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In vitro antibacterial activities and composition of Carica papaya cv. Sekaki/Hong Kong peel extracts


Abdullah Sani, Muhamad Shirwan and Bakar, Jamilah and Abdul Rahman, Russly and Abas, Faridah (2017) In vitro antibacterial activities and composition of Carica papaya cv. Sekaki/Hong Kong peel extracts. International Food Research Journal, 24 (3). pp. 976-984. ISSN 1985-4668; ESSN: 2231-7546


Ten solvents were used to extract phytochemicals from the peel of Carica papaya cv. Sekaki/Hong Kong to determine their antibacterial activities. Moderate to clear inhibition on Corynebacterium diphtheriae, Streptococcus pneumoniae, Bacillus subtilis and Clostridium perfringens were obtained from the disk diffusion test out of fourteen pathogens tested. Petroleum ether extract, the most potent extract, showed moderate inhibition towards C. diphtheria and S. pneumoniae at MIC of 5.63 mg/mL and 1.40 mg/mL. Polar solvents gave higher yield, total phenolic and total flavonoid contents than nonpolar solvents. Extract yields were 10.9 to 84.1 mg/g in polar solvents and 3.9 to 20.3 mg/g in non-polar solvents. Twenty eight compounds were identified in petroleum extracts through GC/MS analysis. Among the compounds identified were fatty acids, esters, alkane, tocopherols and sterols. 9,12,15-octadecatrienoic acid was the most abundant compound.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Halal Products Research Institute
Publisher: Faculty of Food Science and Technology, Universiti Putra Malaysia
Keywords: Solvent extraction; Antibacterial activity; Peel; GC/MS analysis
Depositing User: Nabilah Mustapa
Date Deposited: 11 Jan 2018 09:30
Last Modified: 11 Jan 2018 09:30
URI: http://psasir.upm.edu.my/id/eprint/58354
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