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자료유형
학술저널
저자정보
Zheng, Hu-Zhe (Department of Food Science and Technology, Kyungpook National University) Hwang, In-Wook (Department of Food Science and Technology, Kyungpook National University) Kim, Suk-Kyung (Food and Bio-industry Research Institute, Kyungpook National University) Lee, Sang-Han (Department of Food Science and Technology, Kyungpook National University) Chung, Shin-Kyo (Department of Food Science and Technology, Kyungpook National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제53권 제3호
발행연도
2010.1
수록면
342 - 350 (9page)

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Unripe apples lie scattered about the orchards because of manual thinning out or falling, however they contain a high amount of polyphenol. In order to enhance the extraction of polyphenol from the unripe apples, carbohydrate-hydrolyzing enzyme (Viscozyme L) aided polyphenol extraction techniques have been studied with response surface methodology. The optimum conditions were as follows: the ratio of Viscozyme L to substrate was 0.0195 (1.95 fungal beta-glucanase units), the reaction temperature was $47.12^{\circ}C$, and the reaction time was 12.52 h. The experimental values of total phenolic content and caffeic acid content of the unripe apples were well matched with the response surface methodology predicted values. The levels of total phenolic content and caffeic acid content obtained from Viscozyme L treatment were about 2 and 13 folds greater, respectively than those of the control treatment.

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