Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Properties of Chemical Components of Camellia japonica L. loaves According to Picking Time

동백잎의 채취시기에 따른 화학적 성분 특성

  • Kim, Bong-Sun (Dept. of Food In Cooking Science, Sunchon National University) ;
  • Choi, Ok-Ja (Dept. of Food In Cooking Science, Sunchon National University) ;
  • Shim, Ki-Hoon (Dept. of Food In Cooking Science, Sunchon National University)
  • 김봉순 (순천대학교 식품과학부 조리과학과) ;
  • 최옥자 (순천대학교 식품과학부 조리과학과) ;
  • 심기훈 (순천대학교 식품과학부 조리과학과)
  • Published : 2005.06.01
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Abstract

The purpose of this study was to analyze the chemical component of Camellia japonica L. according to picking time. Leaves of Camellia japonica L. were picked in April and May,2003. Free sugars (fructose, glucose and sucrose) and organic acids (citric acid, tartaric acid, succinic acid, acetic acid) were present in the Camellia japonica L. leaf. The contents of total free sugars and organic acids increased as picking time was delayed. The major components of free amino acids were aspartic acid, glutamic acid and histidine, and those of total amino acids were histidine and alanine. The contents of total free amino acids and total amino acids were decreased as picking time was delayed, while the ratio of essential amino acids to the total amino acids increased. The amount of minerals (P, Ca, K, Na and Fe), chlorophyll and total polyphenol increased as picking time was delayed.

동백잎의 채취시기에 따른 일반성분, 유리당, 유기산, 아미노산, catechin, chlorophyll 및 total polyphenol 등의 함량은 다음과 같다. 동백 잎의 조단백과 조지방 및 ascorbic acid 함량은 채취시기가 늦을수록 감소하였고, 조회분과 조섬유 함량은 채취 시기가 늦을수록 증가하는 경향을 보였다. 유리당은 fructose, glucose, sucrose 등 3개의 당이 확인되었고, 총 유리 당 함량은 채취시기가 늦을수록 증가하였다. 유기산은 citric acid, tartaric acid, succinic acid, acetic acid 등이 검출되었고, 채취 시기가 늦을수록 총함량은 증가하였다. 동백잎의 주된 유리아미노산은 aspartic acid, glutamic acid, histidine이었고, 채취시기가 늦을수록 총유리 아미노산 함량은 감소하였다. 동백잎의 주된 구성아미노산은 histidine, alanine이었고, 채취시기가 늦을수록 구성아미노산의 함량은 감소하였으며, 총아미노산에 대한 필수아미노산의 비율은 증가하였다. 동백 잎에 함유된 무기질은 P, Ca, K, Na, Fe등으로 채취시기가 늦을수록 함량은 증가하였으며, 동백 잎의 chlorophyll 함량과 total polyphenol 함량은 채취 시기가 늦을수록 증가하였다.

Keywords

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