Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (11): 23-29.doi: 10.3969/j.issn.1000-565X.2015.11.004

• Food Science & Technology • Previous Articles     Next Articles

Investigation into Preparation Technology of Epoxidized Soybean Oil via Phase-Transfer Catalysis

Cheng Wei-wei 1 Liu Guo-qin1，2 Liu Xin-qi 1 Wang Xue-de2 Lu Xiao-zhu1    

  1. 1． School of Light Industry and Food Sciences，South China University of Technology，Guangzhou 510640，Guangdong，China; 2． College of Food Science and Technology，Henan University of Technology, Zhengzhou 450001，Henan，China
  • Received:2014-11-27 Revised:2014-12-25 Online:2015-11-25 Published:2015-10-01
  • Contact: 刘国琴(1962-)，女，教授，博士生导师，主要从事油脂与植物蛋白研究． E-mail:guoqin@ scut.edu.cn
  • About author:程威威(1988-)，男，博士生，主要从事油脂营养与健康研究． E-mail: cheng4677@126.com
  • Supported by:
     Supported by the General Program of National Natural Science Foundation of China(31130042 ,31271885，31471677)，the National Key Technology Ｒesearch and Development Program of the Ministry of Science and Technology of China during the “12th Five-Year Plan”(2012BAD37B01) and the National High-Tech Ｒ＆D Program of China (863 Program) (2013AA102103)

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Abstract: At present，the industrial application of per-acid to the production of epoxidized soybean oil ( ESO) can lead to serious pollution，so it is necessary to explore the preparation technologies of green epxidized soybean oil． In the investigation，by taking H2O2 as the oxygen source，a mathematical model on the basis of the response surface methodology was constructed to optimize the preparation technology of ESO obtained through phase-transfer catalysis． Then，the prepared ESO was characterized by means of FT-IＲ，and its physical and chemical property and thermal stability were also analyzed． The results show that，under the optimal conditions，namely，a mass ratio of H2O2，catalyst，PEG and soybean oil of 87∶29∶30∶100，a temperature of 55℃ and a reaction time of 3. 5 h， the predicated epoxy value of ESO，which is 6. 48% ，is close to the tested value of 6. 40% ，which means that the proposed model on the basis of the response surface methodology can be used to guide the preparation of ESO． The prepared ESO with mild reaction conditions and short reaction time meets the national industry standard，and it is of a better thermal stability，specifically，its epoxy value decreases only by 0. 48% with a processing time of 3. 0 h at 177℃ ． The results of IＲ confirm that the unsaturated double bonds are converted into the epoxy bonds after the selective oxidation of soybean oil．

Key words: soybean oil, epoxidation, preparation technology, phase-transfer catalysis, response surface methodology