Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Physiological activities of water extracts from sweet persimmon leaves

단감 잎 추출물의 생리 활성

  • Son, Ji-Young (Sweet Persimmon Research Institute, Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Ahn, Gwang-Hwan (Sweet Persimmon Research Institute, Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Eun-Gyeong (Sweet Persimmon Research Institute, Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Choi, Seong-Tae (Sweet Persimmon Research Institute, Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Lee, Dong-Uk (School of Bioconvergence, Kyungnam University) ;
  • Park, Hye-Won (School of Bioconvergence, Kyungnam University) ;
  • Lee, Seung-Cheol (School of Bioconvergence, Kyungnam University)
  • 손지영 (경상남도농업기술원 단감연구소) ;
  • 안광환 (경상남도농업기술원 단감연구소) ;
  • 김은경 (경상남도농업기술원 단감연구소) ;
  • 최성태 (경상남도농업기술원 단감연구소) ;
  • 이동욱 (경남대학교 바이오융합학부) ;
  • 박혜원 (경남대학교 바이오융합학부) ;
  • 이승철 (경남대학교 바이오융합학부)
  • Received : 2020.06.14
  • Accepted : 2020.07.23
  • Published : 2020.08.31
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Abstract

This study was conducted to evaluate several physiological activities of 4 sweet persimmon cultivar leaf water extracts. One new cultivar ('Hongchu' (HC)]) and three traditional cultivars ('Sangseojosaeng' (UW), Japanese Uenishiwase; 'Seochonjosaeng' (NW), Japanese Nishimurawase; and 'Buyu' (FY), Japanese Fuyu) were used in this study. The HC extract showed significantly higher DPPH and ABTS radical scavenging activities, tyrosinase inhibitory activity, and acetaldehyde dehydrogenase activity than the other extracts, while the FY extract exhibited a relatively higher alcohol dehydrogenase activity. The HC extract contained higher amount of phenolics and ascorbic acid. These results suggest the possibility of high-quality persimmon leaf tea development using the new sweet persimmon cultivar, HC.

단감연구소에서 출하 시기 조절을 위해 육성된 중생종 단감 신품종 홍추와 기존 재배품종 상서조생, 서촌조생, 부유 3품종의 잎 추출물을 제조하여 생리활성을 비교하였다. 그 결과, 홍추의 잎 추출물의 총페놀 함량, Vit. C 함량, DPPH 및 ABTS 라디칼 소거능, ADH 활성에 미치는 영향이 다른 추출물에 비하여 유의하게 높다는 결과를 얻을 수 있었다. ADH 활성도는 부유의 잎 추출물에서 다른 품종에 비해 비교적 높게 나타났다. 이상의 결과는 신품종 단감 홍추의 잎을 이용한 고품질 감잎차의 제조가 가능함을 시사한다.

Keywords

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