Abstract
Hee Jin Im, Bo Yeon Park, and Kyung Young Yoon*Department of Food and Nutrition, Yeungnam UniversityAbstract This study was conducted for the production of water-soluble dietary fiber (SDF) from buckwheat hulls byusing Celluclast or Viscozyme. The functionality of this SDF, including antioxidant activity, glucose- and bile acid-retardation effects in vitro, was measured. SDF yields from cellulose and hemicellulose fractions were 60.5 and 123.7 g/kg dry matter, respectively. Analysis of molecular weight distribution of SDF by using gel chromatography showed thatSDF degradation increased with increase in reaction time. The antioxidant activity of SDF obtained by enzymatichydrolysis was higher than that of dietary fiber without enzyme treatment. SDF showed higher retardation effects onglucose and bile acid than the sample without dietary fiber did. The results of this study suggested that SDF producedfrom buckwheat hull by enzymatic hydrolysis is a good source of functional food material because of its high antioxidantactivity and glucose- and bile acid-retardation effects.Keywords: buckwheat, glucose-retardation effects, bile acid-retardation effects, antioxidant activity, soluble dietary fiber
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