【摘要】 本文应用H2O2和NaC lO对3种葛根膳食纤维(DF)产品漂白,并对漂白前后的主要理化性质及吸附性能进行了比较研究。结果表明:漂白后DF的持水力、膨胀力、阳离子交换能力等部分功能性质得到较好的改善,对亚硝酸根离子的吸附能力有显著提高。但漂白后葛根DF对胆酸钠吸附能力有所下降,这说明漂白处理对DF保健功能的影响有针对性。更多还原

【Abstract】 Three kinds of dietary fiber from Pueraria lobate Ohwi were bleached with hydrogen peroxide and sodium hypochlorite;the changes of the physicochemical characteristics and adsorption properties of the dietary fiber are investigated.The results reveal that after the bleaching,their water-holding,expansibility,and cation exchangeable capacity are improved,adsorption of nitrite is markedly increased,and adsorption of sodium cholate is decreased.It is concluded that the influence of bleaching on health care function of the dietary fibre exhibits pertinency.更多还原