Antibacterial activity in leaf extracts of Bixa orellana Linn. (achuete)
Date of Publication
1998
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
College
College of Science
Department/Unit
Biology
Abstract/Summary
Leaf extracts of Bixa orellana Linn. (achuete) using acetone, 95% ethyl alcohol and distilled water as solvents were tested for their antibacterial activity. The acetone and ethanol extracts were effective against the three gram positive test organisms, Bacillus subtilis, Staphylococcus aureus, and Staphylococcus epidermidis. The acetone extract (Bs, 1.27 Sa, 1.33 Se, 1.60) exhibited the greatest antibacterial index compared to the ethanol (Bs, 0.60 Sa, 0.87 Se, 1.27) and distilled water (Bs, 0.40 Sa, 0.60 Se, 0.00) extracts. The distilled water extract showed zones of inhibition against the test organisms S. aureus and B. subtilis. All of the leaf extracts did not show any inhibitory effect against Escherichia coli and Pseudomonas aeruginosa.
Abstract Format
html
Language
English
Format
Accession Number
TU08381
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
25 leaves ; Computer print-out.
Keywords
Antibacterial agents; Extracts; Medicinal plants; Plants, Useful; Microbial sensitivity tests; Leaves--Microbiology
Recommended Citation
de Peralta, J., Ormasa, A., & Villaflores, M. (1998). Antibacterial activity in leaf extracts of Bixa orellana Linn. (achuete). Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/5913
