摘要
以浒苔为原料,对浒苔膳食纤维提取和漂白工艺条件进行探讨;通过正交试验设计确定酶法提取膳食纤维和漂白的最佳条件。酶法提取膳食纤维的最佳条件,蛋白酶处理的温度为25℃、pH5、用酶量1%、时间为60min;α-淀粉酶处理的温度为30℃、pH6、用酶量0.1%、时间为20min;最佳漂白条件,漂白液浓度0.80%、pH6、漂白时间10min。在此条件下,提取率为40.22%、膨胀力为45.13mL/g、持水力为2171%。产品可作为高品质膳食纤维及理想的食品添加剂。
To study the conditions of extract dietary fibers from entermorpha prolifera.Orthogonal tests were designed to explore the optimum condition for dietary fiber extracting by enzymatic method.The optimum condition of protease was 25 ℃,pH 5,1 % of enzyme concentration and 60 min and the condition of α-amylase was 30 ℃,pH 6,0.1 % of enzyme concentration and 20 min;the results showed that bleaching with a concentration of 0.80 % bleacher under pH 6 for 10 min gave the better results.Under the optimal bleaching and extracting condition,the extracting ratio was 40.22 %,the swollen volume was 45.13 mL/g,the water holding capacity was 2 171 %.Products can be as high-quality dietary fiber and the ideal food additives.
出处
《食品研究与开发》
CAS
北大核心
2011年第3期148-151,共4页
Food Research and Development
基金
2008年浙江医药高等专科学校校级课题(2008006)
关键词
浒苔
膳食纤维
提取
漂白
entermorpha prolifera
dietary fiber
extraction
bleaching
