research Adviser: Ma. Regaele A. Olarte