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논문 기본 정보

자료유형
학술저널
저자정보
Zheng, Hu-Zhe (Department of Food & Nutritional Engineering, Jiangsu Food & Pharmaceutical Science College) Hwang, In-Wook (School of Food Science and Biotechnology, Kyungpook National University) Kim, Byoung-Kwan (School of Food Science and Biotechnology, Kyungpook National University) Kim, Young-Chan (Korea Food Research Institute) Chung, Shin-Kyo (School of Food Science and Biotechnology, Kyungpook National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제57권 제4호
발행연도
2014.1
수록면
457 - 461 (5page)

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초록· 키워드

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Unripe apples contain significant amount of phenolics with various health benefits. A pilot scale enrichment process of unripe apple phenolics with Viscozyme L extraction and XAD-7 sorption process, based on the total phenolic content (TPC), phenolics content by high-performance liquid chromatography analyses, and antioxidant activities were studied. Antioxidant activities were tested by measuring oxygen radical absorbing capacity (ORAC), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, and ferric-reducing antioxidant power (FRAP). The phenolics-rich final product, apple antioxidant phenolics (AAP) has 771-fold higher TPC and 600-fold higher antioxidant activity of unripe apples. Through XAD-7 sorption AAP showed 52, 87, 70 and 44-fold increases in TPC, ORAC, DPPH and FRAP values, respectively. AAP showed more than 95% stability at the temperature range of 20 to $120^{\circ}{\ldots}$ and pH range of 1.47 to 8.5. Apple phenolics extraction process of Viscozyme L extraction coupled with XAD-7 sorption could be applied to the production of health benefit antioxidants.

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