Antioxidative Property of Soursop Leaf Extract

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  • Topic: Cancer, Antioxidant, Soursop
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ANTIOXIDATIVE PROPERTY OF SOURSOP LEAF EXTRACT

A Research Proposal
Presented to
The Faculty of University of Baguio
Science High School

In Partial Fulfillment
Of the Requirements for the Subject
Research III

Quimson, Crystal Ivy O.
Osias, Dymphna Xel D.
Choi, Brian

March 2012

TABLE OF CONTENTS
Title page. . . . . . . . . . . . . . . . . . . . . . . . i
Table of contents. . . . . . . . . . . . . . . . . . . . ii CHAPTER I: THE PROBLEM
Background of the Study . . . . . . . . . . . . . . . . . 1
Significance of the Study . . . . . . . . . . . . . . . . 2
Review of Related Literature . . . . . . . . . . . . . . .3
Research Paradigm . . . . . . . . . . . . . . . . . . . . 7
Theoretical / Conceptual Framework . . . . . . . . . . . .8
Statement of the Problem and Hypothesis . . . . . . . . . 9
Scope and Delimitation . . . . . . . . . . . . . . . . . 11 CHAPTER II: DESIGN AND METHODOLOGY
Research Design . . . . . . . . . . . . . . . . . . . . 12
Data Gathering Tool . . . . . . . . . . . . . . . . . . 12
Data Gathering Procedure . . . . . . . . . . . . . . . . 13
Bibliography . . . . . . . . . . . . . . . . . . . . . . 15

ii

1
CHAPTER I
INTRODUCTION
Background of the Study
Soursop or Guyabano, scientifically known as Annona Muricata Linn, is nutritionally rich in carbohydrates, notably fructose. Guyabano fruit grows from 7 up to 20 centimeters long, they are heart-shaped with pointed tip and form a cone-shaped mass of many carpels that conforms the body of the fruit. It contains indicative amount of rich vitamins such as Vitamin C, Vitamin B1, Vitamin B2, Potassium, and dietary fiber but are deficient in Vitamins A, calcium, and phosphorus(Fauzi, 2011).

Soursop is a broad spectrum of for anti-microbial agent, it profounds high blood pressure and is used for depression, stress, and nervous disorders(Reams, 2011).
The researchers decided to conduct an experiment about the antioxidant activity of Soursop. Various researches show that the Soursop is rich in antioxidants that are beneficial to your health. Antioxidants play a very large role in humans to prevent disease. Antioxidants do all that by suppressing the cellular damage caused by free oxidation process(Alibi, 2011). 2

Significance of the Study
The aim of this study is to determine the antioxidant activity of Soursop (Annona muricata) by getting the leaf extract from Soursop leaves. Thus, to determine if Soursop leaf has other uses aside from removing head lice or bedbugs. The purpose of this study is to identify the level of antioxidants in the Soursop leaf. Thus, if to be proved, will be used as a tea, alternative medicine, ointment and etc. Not only does our study has a potential use in helping the community but particularly by the chemical, pharmaceutical, and food industries can benefit from this study.

Various in-vitro methods have been developed to measure the efficiency of natural antioxidants of the potential fruit either as pure compounds or as a plant extracts; the ability to scavenge free radicals is a significant antioxidant property to sequentially deduct oxidative cellular damage.

Soursop leaf has more properties and benefits than scientists and researchers study right now. The researchers want to study one of the benefits of Soursop leaf or leaves and prove that Soursop leaves really do have antioxidant properties.

3
Review of Related Literature
One of the first scientific references to the Soursop fruit in the United States was by the National Cancer Institute. The Soursop was part of a plant-screening program in 1976 that showed its leaves and stems were effective in attacking and destroying malignant cells. These results however, were part of an internal NCI report and were, for some reasons, never released to the public. The company which had done through research on this cure came upon one stumbling block on its finishing phase. The cure was too natural and under federal law in...
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