响应面试验优化玉米油冷冻吸附法脱皂工艺

doi:10.7506/spkx1002-6630-201610016

食品科学

响应面试验优化玉米油冷冻吸附法脱皂工艺

魏贞伟1，许多现2，任悦2，李中宾2，王俊国1,*，于殿宇2,*

1.吉林工商学院粮油食品深加工吉林省高校重点实验室，吉林长春 130507；
2.东北农业大学食品学院，黑龙江哈尔滨 150030

出版日期:2016-05-25 发布日期:2016-05-18

Optimization of Adsorption at Freezing Temperature for Reduced Soap Content in Corn Oil by Response Surface Methodology

WEI Zhenwei1, XU Duoxian2, REN Yue2, LI Zhongbin2, WANG Junguo1,*, YU Dianyu2,*

1. Key Laboratory of Grain and Oil Processing of Jilin Province, Jilin Business and Technology College, Changchun 130507, China;
2. College of Food Science, Northeast Agricultural University, Harbin 150030, China

Online:2016-05-25 Published:2016-05-18

摘要/Abstract

摘要：

对玉米油冷冻吸附法脱皂工艺进行研究，考察脱胶脱酸玉米油含皂量、含水量、硅藻土添加量、搅拌速率和养晶时间对冷冻吸附法脱皂后清油中残皂量的影响。通过单因素试验和响应面优化确定冷冻吸附脱皂的最佳工艺条件为：含皂量321 mg/kg、含水量0.4%、硅藻土添加量0.4%、搅拌速率12 r/min、养晶时间27 h。在此条件下，清油中的残皂量为23.1 mg/kg，脱皂率为92.8%。对冷冻吸附法脱皂工艺和常规水洗工艺的清油品质进行对比，结果表明，这两种方法脱皂的效果相当，但冷冻吸附脱皂不经过水洗过程，无废水排放，符合节能环保的工艺要求，并且利用冷冻吸附法脱皂能够完成前脱蜡的目的，简化了加工工艺。

关键词: 玉米油, 冷冻吸附, 脱皂率, 残皂量, 无废水

Abstract:

This study was focused on reducing the soap content in corn oil by adsorption at freezing temperature. The effect
of the soap content and water content in degummed and deacidified corn oil, the addition of different amounts of diatomite
to the oil, stirring speed and crystal growing time on the soap residue after adsorption was examined. Using single factor
experiments and response surface methodology, the optimal process conditions for removing soap from corn oil were
determined as follows: addition of 0.4% diatomite to crude corn oil containing 321 mg/kg soap and 0.4% moisture, stirring
at 12 r/min, and 27 h crystal growth. Under these conditions, the residual soap in the oil was 23.1 mg/kg, and 92.8% of
the initial concentration was removed. The freeze-adsorption method was similarly effective as the conventional washing
process in reducing the soap content as indicated by the comparison of oil quality. On the other hand, the new method did
not need washing or drying. In addition, the method enabled pre-dewaxing and streamlined the processing steps. Without
producing sewage, it accomplished the purpose of energy conservation and environmental protection.

Key words: corn oil, freeze adsorption, percentage removal of soap, soap residue, without producing sewage

中图分类号:

TS224.6

魏贞伟，许多现，任悦，李中宾，王俊国，于殿宇. 响应面试验优化玉米油冷冻吸附法脱皂工艺[J]. 食品科学, doi: 10.7506/spkx1002-6630-201610016.

WEI Zhenwei, XU Duoxian, REN Yue, LI Zhongbin, WANG Junguo, YU Dianyu. Optimization of Adsorption at Freezing Temperature for Reduced Soap Content in Corn Oil by Response Surface Methodology[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201610016.

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响应面试验优化玉米油冷冻吸附法脱皂工艺

Optimization of Adsorption at Freezing Temperature for Reduced Soap Content in Corn Oil by Response Surface Methodology

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