食品科学 ›› 2013, Vol. 34 ›› Issue (10): 1-5.doi: 10.7506/spkx1002-6630-201310001

• 工艺技术 •    下一篇

大豆油凹凸棒脱色及其返色的研究

张佳宁,孙 贺,胡立志,于殿宇   

  1. 东北农业大学食品学院,黑龙江 哈尔滨 150030
  • 收稿日期:2012-12-12 修回日期:2013-04-01 出版日期:2013-05-25 发布日期:2013-05-07
  • 通讯作者: 于殿宇 E-mail:dyyu2000@yahoo.com.cn
  • 基金资助:

    国家十二五科技支撑计划:大豆油加工关键技术和装备研究与示范

Decolorization of Soybean Oil by Attapulgite Adsorbent and Its Color Reversion

ZHANG Jia-ning,SUN He,HU Li-zhi,YU Dian-yu   

  1. College of Food Science, Northeast Agricultural University, Harbin 150030, China
  • Received:2012-12-12 Revised:2013-04-01 Online:2013-05-25 Published:2013-05-07

摘要:

采用凹凸棒作为吸附剂对大豆毛油进行脱色,以脱色率为指标,通过单因素试验和响应面分析对脱色条件进行优化,得到的最优脱色条件为脱色时间32min、脱色温度110℃、搅拌速率250r/min、脱色剂(凹凸棒)用量3%,此条件下,凹凸棒脱色大豆油的脱色率为71.83%。将凹凸棒脱色后的大豆油与普通脱色大豆油分别进行一定时间的105℃加热,对二者的色泽红值进行比较,结果显示,以凹凸棒作为吸附剂的脱色油脂较为稳定,不易返色。

关键词: 大豆油, 凹凸棒, 脱色, 返色

Abstract:

The purpose of the present study was to optimize the decolorization of soybean oil using single-factor design
and response surface methodology and to compare the color reversion of soybean oil treated with attapulgite clay with
conventional decolorized soybean oil after heating at 105 ℃. The optimal decolorization conditions were 32 min, 110 ℃,
250 r/min of stirring speed and 3% of decolorizing agent. Under these conditions, the decolorization ratio of soybean oil was
71.83%. Comparative results showed that the soybean oil treated with attapulgite clay was more stable and more resistant
against color reversion.

Key words: soybean oil, attapulgite adsorbent, bleach, color reversion

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