Antimicrobial analysis of guava leaves on E. coli

Session Number

Project ID: MEDH 04

Advisor(s)

Dr. John Thurmond; Illinois Mathematics and Science Academy

Discipline

Medical and Health Sciences

Start Date

19-4-2023 9:20 AM

End Date

19-4-2023 9:35 AM

Abstract

Natural products have been used throughout history to treat various illnesses and diseases. Approximately 80% of drugs on the market are derived from natural products, which include plants, herbs, and other organisms. Psidium guajava, known as guava, is a popular fruit found in the Philippines, a tropical country in Southeast Asia. Not only is Psidium guajava a staple in many Filipino dishes and desserts, but is also known to possess medicinal properties. Dry guava leaves and liquid extract were acquired from companies in Washington and Texas. Dried guava leaves were crushed to a fine powder and added to four different solvents: ethanol, methanol, water, and hexane. The guava leaf extract was set aside for testing. The solutions were studied by testing their antimicrobial properties against Escherichia coli using disk diffusion method. Results showed a larger zone of inhibition with ethanol, methanol, and liquid extract.

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Apr 19th, 9:20 AM Apr 19th, 9:35 AM

Antimicrobial analysis of guava leaves on E. coli

Natural products have been used throughout history to treat various illnesses and diseases. Approximately 80% of drugs on the market are derived from natural products, which include plants, herbs, and other organisms. Psidium guajava, known as guava, is a popular fruit found in the Philippines, a tropical country in Southeast Asia. Not only is Psidium guajava a staple in many Filipino dishes and desserts, but is also known to possess medicinal properties. Dry guava leaves and liquid extract were acquired from companies in Washington and Texas. Dried guava leaves were crushed to a fine powder and added to four different solvents: ethanol, methanol, water, and hexane. The guava leaf extract was set aside for testing. The solutions were studied by testing their antimicrobial properties against Escherichia coli using disk diffusion method. Results showed a larger zone of inhibition with ethanol, methanol, and liquid extract.