Research
Valenzuela City Science High School A. Marcelo St. Dalandanan, Valenzuela City
This investigatory project entitled
Comparative Study on the Antibacterial Assays of
Kamias (Averrhoa bilimbi) Leaf Extract and
Garlic (Allium sativum) Bulb Extract
against Escherichia coli
Is submitted to
Mrs. Merlyn M. Gamboa
In partial fulfillment of the requirements in Chemistry
Submitted by:
Del Rosario, Lea Joy
Salih, Chandler Jay
Serrano, Ayra Mari
Sumayang, Noel
Taguinod, Joshua Cedric
III – Meyer
Date:
January 7, 2013
Chapter 1
Introduction
Background of the Study
Escherichia coli is a Gram-negative, rod-shaped bacterium that is commonly found in the lower intestine of warm-blooded organisms (endoderm’s). Most E. coli strains are harmless, but some serotypes can cause serious food poisoning in humans, and are occasionally responsible for product recalls. The harmless strains are part of the normal flora of the gut, and can benefit their hosts by producing vitamin K2, and by preventing the establishment of pathogenic bacteria within the intestine. It causes illnesses like typhoid fever, paratyphoid fever, and food borne.
This strain of bacteria, according to studies and research, is confirmed to be inhibited by organic compounds produced and contained in extracts of kamias leaves and garlic bulbs. These two organic products are commonly used in adding flavor to food and they both exhibit their antibacterial properties on the same strain of bacteria. So, this study aims to compare the observable characteristics of the extracts and the statistical values of the effectiveness and rates of inhibition of the extracts produced from the two organic products against E. coli.
Statement of the Problem
Main Problem:
This study aims to compare the effectiveness of kamias leaf extract and garlic extract as antibacterial agents against Escherichia coli.
This investigatory project entitled
Comparative Study on the Antibacterial Assays of
Kamias (Averrhoa bilimbi) Leaf Extract and
Garlic (Allium sativum) Bulb Extract
against Escherichia coli
Is submitted to
Mrs. Merlyn M. Gamboa
In partial fulfillment of the requirements in Chemistry
Submitted by:
Del Rosario, Lea Joy
Salih, Chandler Jay
Serrano, Ayra Mari
Sumayang, Noel
Taguinod, Joshua Cedric
III – Meyer
Date:
January 7, 2013
Chapter 1
Introduction
Background of the Study
Escherichia coli is a Gram-negative, rod-shaped bacterium that is commonly found in the lower intestine of warm-blooded organisms (endoderm’s). Most E. coli strains are harmless, but some serotypes can cause serious food poisoning in humans, and are occasionally responsible for product recalls. The harmless strains are part of the normal flora of the gut, and can benefit their hosts by producing vitamin K2, and by preventing the establishment of pathogenic bacteria within the intestine. It causes illnesses like typhoid fever, paratyphoid fever, and food borne.
This strain of bacteria, according to studies and research, is confirmed to be inhibited by organic compounds produced and contained in extracts of kamias leaves and garlic bulbs. These two organic products are commonly used in adding flavor to food and they both exhibit their antibacterial properties on the same strain of bacteria. So, this study aims to compare the observable characteristics of the extracts and the statistical values of the effectiveness and rates of inhibition of the extracts produced from the two organic products against E. coli.
Statement of the Problem
Main Problem:
This study aims to compare the effectiveness of kamias leaf extract and garlic extract as antibacterial agents against Escherichia coli.
Bibliography: "Escherichia coli - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 6 Jan. 2013. "Garlic - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia "Kamias/Averrhoa Bilimbi/Cucumber Tree/Huang Gua Shu.” Philippine Medical Plants/Philippine Alternative Medicine. N.p., n.d. Web. 6 Jan. 2013. . "What Is E. Coli? (Escherichia Coli)." Medical News Today: Health News. N.p., n.d. Web. 6 Jan. 2013. http://www.medicalnewstoday.com/articles/68511.php Chapter 7