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Microbiology and Biotechnology Letters

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Microbiol. Biotechnol. Lett. 2009; 37(4): 371-376

체리(Prunus avium L.)의 항균 및 항산화 활성

Antimicrobial and Antioxidant activity of the Fruit of Prunus avium L

Seon-Mi Ahn , Hee-Young Ryu , Dong-Kyoon Kang , In-Chang Jung and Ho-Yong Sohn

Dept. of Food and Nutrition, Andong National University, 1Dept. of Food and Nutrition, Andong National University, 2Agricultural Research & Extension Services of Agricultural Environmental Research, 3Dept. of Food and Nutrition, Andong National University, 4Dept. of Food and Nutrition, Andong National University

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The fruits of sweet cherry are highly appreciated by the consumer due to their precocity and quality, such as their sweetness, color and sourness. In this study, the hot-water extract and its sequential organic solvent fractions were prepared from domestic Napoleon sweet cherry (Prunus avium L.) to investigate antimicrobial and antioxidant activity. The hot-water extract contained about 40% sugars, and the solvent fraction yields for hexane, ethylacetate (EA), butanol, and water residue were 0.01%, 3.45%, 16.30%, and 80.24%, respectively. Contents of total polyphenol and total flavonoid of the fractions were 1.24~5.24%, and 0~3.76%, respectively. Among the fractions, EA fraction showed the highest total polyphenol and total flavonoid concentrations. Evaluation of antimicrobial activity of the extract and fractions revealed that EA fraction and butanol fraction contained strong antibacterial activity against Listeria monocytogenes, Staphylococcus aureus, and Salmonella typhimurium with minimal inhibitory concentration (MIC) of 0.5~1.0 mg/mL. But the extract and fractions tested were not active to Pseudomonas aeruginosa. In a while, only hexane fraction showed anti-Candida activity with 0.5~1.0 mg/mL of MIC. The fraction showed strong activity against different multi-antibiotics resistant strains such as C. albicans CCARM 14020. Antioxidative activity assay showed that EA fraction has a strong DPPH scavenging activity and a reducing power. The $IC_{50}s$ of vitamin E and EA fraction were 15.5 and $195.5;{mu}g/mL$, respectively. Our results suggest that the fruit of P. avium L. has high potentials with anti-Candida and antioxidative activity.

Keywords: Antibacterial, anti-Candida, antioxidant, fruit of Prunus avium L.

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