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Characteristics of Antioxidative and Antimicrobial Activities of Various Cultivars of Sweet Potato
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 Title & Authors
Characteristics of Antioxidative and Antimicrobial Activities of Various Cultivars of Sweet Potato
Lee, Hyang-Hee; Kang, Seong-Gook; Rhim, Jong-Whan;
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 Abstract
Antioxidative and antimicrobial activities of ethanol extracts from 2 colored sweet potatoes such as purple and yellow, 5 pale yellow sweet potatoes, and 8 general cultivars of sweet potato were investigated. Colored sweet potatoes showed the highest antioxidative activity, followed by Saengmi and Yeonmi, which were pale yellow sweet potato cultivars, and Hwangmi, which was a general cultivar of sweet potato. Colored sweet potatoes also showed distinctively lower mold and surface microbial number (cfu) than the pale yellow sweet potatoes and the general cultivars of sweet potato. Although all sweet potatoes tested did not represent any antimicrobial activity against yeast and mold, they exhibited strong antimicrobial activity against Streptococcus faecalis. Especially, purple and yellow sweet potatoes showed antimicrobial activity against wide range of bacteria.
 Keywords
sweet potato;antioxidative activity;antimicrobial activity;
 Language
Korean
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