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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국식품저장유통학회 Food Science and Preservation 한국식품저장유통학회지 제18권 제5호
발행연도
2011.10
수록면
669 - 677 (9page)

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The objective of this study was to develop a functional drink using maca extract, and to evaluate the latter`s antioxidative activity during storage. Maca extract was added in five different content percentages (0, 8, 16, 24, and 32%), and the physicochemical properties were investigated. The pH of the control drink was lower than that of the drink to which maca extract was added. The ˚Brix increased with the increasing amount of maca extract. The Hunter L value decreased while the yellowness (b) value increased as the maca extract level increased. The results of the consumer acceptance test showed that no significant differences in overall acceptability were observed between the control and the 8%, 16%-, and 24% maca-added drinks. Therefore, it is suggested that up to 24% maca extract can be added to drinks without depressing the quality. The changes in the total polyphenol content, DPPH radical, superoxide anion radical activity, and tyrosinase inhibitory effect were monitored during storage at 4 and 37˚C for four weeks. The results showed that there was a gradual decrease in the total polyphenol content and antioxidant activities after four-week storage, and the drinks containing maca extract exhibited a smaller decrease in antioxidant activity than did the control drink. Moreover, microbial growth was not shown during the same periods.

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UCI(KEPA) : I410-ECN-0101-2018-059-003064922