微波辅助浸提法从脱脂米糠中提取菲汀的工艺优化  

Process optimization of extracting Phytin from defatted rice bran by microwave-assisted extraction method

作　　者：肇立春[1] 白岩[1] 李哲[1] 

机构地区：[1]沈阳师范大学粮食学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2013年第2期207-209,共3页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省教育厅自然科学基金资助项目(L2010521);沈阳师范大学重大原创项目([2012-08])

摘　　要：在菲汀(植酸钙)的生产工艺中,酸浸工段采用常温浸提,耗时长、效率低,产量低。为了改善常规菲汀生产的工艺与条件,研究了微波辅助稀酸浸提工艺,并实验研究了浸提工段的最佳反应条件。实验表明,采用微波辅助酸浸替代传统工艺的常温酸浸,可以明显提高菲汀溶出率、溶出速度,降低浸提时间,缩短生产周期。首先通过单因素实验,确定酸浸工段的微波温度、微波功率、微波辐射时间3个参数的拐点水平值,再依据拐点水平值确立正交试验方案,通过三因素三水平正交试验找寻最佳浸提条件。同时,对酸浸工段的添加剂、酸的种类、中和工段的中和剂种类、加入顺序与PH值的控制等问题均进行了有效的实验研究,对微波法的生产工艺进行了完整优化。In the production process of Phytin,the extraction of acid leaching process is under a normal temperature with long time,low efficiency and low yield.To improve the technology and condition in producing phytin,we studied the microwave-assisted dilute acid extraction process and the optimal reaction conditions.Through the experiment,the microwave-assisted acid leaching can improve largely the dissolution rate,dissolution speed and reduce the extraction time.In this paper,we first determined the inflexion value of microwave temperature,microwave efficiency and microwave irradiation time through single factor experiment.Meanwhile,we looked for the process conditions that optimize the extraction through three factors three levels orthogonal test.We also carried out effective experimental research on the problem of additives,types of acid,types of neutralizer,sequence of adding and the PH value.Finally,we optimized the production process of microwave method.

关 键 词：菲汀 微波 工艺 

分 类 号：TS210.4[轻工技术与工程—粮食、油脂及植物蛋白工程]