Antioxidative Property of Soursop Leaf Extract

2492 Words Jan 31st, 2013 10 Pages
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 . . . . . . . . . . .
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However, one scientist from that very same research team decided to go against company’s decision, risking his career, he contacted another company dedicated to harvesting medical plants from the Amazon Rainforest and announced the discovery. (Gregory, 1987) Soursop is rich in phytonutrients and phytochemicals. Soursop contains Vitamin C which is considered as an antioxidant. The content of Vitamin C in each 100 g of Soursop juice contains 20 mg. Therefore, Soursop is one of the important
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sources of Vitamin C. Mechanism of action of Vitamin C as an antioxidant is by capturing and reducing harmful substances that can harm and damage cells (Frank, 1985). Besides Vitamin C, Soursop is also rich in other antioxidants in the form of phytochemical compounds including aceltahid, amyloid, anonain, anomurisin, ananol, atherosperminin, betasitosterol, kampesterol, sitrulin, galaktomanan, prosianidian, and tannins. These compounds are useful for treating various diseases especially cancer so that reinforces the Soursop as a useful medicinal plant (Alibi, 2011). Many regions in the Philippines use Soursop decoction as tea to remove toxins in the body. The leaves of Soursop tree are from small to large type, color green, thick, and hard. The leaf of the Soursop tree is the part commonly used as an antioxidant (Yul, 2011).
Since then, there have been several promising cancer studies on Soursop.
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