Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Approximate Composition and Physicochemical Properties of Plum (Prunus Salicina)

국내산 자두 주요 품종의 일반성분 및 이화학적 성분 특성

  • Sung, Youn-Jung (Department of Food Science and Technology, Kyungpook National University) ;
  • Kim, Young-Chan (Department of Food Science and Technology, Kyungpook National University) ;
  • Kim, Mi-Yeon (Department of Food Science and Technology, Kyungpook National University) ;
  • Lee, Joo-Baek (Department of Health Food, Taegu Health college) ;
  • Chung, Shin-Kyo (Department of Food Science and Technology, Kyungpook National University)
  • Published : 2002.08.31
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Abstract

Approximate composition and physicochemical properties of 2 cultivars of plum (P. salicina), Humoosa and Daeseok, were examined. The contents of crude fat and N-free extract were different between 2 cultivars. Total mineral contents of Humoosa and Daeseok were 30.00 and 17.99% respectively, and S, K and Mg were major minerals in both cultivars. Humoosa has higher contents of fructose whereas Daeseok has higher contents of sucrose. Major organic acid in flesh was malic acid. While citric acid was major organic acid in the peel of Humoosa, malic acid was major in the peel of Daeseok. Glutamic acid, alanine and ${\gamma}-aminoisobutyric$ acid were major free amino acid in both cultivars and their total contents were about the same.

자두 후무사(포마사)와 대석조생 품종의 일반성분 및 이화학적 성분을 조사하였다. 일반성분으로 후무사와 대석조생의 조지방과 가용성무질소물은 약간의 차이가 있었고 수분, 조단백, 조섬유와 조회분은 비슷하게 나타났다. 식이섬유의 함량은 품종간에 차이를 보이지 않았고, 가용성과 불용성 식이섬유의 비율이 유사한 것으로 확인되었다. 자두의 무기질 총 함량은 후무사가 30 mg%, 대석조생이 17.99 mg%로 후무사가 조금 많았고, 주된 무기질은 황(5), 칼륨(K), 마그네슘(Mg) 순이었다. 유리당 중 후무사는 fructose의 함량이 높았고, 대석조생이 sucrose의 함량이 가장 높았다. 유기산의 총함량은 대석조생이 높았으며, 과육에 있어서 주된 유기산은 malic acid였고, 과피에 있어서는 후무사는 citric acid, 대석조생종은 malic acid가 주된 유기산이었다. 유리아미노산은 두 품종 모두, glutamic acid, alanine, ${\gamma}-aminoisobutyric$ acid, serine의 순으로 높은 함량을 보였으며, 총 아미노산 함량은 두 품종이 비슷하였다.

Keywords

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