Study on Preparing Conjugated Linoleic Acid from Corn Germ Oil by Microwave
The optimal craft of preparing conjugated linoleic acid from corn germ oil by dint of microwave method was studied. Microwave power, microwave mode of action, the amount of catalyst and solvent were selected for single-factor-experiment Then, based on the single-factor-experiment, the catalyst and solvent amount, and microwave function time were chosen for orthogonal experiment so as to determine the optimal craft of preparing CLA from corn germ oil. UV absorption spectra and infrared absorption spectrum were used to analyses the structural features of natural corn germ oil and CLA. The optimal preparation condition was as follow: the catalyst was 0.6 times heavier than oil, solvent was 3 times heavier than oil weight, microwave worked for ten minutes. Under the optimal condition, CLA was 563％ and conversion rate was 99.47％. The results indicated that non-conjugated double bonds of linoleic acid can be isomerized and changed into conjugated double bonds under the conditions of microwave irradiation. The study provided new way for the preparation of CLA.
Microwave Corn germ oil Preparation Conjugated linoieic acid
Zhenqiang WANG Sen SHEN
Department of Environmental and Chemical Engineering Yellow River Conservancy Technical Institute,Kaifeng 475003, China
国际会议
哈尔滨
英文
606-608
2012-06-16（万方平台首次上网日期，不代表论文的发表时间）