食品科学 ›› 2020, Vol. 41 ›› Issue (20): 41-45.doi: 10.7506/spkx1002-6630-20190822-234

• 食品化学 • 上一篇    下一篇

分子蒸馏法脱除油脂中3-氯丙醇酯和缩水甘油酯

黄会娜,刘玉兰,杨争光,王戬东,王月华   

  1. (1.河南工业大学粮油食品学院,河南 郑州 450001;2.河北玉星食品有限公司,河北 邢台 055550;3.山东三星玉米产业科技有限公司,山东 邹平 256209)
  • 出版日期:2020-10-25 发布日期:2020-10-23
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2016YFD0401405)

Removal of 3-Monochloro-1,2-propanediol Esters and Glycidyl Esters from Corn Oil by Molecular Distillation

HUANG Huina, LIU Yulan, YANG Zhengguang, WANG Jiandong, WANG Yuehua   

  1. (1. College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China;2. Hebei Yuxing Food Co. Ltd., Xingtai 055550, China;3. Shandong Sanxing Corn Industry Technology Co. Ltd., Zouping 256209, China)
  • Online:2020-10-25 Published:2020-10-23

摘要: 利用分子蒸馏法脱除玉米油中的3-氯丙醇(3-monochloro-1,2-propanediol,3-MCPD)酯和缩水甘油酯(glycidyl esters,GEs)。结果显示,在蒸馏温度220 ℃、刮膜转速230 r/min、进料速率50 滴/min的条件下,玉米油中GEs的脱除率为85.0%,其含量从5.909 mg/kg降低至0.885 mg/kg,达到欧盟规定食用植物油中GEs≤1 mg/kg的限量要求;3-MCPD酯脱除率为79.3%,其含量从2.686 mg/kg降低至0.556 mg/kg。分子蒸馏后油脂中VE含量从407.8 mg/kg降低至291.3 mg/kg,甾醇含量从912.2 mg/100 g降低至563.7 mg/100 g,损失率分别为28.6%、38.2%。分子蒸馏可以作为脱除油脂中3-MCPD酯和GEs的有效可靠方法。

关键词: 食用植物油;分子蒸馏;3-氯丙醇酯;缩水甘油酯;脱除率

Abstract: 3-Monochloro-1,2-propanediol (3-MCPD) esters and glycidyl esters (GEs) were removed from corn oil by molecular distillation. The results showed that under the conditions of molecular distillation temperature of 220 ℃, scraping speed of 230 r/min and feeding speed of 50 drop/min, the removal rate of GEs was 85.0%, and its content was reduced from 5.909 to 0.885 mg/kg, which was lower than the EU maximum limit of 1 mg/kg of GE for edible oils. The removal rate of 3-MCPD ester was 79.3%, and its content was reduced from 2.686 to 0.556 mg/kg. After molecular distillation, the content of sterols and VE decreased by 38.2% (from 912.2 to 563.7 mg/100 g) and 28.6% (from 407.8 to 291.3 mg/100 g). These results show that molecular distillation can be used as an effective and reliable method for removing 3-MCPD esters and GEs from edible oils.

Key words: edible vegetable oils; molecular distillation; 3-monochloro-1,2-propanediol esters; glycidyl esters; removal rate

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