Comparative Studies on the Dietary Fiber, Amino Acids and Lipid Components of Yullmoo and Yeomjoo

율무와 염주의 식이섬유, 아미노산 및 지질 성분의 비교

  • Woo, Ja-Won (Department of Food & Nutrition, Yonsei University) ;
  • Lee, Mi-Suck (Department of Food & Nutrition, Yonsei University) ;
  • Lee, Hee-Ja (Department of Food & Nutrition, Jungkyung Technical College) ;
  • Kim, Hyong-Soo (Department of Food & Nutrition, Yonsei University)
  • 우자원 (연세대학교 식생활학과) ;
  • 이미숙 (연세대학교 식생활학과) ;
  • 이희자 (중경공업전문대학 식품영양과) ;
  • 김형수 (연세대학교 식생활학과)
  • Published : 1989.04.01

Abstract

The study was conducted to compare the components such as proximate composition, total dietary fiber(TDF) content, acid detergent fiber(ADF) content, lignin, water binding capacity(WBC), amino acid composition and lipid components from brown Job's tears, dehulled Job's tears, brown Yeomjoo and bran of Job's tears. The results from this study are summerized as follows: Total dietary fiber(TDF) content of Job's tears, brown Job's tears, brown Yeomjoo and bran of Job's tears were 2.70%, 3.86%, 4.33% and 13.3% each. Water-binding capacity(WBC) of TDF and ADF were $2.63{\pm}0.02g\;H_2O/g$ TDF and $5.89{\pm}0.15g\;H_2O/g$ ADF each. In amono acids composition of samples, glutamic acid content was the highest and the next was leucine. Chemical score of leucine in dehulled Job's tears was very high(189), in contrast lysine was very low$(22{\sim}23)$ So lysine was a first limitting amino acid in Job's tears and Yeomjoo. Neutral lipid contents were 90.89%-96.55%, glycolipid contents were 2.35%-7.48% and phospholipid contents were very low. The major fatty acids of lipid fractions were palmitic acid. oleic acid and linoleic acid.

Keywords

total dietary fiber(TDF);acid detergent fiber(ADF);water binding capacity(WBC)