食品科学 ›› 2012, Vol. 33 ›› Issue (16): 50-53.

• 工艺技术 • 上一篇    下一篇

Fe2(SO4)3/γ-Al2O3 固体酸催化剂制备条件的优化

王大为,浦静舒,赵 玮   

  1. 吉林农业大学食品科学与工程学院
  • 收稿日期:2012-01-03 修回日期:2012-07-11 出版日期:2012-08-25 发布日期:2012-09-07
  • 通讯作者: 王大为 E-mail:xcpyfzx@163.com
  • 基金资助:

    稻谷高值化利用关键技术研究与示范

Optimization of Preparation Process for Fe2(SO4)3/γ-Al2O3 Solid Acid Catalyst for Hydrolysis of Phytin to Inositol  

  • Received:2012-01-03 Revised:2012-07-11 Online:2012-08-25 Published:2012-09-07

摘要: 采用浸渍法制备Fe2(SO4)3/γ-Al2O3固体酸催化剂,于常压下利用Fe2(SO4)3/γ-Al2O3催化水解菲丁制备肌醇,并以肌醇收率表征催化剂活性强度。考察浸渍质量浓度、浸渍时间、焙烤温度对催化剂活性的影响,采用响应面法进行优化,得到制备Fe2(SO4)3/γ-Al2O3最佳条件:浸渍质量浓度50mg/mL、浸渍时间4h、焙烧温度436℃,在此条件下制备的Fe2(SO4)3/γ-Al2O3固体酸催化剂催化水解菲丁,肌醇收率为14.18%,菲丁水解效率为70.9%。

关键词: 肌醇, 常压水解, 催化剂

Abstract: Solid acid catalyst Fe2(SO4)3/γ-Al2O3 was prepared by maceration method and used to hydrolyze phytin to inositol at atmospheric pressure. Inositol yield was calculated to evaluated the activity of the prepared catalyst. The effects of maceration solvent concentration, maceration time and baking temperature on catalyst activity were explored. The optimal conditions for preparing Fe2(SO4)3/γ-Al2O3 were determined by response surface methodology (RSM) to be maceration solvent concentration of 50 mg/mL, maceration time of 4 h and baking temperature of 436 ℃. Under these conditions, Fe2(SO4)3/γ-Al2O3 was obtained and used to successfully hydrolyze phytin to achieve an inositol yield of 14.18% and a hydrolysis efficiency of 70.9%.

Key words: inositol, atmospheric hydrolysis, catalyst

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