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직냉식 냉장고에서 조건별로 저장한 절임배추의 항산화 및 영양성분 분석

Analysis of Nutritional Compositions and Antioxidant Activities of Salted Chinese Cabbage Based on Storage Conditions in Direct Refrigerator

산업식품공학 2020년 24권 3호 p.207 ~ 213
박지현, 김하윤, 김진세, 조용식, 김경미, 장현욱, 황영,
소속 상세정보
박지현 ( Park Ji-Hyun ) - National Institute of Agricultural Sciences Department of Agrifood Resources
김하윤 ( Kim Ha-Yun ) - National Institute of Agricultural Sciences Department of Agrifood Resources
김진세 ( Kim Jin-Se ) - National Institute of Agricultural Sciences Department of Engineering
조용식 ( Cho Yong-Sik ) - National Institute of Agricultural Sciences Department of Agrifood Resources
김경미 ( Kim Kyung-Mi ) - National Institute of Agricultural Sciences Department of Agrifood Resources
장현욱 ( Jang Hyun-Wook ) - National Institute of Agricultural Sciences Department of Agrifood Resources
황영 ( Hwang Young ) - National Institute of Agricultural Sciences Department of Agrifood Resources

Abstract


This study was conducted to find out the change in nutritional components and antioxidant activities of salted Chinese cabbage according to storage temperature and duration using supercooling. Salted Chinese cabbage was investigated every 2 weeks while it was stored at -2oC and 2oC for 8 weeks. This was followed by an analysis of freeze dried samples. The analyzed contents were free sugar and free amino acid contents, DPPH and ABTS radical scavenging activity, and TPC and TFC. Free sugar content of salted Chinese cabbage decreased with longer storage duration, while free amino acid did not change significantly. DPPH and ABTS radical scavenging activities did not change significantly with storage duration whereas the TPC and TFC of salted Chinese cabbage stored at -2oC was higher than that stored at 2oC for 6 weeks. Therefore, the quality of salted Chinese cabbage was maintained in direct refrigerator storage for a long duration, showing economic and industrial values as a new storage technology.

키워드

direct refrigerator; salted Chinese cabbage; supercooling; antioxidant; nutritional composition

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