Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Chemical Characteristics and Physiological Activities of Plums (Oishiwase and Formosa)

자두의 화학적 특성 및 생리활성

  • Jung, Gi-Tai (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Ju, In-Ok (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Choi, Dong-Geun (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Jeong, Jong-Sung (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Ryu, Jeong (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Ko, Bok-Rai (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Choi, Joung-Sik (Jeollabuk-do Agricultural Research and Extension Services)
  • Published : 2005.10.31
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Abstract

Chemical characteristics and physiological activities of plums (Oishiwase and Formosa) were evaluated. Proximate composition of plums consisted of (w/w) 1.9-6.2% protein, 2.3-7.1% fat, 3.5-4.1% ash, and 84,1-88,7% carbohydrate. Organic acids, such as oxalic, malic, succinic, and acetic acids were detected, except in Oishiwse acetic acid was not detected. Free sugars consisted of sorbitol, glucose, fructose and sucrose. Total fiber and total phenolics compounds of plum rind were higher than those of flesh. Electron-donating abilities of rind ethanol extracts were higher than those of BHA and tocopherol, and were twofold higher than those of flesh extracts. Nitrite-scavenging abilities of rind and flesh extracts were significantly higher (over 97%) at pH 1.2 and 3.0. Tyrosinase-inhibitory activities ranged 88.5 to 100%. SOD-like activities of all extracts were weak at 22.7 to 27.2%.

자두를 이용한 기능성 가공식품 개발을 위하여 화학적 특성과 생리활성을 조사하였다. 자두의 일반성분은 단백질 1.9-6.2%(w/w), 지방 2.3-7.1%(w/w), 회분 3.5-4.1%(w/w), 탄수화물 84.1-88.7%(w/w) 이었다. 유기산은 oxalic acid, malic acid, succinic acid, acetic acid 등이 검출되었으나 대석조생은 acetic acid가 검출되지 않았다. 유리당은 sorbitol, glucose, fructose, sucrose가 확인되었다. 총 식이섬유와 총 페놀성 함량은 과피가 과육보다 많이 함유되었다. 자두 과피 에탄을 추출액의 DPPH에 대한 전자공여율은 BHA와 tocopherol 보다 높았으며 과육의 2배 이상 높게 나타났다. 아질산염소거율은 과육과 과피 모두 pH 1.2와 pH 3.0에서 97% 이상 높았으며 tyrosinase 저해활성은 88.5-100%로 아주 높았다. 자두의 SOD유사활성은 22.7-27.2%로 저조하였다.

Keywords

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