Studies on the Biological Activities and Physicochemical Characteristics of Pigments Extracted from Korean Purple-Fleshed Potato

한국산 유색감자 색소의 이화학적 특성 및 생리 활성에 관한 연구

  • Published : 2005.04.30


General composition, total anthocyan content, and antioxidative and antimicrobial activities of Korean purple. fleshed potatoes (varieties A-D based on coloring degree of cross sections) were investigated. Slight differences in composition content were observed among varieties. Color intensity analyzed by sensory evaluation test decreased in order of PL-14, 31, 28, 3, 17, and 6, Total anthocyanin contents differed significantly among varieties from 3 to 29 mg Per 100 g, and decreased in order of PL-28, 31, 14, 12, 5, and 3. PL-28, 31, and Jasim potatoes showed slightly higher antioxidant activities than ${\alpha}$-tocopherol. PL-28, 31, 6, and Jasim showed antimicrobial activities against three species each of Gram-positive and-negative bacteria, with highest activities observed against Bacillus subtilis and relatively high activities against E. coli.


anthocyan;potato;antioxidant;antimicrobial activity


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