A. S. Lubaina1*, P. R. Renjith1, Praveen Kumar2
1Department of Botany, Christian College, Kattakada, Thiruvananthapuram, Kerala, India
2Department of Zoology, Government College for Women, Thiruvananthapuram, Kerala, India
*Address for Corresponding Author:
A. S. Lubaina,
Department of Botany, Christian College, Kattakada, Thiruvananthapuram, Kerala, India.
Abstract
Objective: Pineapple peel the major by-product of pineapple processing industry represent between 50 to 65 % of total weight of the fruit. The increasing production of pineapple processed items results in massive waste generations causing severe environmental pollution. The present study aims to recycling pineapple wastes by evaluating bactericidal potentiality of petroleum ether, ethyl acetate, ethanol and water extracts of pineapple peel against infectious bacterial strains. Materials and methods: The four extracts of pineapple peel were evaluated for antibacterial activities against gram-positive bacteria such as Staphylococcus aureus (ATCC 29213)and gram-negative species such as Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853), Vibrio cholera (MCV09) and Klebsiella pneumoniae (ATCC 700603) using agar well diffusion method. Results: Among the tested extracts of pineapple peel, ethyl acetate showed significant antibacterial activity in all bacterial strains and the gram negative bacteria such as Pseudomonas aeruginosa, Vibrio cholera and Escherichia coli revealed the highest zone of inhibition (20mm) and the results were comparable with the synthetic antibiotic tetracycline (24mm). Conclusion: The results of the present investigation suggest that the pineapple waste can be used as potential leads to discover new drugs to control some food poisoning and other infectious bacteria.
Keywords: pineapple peel, Staphylococcus aureus, Pseudomonas aeruginosa, Vibrio cholera Escherichia coli, Klebsiella pneumoniae
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