Title: Preparation optimization on high oil absorption microporous starch by response surface methodology
Abstract: With potato starch and oil absorption rate as raw material and evaluation index,the optimum techniques to improve oil absorption rate were determined with dual enzymatic stepwise handled starch.The result showed that the oil adsorption reached 86.17% when withα-amylase treatment.Moreover,glucoamylase treatment enhanced oil absorption.The pH,temperature,time of mixing and the enzyme adding quantity affected oil adsorption capacity.The results of the response surface showed that oil adsorption capacity of microporous starch reached 107.51%and the relative error was 0.60%compared with the predicted values 108.16%,when glucoamylase adding quantitys at 1%,pH 5.5,temperature at 50 ℃,enzymatic hydrolysis for 12 h.The difference was not significant compared with predict value,indicated that the model fitting degree was good.It is suggested that optimized microporous starch peeparation technology is accurate and reliable,improved 21.34% of oil absorption rate when compared to the starch treated byα-amylase.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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