Screening of some local plants of the Itawes of Cagayan for antimicrobial activities
Date of Publication
1990
Degree Name
Master of Science in Biology
College
College of Science
Department/Unit
Biology
Thesis Adviser
Esperanza Cabrera
Defense Panel Chair
Florencia Claveria
Defense Panel Member
Josefina De Jesus
Veronica Borbon SPC
Abstract/Summary
Twenty-five local plants of the Itawes of Cagayan were tested for the presence of antimicrobial properties against the gram-positive bacteria: Staphylococcus aureus and Streptococcus pyogenes, against the gram-negative bacteria: Escherichia coli and Salmonella typhi and against the fungi: Candida albicans and Geotrichum candidum. The fresh young leaves of the plants were extracted using five solvents namely: ether, ethyl alcohol, acetone, chloroform, and distilled water and were tested against the six test microorganisms using the filter paper disc-diffusion method of assay. Of the twenty-five plants tested, 16 or 64 percent exhibited zones of inhibition of different diameters. The plants whose extracts showed inhibiting activities against Staphylococcus aureus were Amorphophallus campanulatus (Roxb.) Blume, Citrus aurantifolia (Christm,) Swingle, Triphasia trifolia (Burm.f.) P. Wills., and Cardiospermum halicacabum Linn. against Candida albicans were Phyllanthus reticulatus Poir., Allaeanthus luzonicus (Blanco) F. Vill., Streblus asper Lour., Ficus fiskei Elm., Ficus septica Burm.f., Alocasia macrorrhiza (Linn.) Schott, Amorphophallus campanulatus (Roxb.) Blume, Citrus aurantifolia (Christm.) Swingle, Cardiospermum halicacabum Linn., Adonida merrilli (Becc.), Cordia dichotoma Forst.f. and Passiflora foetida Linn. and against Geotrichum candidum were Phyllanthus reticulatus Poir. and Ficus septica Burm.f. None of the extracts tested had any antimicrobial activity against Streptococcus pyogenes, Escherichia coli and Salmonella typhi. Ethyl alcohol was the best extracting solvent among those tested followed by chloroform, ether, acetone and distilled water in that order.
Abstract Format
html
Language
English
Format
Accession Number
TG01804
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
80 p., 28 cm.
Keywords
Plants -- Analysis; Plants -- Microbiology
Recommended Citation
Turingan, O. M. (1990). Screening of some local plants of the Itawes of Cagayan for antimicrobial activities. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/1289
