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Emulsifying and emulsion stabilization mechanism of pectin from Nicandra physaloides (Linn.) Gaertn seeds: Comparison with apple and citrus pectin

文献类型： 外文期刊

作者： Liu, Hongyi 1 ; Deng, Lizhen 1 ; Dai, Taotao 1 ; Chen, Jun 1 ; Liu, Wei 1 ; Liu, Chengmei 1 ; Chen, Mingshun 1 ; Liang, Ruihong 1 ;

作者机构： 1.Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang AH 330047, Peoples R China

2.Agrofood Sci & Technol Res Inst, Guangxi Acad Agr Sci, Nanning, Peoples R China

关键词： Pectin; Emulsifying properties; Emulsion stabilization; Structure-dependence; Nicandra physaloides (Linn; ) Gaertn seeds

期刊名称：FOOD HYDROCOLLOIDS （ 影响因子：11.504； 五年影响因子：11.357 ）

ISSN： 0268-005X

年卷期： 2022 年 130 卷

页码：

收录情况： SCI

摘要： The emulsifying and emulsion stabilization mechanism of three kinds of pectin (Nicandra physaloides (Linn.) Gaertn seeds pectin-NP, apple pectin-AP, and citrus pectin-CP) were compared in terms of emulsions system, interface layer and pectin structure. The results showed the emulsifying properties of NP was superior to AP and CP, which attributed to lower interfacial tension (~15.57 mN/m) and better long-term stability to prepared emulsion. The long-term stability of NP emulsion ascribed to the higher emulsion viscosity, more uniform droplet size distribution, stronger electrostatic repulsion, and thicker interfacial layer. Structurally, the emulsifying activity of NP was mainly provided by acetyl and methyl groups, and the emulsifying stabilization was provided by the neutral monosaccharide side chains and ionized carboxyl groups. Therefore, the protein in pectin was not essential for the stabilization of oil-water interface, and the carbohydrate components played a crucial role in when especially lack of protein. Consider that the emulsifying properties of NP were independent of protein, it may be a potential natural emulsifier in resisting acid, ions, and heat.

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