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DHA油乳状液制备研究
引用本文:祝艳梅,张连富.DHA油乳状液制备研究[J].食品工业科技,2010(3).
作者姓名:祝艳梅  张连富
作者单位:江南大学食品学院,江苏,无锡,214122
摘    要:采用高压均质法制备DHA乳液,选择经典的亲水亲油平衡(HLB)法作为乳化剂选择的依据,首先确定体系乳化需要的HLB值为11.3,然后选择几种常见的乳化剂进行复配,确定出较好复配乳化剂为:分子蒸馏单甘酯(42%)+Tween20(58%)。乳化剂最适添加量为1.2%。通过正交实验和单因素实验对乳状液制备最佳工艺条件进行优化,结论为:初乳制备的最佳工艺条件是乳化温度为60℃,搅拌强度为13000r/min,乳化时间为20min,选择均质压力为60MPa。

关 键 词:乳状液  DHA  乳化剂  均质  

Study on preparation of DHA emulsion
ZHU Yan-mei,ZHANG Lian-fu.Study on preparation of DHA emulsion[J].Science and Technology of Food Industry,2010(3).
Authors:ZHU Yan-mei  ZHANG Lian-fu
Affiliation:ZHU Yan-mei,ZHANG Lian-fu (School of Food Science , Technology,Jiangnan University,Wuxi 214122,China)
Abstract:DHA emulsions were prepared through high homogenization.Hydrophile-Lipophile Balance(HLB) ,one of the most classic methods for choosing emulsifiers,was applied in this study.Firstly,the HLB value of the emulsion was assured as 11.3.Furthermore, a combination of some common emulsifiers was selected as of the emulsifying complex which included Distilled Monoglyceride and Tween 20,the ratio of these two compounds was 21:29.The optimal dosage of the emulsifying complex was 1.2g/100g.The optimal technology of DHA emulsion producing was determined according to single-factor test and orthogonal test, which was described below: emulsifying temperature,60℃; emulsifying intensity,13000r/min; processing period,20min; homogenizing pressure,60MPa.
Keywords:emulsion  DHA  emulsifier  homogenization  
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