摘要
本文确立了简单有效的植酸测定方法，通过对油菜籽饼粕中植酸的提取量有影响的相关因素筛选，确定关键影响因素，并通过响应曲面法优化了植酸最佳提取工艺：在提取温度为44，11～55．23℃时，只需在pH为9．70～10．96，料液比为21，87～25．74g／mL的条件下，油菜籽饼粕植酸提取量即可达到62．367mg／g（本实验中心点预测值）以上的提取量。对二次多项式数学模型解逆矩阵得知：在pH、提取温度和料液比分别为10．96、56．07℃和23．96g／mL时，油莱籽饼粕植酸提取量可达到最大预测值为62．716mg／g。
A method for extracting phytic acid from rapeseed meal was developed. By regression analysis,pH, temperature, and substrate/liquid rate were found to be important factors for the extraction. Response surface methodology （RSM） was used to optimize the above critical internal factors. The obtained optimal parameters are as follows： pH 9.70 - 10.96, temperature 44.11 - 55.23 ℃, and substrate/liquid rate 21.87 - 25.74 g/mL. The phytic acid yield under the condition is higher than the predicted value 62. 367mg/g. For obtain the maximum predicted yield 62. 716mg/g, the following extraction parameters are obtained by calculation from math models： pH 10.96, temperature 56.07℃, and substrate/liquid rate 23.96g/mL. The experimental data under various conditions validate the theoretical values.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2006年第6期107-112,共6页
Journal of the Chinese Cereals and Oils Association
关键词
菜籽粕
植酸
提取
rapeseed meal, phytic acid, extraction
