Physicochemical Composition of Ramie Leaves (Boehmeria nivea L.)

모시잎의 이화학적 성분

  • Park, Mi-Ran (Department of Food and Nutrition, Chosun University) ;
  • Lee, Jae-Joon (Department of Food and Nutrition, Chosun University) ;
  • Kim, Ah-Ra (Department of Food and Nutrition, Chosun University) ;
  • Jung, Hae-Ok (Department of Culinary Art, Chodang University) ;
  • Lee, Myung-Yul (Department of Food and Nutrition, Chosun University)
  • Received : 2010.06.03
  • Accepted : 2010.11.19
  • Published : 2010.12.30

Abstract

We quantitated the major chemical components of ramie leaves (Boehmeria nivea L.) powder. The proximate compositions (all w/w) was 5.42% moisture, 28.15% crude protein, 6.95% crude fat, 15.27% crude ash, and 54.79% carbohydrate, respectively. The total, insoluble, and soluble dietary fiber contents were $39.66{\pm}1.84g/100g$, $20.32{\pm}2.02g/100g$, and $19.34{\pm}2.84g/100g$, respectively. The major free sugars were glucose, galactose and lactose. Seventeen amino acids were isolated. Essential amino acids constituted 44.65% of the total. When free amino acid levels were evaluated, 25 kinds of components were detected, of which 18.15% were essential. Only caproic acid methyl ester and pentadecanoic acid were detected when fatty acid examined. The contents of vitamin A, vitamin E and vitamin C were 0.0194 mg%, 0.0184 mg%, and 0.1833 mg%, respectively. The mineral contents of were in order of Cu

모시잎 분말의 생리활성 기능과 이용 가능성에 관한 연구의 일환으로 모시잎 분말의 일반성분 및 영양성분을 측정한 결과는 다음과 같다. 일반성분은 수분 함량 5.42%, 조단백질 28.15%, 조지방 6.95%, 조회분 15.27% 및 탄수화물 54.79%를 함유하였다. 총식이섬유소 함량은 39.66 g/100 g이며, 그 중 불용성 식이섬유소와 수용성식이섬유소 함량은 각각 20.32 g/100 g와 19.34 g/100 g로 나타났다. 구성당은 glucose가 가장 많았고 다음으로 lactose, galactose 순으로 총 3종이 검출되었다. 구성 아미노산은 aspartic acid 함량이 2,432.53 mg%로 가장 많았으며, 다음으로는 glutamic acid, leucine, histidine, phenylalanine, valine, alanine 순이었다. 유리 아미노산은 asparagine이 983.57 mg%로 가장 많아 총 유리 아미노산 함량의 절반 이상을 차지하였으며, 그 외에는aspartic acid, ${\gamma}$-amino-n-butyric acid, valine, phenylalanine, alanine, threonine, phosphoserine 순으로 나타났다. 지방산 조성으로 구성 지방산 중 포화지방산 함량은 caproic acid methyl ester가 58.23%, pentadecanoic acid가 41.77% 검출되었으며, 불포화지방산은 극미량으로 검출되었다. 비타민 함량 분석으로 항산화 비타민 A, E 및 C의 함량은 각각 0.0194 mg%, 0.0184 mg% 및 0.1833 mg%로 검출되었으며, 비타민 C의 함량이 가장 높게 나타났다. 무기질을 분석한 결과, Ca 함량이 3,135.20 mg%로 가장 많았으며, K이 1,434.60 mg%였고 다음으로 Mg, Na, Mn, Fe, Zn, Cu 순으로 검출되었고 Zn과 Cu의 함량은 미량으로 나타났다. 유기산은 총 3종의 유기산이 검출되었으며, 이 중 succinic acid가 가장 많았고, 다음으로 citric acid, maleic acid 순으로 나타났다.

Keywords

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