Preparation and Some Functional Properties of Rice Bran Protein Concentrate at Different Degree of Hydrolysis using Bromelain and Alkaline Extraction

被引:20
作者
Apinunjarupong, Suthep [1 ]
Lapnirun, Surawoot [1 ]
Theerakulkait, Chockchai [1 ]
机构
[1] Kasetsart Univ, Fac Agroind, Dept Food Sci & Technol, Bangkok 10900, Thailand
关键词
Alkaline; Bromelain; Extraction; Functional properties; Protein concentrate; Rice bran; EMULSIFYING PROPERTIES; ENZYMATIC-HYDROLYSIS; WHEAT GLUTEN; SOLUBILITY; FRACTIONS;
D O I
10.1080/10826060902800858
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Rice bran protein was extracted by using defatted rice bran and water at 1:6 (w/w) and 6% of bromelain at pH 9.0, 50C, 500rpm for 15 and 30mins. The degree of hydrolysis (DH) of rice bran protein extract (RBPE) was 19 and 36.5%, respectively, and their nitrogen solubility was higher than the controls. Rice bran protein concentrate (RBPC) was prepared by spray drying. Emulsion activity of RBPC produced from 19% DH RBPE was increased while emulsion stability index was not significantly different from the control. Foam capacity and rehydration ability of RBPC were greater than the control.
引用
收藏
页码:183 / 193
页数:11
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