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Emulsifying properties of high methoxyl pectins in binary systems of water-ethanol.
Carbohydrate Polymers ( IF 10.7 ) Pub Date : 2019-10-01 , DOI: 10.1016/j.carbpol.2019.115420 Wen-Xin Jiang 1 , Jun-Ru Qi 1 , Ying-Xing Huang 1 , Yue Zhang 1 , Xiao-Quan Yang 1
Carbohydrate Polymers ( IF 10.7 ) Pub Date : 2019-10-01 , DOI: 10.1016/j.carbpol.2019.115420 Wen-Xin Jiang 1 , Jun-Ru Qi 1 , Ying-Xing Huang 1 , Yue Zhang 1 , Xiao-Quan Yang 1
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Pectin is widely distributed in plant cell wall, most of which have limited emulsifying properties. Ethanol could alter the solubility of pectin, and affect its emulsifying properties. No creaming and breaking of emulsion appeared in 21% (v/v) ethanol contained emulsion. This project investigated the influence of ethanol (0%-35%, v/v) on conformation and emulsifying properties of pectin. Results shown that ethanol could reduce the helix conformation and zeta potential of pectin chain, which leading to compact conformation and enhanced interaction among pectin molecules. Although emulsion droplet diameter increased with ethanol content, the most stable emulsion was found in 21% (v/v) ethanol. CLSM also indicated over-aggregated pectin have a poor adsorption capacity on the interface of O/W. All results manifested the emulsifying properties of pectin can be improved by 21% (v/v) ethanol. This study provides a new strategy to improve the emulsifying property of pectin by changing its conformation.
中文翻译：
高甲氧基果胶在水-乙醇二元体系中的乳化性能。
果胶广泛分布在植物细胞壁中，其中大多数具有有限的乳化特性。乙醇会改变果胶的溶解度，并影响其乳化性能。在含21％（v / v）乙醇的乳液中没有乳化和破乳现象。该项目研究了乙醇（0％-35％，v / v）对果胶构象和乳化性能的影响。结果表明，乙醇可以降低果胶链的螺旋构象和ζ电势，从而导致紧密构象并增强果胶分子之间的相互作用。尽管乳剂液滴直径随乙醇含量的增加而增加，但在21％（v / v）乙醇中发现了最稳定的乳剂。CLSM还指出，过度聚集的果胶在O / W界面上的吸附能力较差。所有结果表明，果胶的乳化性能可以通过21％（v / v）的乙醇改善。本研究为改变果胶的构象提供了改善果胶乳化性能的新策略。
更新日期：2019-10-02
中文翻译：
高甲氧基果胶在水-乙醇二元体系中的乳化性能。
果胶广泛分布在植物细胞壁中，其中大多数具有有限的乳化特性。乙醇会改变果胶的溶解度，并影响其乳化性能。在含21％（v / v）乙醇的乳液中没有乳化和破乳现象。该项目研究了乙醇（0％-35％，v / v）对果胶构象和乳化性能的影响。结果表明，乙醇可以降低果胶链的螺旋构象和ζ电势，从而导致紧密构象并增强果胶分子之间的相互作用。尽管乳剂液滴直径随乙醇含量的增加而增加，但在21％（v / v）乙醇中发现了最稳定的乳剂。CLSM还指出，过度聚集的果胶在O / W界面上的吸附能力较差。所有结果表明，果胶的乳化性能可以通过21％（v / v）的乙醇改善。本研究为改变果胶的构象提供了改善果胶乳化性能的新策略。
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