• Title/Summary/Keyword: bile salt(traurocholate) binding

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Studies on the Dietary Fiber of Brown Rice and Milled Rice (현미와 백미의 식이섬유에 관한 연구)

  • Lee, Hee-Ja;Byun, Si-Myung;Kim, Hyong-Soo
    • Korean Journal of Food Science and Technology
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    • v.20 no.4
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    • pp.576-584
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    • 1988
  • Neutral detergent fiber(NDF) were extracted from the Nampung, Milyang #23, Whasung and Jinhung varieties of rice by neutral detergent fiber method. To determine the properties of NDF three factors were measured : water-binding capacity(WBC), Fe-binding capacity and sodium taurocholate binding with NDF. The average WBC of NDF was $5.60{\pm}0.87gH_2O/g$ NDF, and the average Fe-binding capacity ranged from 24.63% at pH 5.0 to 19.6% at pH 6.0 and 48.98% at pH 7.0. Binding of sodium taurocholate with NDF was determined in vitro using C-14 labeled sodium taurocholate at 100M sodium taurocholate concentrations. NDF binding of Jinhung was 27.87 while Nampung, Milyang #23 and Whasung measured 32% each. When sodium taurocholate concentrations were raised from $40{\mu}M\;to\;240{\mu}M$ the tendency of binding increased as the concentrations increased, but not linearly.

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