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改性薯渣纤维粉制备及特性研究
引用本文:张颖,张佳琪,肖颜林,徐德琼,陈功,游敬刚. 改性薯渣纤维粉制备及特性研究[J]. 食品科技, 2012, 0(9): 166-170
作者姓名:张颖  张佳琪  肖颜林  徐德琼  陈功  游敬刚
作者单位:四川省食品发酵工业研究设计院;四川大学轻纺与食品学院
摘    要:以鲜甘薯为原料,研究改性薯渣纤维粉的制备及特性。采用纤维素酶酶法改性工艺,通过响应面法优化的工艺参数为:酶浓度1.45%、酶解pH5.0、酶解时间4h、酶解温度50℃;改性薯渣纤维粉品质特性如持水率和膨胀力大幅度提高,溶解性、吸油能力和流动性有较小幅度的提高;制作高黏度的改性纤维制品需适当控制添加剂如NaCl、NaHCO3的含量,蔗糖的添加有利于制作高黏度的改性纤维制品。

关 键 词:改性  薯渣  纤维  酶解  特性

Preparation and characteristics of modified sweet potato dregs fiber powder
ZHANG Ying,ZHANG Jia-qi,XIAO Yan-lin,XU De-qiong,CHEN Gong,YOU Jing-gang. Preparation and characteristics of modified sweet potato dregs fiber powder[J]. Food Science and Technology, 2012, 0(9): 166-170
Authors:ZHANG Ying  ZHANG Jia-qi  XIAO Yan-lin  XU De-qiong  CHEN Gong  YOU Jing-gang
Affiliation:1(1.Sichuan Academy of Food and Fermentation Industries,Chengdu 611130;2.College of Light Industry and Food,Sichuan University,Chengdu 610065)
Abstract:The preparation and characteristics of modified sweet potato dregs fiber powder were studied with fresh sweet potato as raw material by using cellulose enzymatic modified process and response surface method.The optimization process parameters were enzyme concentration 1.45%,enzyme pH5.0,hydrolysis time 4 h,hydrolysis temperature 50 ℃;The quality characters of modified sweet potato dregs fiber powder such as the water-holding ratio and expansive force were improved greatly,other indexes such as solubility,oil-absorption capability and fluidity improved less;The content of additive such as salt and sodium bicarbonate should be controlled advisably in the high viscosity modified fiber and the viscosity was getting bigger along with the increasing addition of sugar.
Keywords:modify  sweet potato dregs  fiber  enzyme  characteristics
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