食品科学 ›› 2009, Vol. 30 ›› Issue (16): 89-93.doi: 10.7506/spkx1002-6630-200916014

• 工艺技术 • 上一篇    下一篇

无毒食品防腐剂丙酸钙的制备

高 新1,杨德玉2,王小刚1,李 峰1,梅笑冰1,范 峥1   

  1. 1.西北大学化工学院 2.西北大学化学与材料科学学院
  • 收稿日期:2008-07-31 修回日期:2009-06-16 出版日期:2009-08-15 发布日期:2010-12-29
  • 通讯作者: 高新 E-mail:gaoxin@nwu.edu.cn

Preparation of A Food-grade Preservative, Calcium Propionate

GAO Xin1,YANG De-yu2,WANG Xiao-gang1,LI Feng1,MEI Xiao-bing1,FAN Zheng1   

  1. 1. School of Chemical Engineering, Northwest University, Xi'an 710069, China;
    2. College of Chemistry and Material Science, Northwest University, Xi'an 710069, China
  • Received:2008-07-31 Revised:2009-06-16 Online:2009-08-15 Published:2010-12-29
  • Contact: GAO Xin E-mail:gaoxin@nwu.edu.cn

摘要:

以牡蛎壳为原料,采用常温常压直接法制备无毒食品防腐剂丙酸钙。在对水壳比、壳酸比、反应时间、中和时间等单因素试验的基础上,利用响应面分析法(response surface method,RSM)对影响丙酸钙产品纯度的工艺条件进行优化研究。结果表明,最优条件为牡蛎壳粉粒径为0.149mm、水壳比(水与壳粉质量比)16.7、壳酸比(壳粉与丙酸质量比)1.08、常温反应172min,反应后调节pH7~8、中和时间38min,进行验证实验,丙酸钙的含量达到99.61%。

关键词: 牡蛎壳, 丙酸钙, 响应面分析法

Abstract:

A new technology for producing calcium propionate from oyster shell under normal pressure and temperature was studied. Based on the single factor tests of water/shell ratio, shell-acid ratio, reaction time and neutralization time, the optimum production conditions were determined by response surface methodology (RSM) as follows: particle diameter of oyster shell 0.125 -0.160 mm, water/shell ratio 16.7, shell/acid ratio 1.08, reaction time under normal temperature 172 min, pH of solution after reaction adjusted to 7-8, and neutralization time 38 min. The verification test showed that the content of calcium propionate reached 99.61%.

Key words: oyster shell, calcium propionate, response surface methodology

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