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Progress in the application of lecithins in water-in-oil emulsions

文献类型： 外文期刊

作者： Wang, Mengzhu 1 ; Yan, Weiqiang 2 ; Zhou, Yulin 1 ; Fan, Liuping 1 ; Liu, Yuanfa 1 ; Li, Jinwei 1 ;

作者机构： 1.Jiangnan Univ, State Key Lab Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China

2.Shanghai Acad Agr Sci, Inst Crop Breeding & Cultivat, Shanghai 201403, Peoples R China

关键词： Lecithins; Water-in-oil emulsions; Emulsifying ability; Spontaneous curvature; Phospholipid composition; Coemulsifiers

期刊名称：TRENDS IN FOOD SCIENCE & TECHNOLOGY （ 影响因子：12.563； 五年影响因子：14.466 ）

ISSN： 0924-2244

年卷期： 2021 年 118 卷

页码：

收录情况： SCI

摘要： Background: Long-term stability of water-in-oil (W/O) emulsions remains an urgent problem that limits their further application in the food industry. Moreover, the healthier products are increasingly required, which has inspired the entire or partial replacement of synthetic or semisynthetic emulsifiers in food products with natural amphiphilic lecithins. Therefore, it is essential to develop high-quality lecithins and better understand the factors that affect the emulsifying ability of lecithins in W/O emulsions. Scope and approach: This review presents the effects of the oil phase chain length, temperature and phospholipid composition on the spontaneous curvature of phospholipid monolayers, which determines the emulsifying ability of lecithins. The changes in phospholipid composition varied with different raw materials, and degumming methods and physical fractionation (deoiling methods and ethanol fractionation) were further described. Effects of proteins, polysaccharides, and inorganic salts in water as well as zein particles and polyglycerol polyricinoleate (PGPR) as coemulsifiers on the emulsifying ability of lecithins in W/O emulsions were analyzed and illustrated to provide new insights on the mechanism. Key findings and conclusions: Current studies have highlighted the entire or partial replacement of PGPR using lecithins or phosphatidylcholine-depleted lecithins in W/O emulsions and W/O/W double emulsions. Whey protein isolates or polysaccharides help to prevent coalescence for long-term stability. Furthermore, rapeseed and camelina seed using enzymatic and acid degumming respectively, were proposed to enrich phosphatidylethanolamine or phosphatidylinositol in lecithins for W/O emulsions. The present review may be helpful for selecting effective lecithins in W/O emulsions to promote practical application in food products.

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