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Extrinsic factors influencing nano-/micro-particle formation in pure soy glycinin solution via heating

机译：通过加热影响纯大豆大豆球蛋白溶液中纳米/微粒形成的外在因素

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摘要

Soy glycinin could self-assemble into nanoparticles, microgels or hollow microcapsules depending on the extrinsic conditions. This research compares ion- and/or pH-induced particle formation through simple heat treatment of soy glycinin (80 degrees C, 5 min and 600 r/min), and the difference of zeta potential, particle size, hydrophobicity and their relevance to particle morphology were investigated. The results showed that only a combination of monovalent cation (K+ or Na+) and monovalent anion (Cl-) promoted the formation of hollow microcapsules with coexistence of microgels (protein solution pH: 7.2), whereas a reduce in pH inhibited hollow microcapsule formation upon heating, either in the presence of electrolytes or not. Strategies for size reduction of microparticles were also studied, either by increasing the shear stress during heating or through ultrasound pretreatment of soy glycinin. In general, native soy glycinin was favorable for the formation of hollow microcapsules than the partially denatured, and the hollow microcapsule formation was highly sensitive to the extrinsic conditions.
机译：大豆大豆球蛋白可以根据外部条件自组装成纳米颗粒，微凝胶或中空微胶囊。这项研究比较了大豆大豆球蛋白的简单热处理（80℃，5分钟和600 r / min）的离子和/或pH诱导的颗粒形成，以及zeta电位，颗粒大小，疏水性及其与颗粒的相关性的差异形态进行了调查。结果表明，仅单价阳离子（K +或Na +）和单价阴离子（Cl-）的组合可促进中空微胶囊的形成并与微凝胶共存（蛋白质溶液pH：7.2），而pH降低则抑制中空微胶囊的形成。加热，无论是否存在电解质。还研究了通过减小​​加热过程中的剪切应力或通过大豆大豆球蛋白的超声预处理来减小微粒尺寸的策略。通常，天然大豆大豆球蛋白比部分变性的大豆大豆球蛋白更有利于空心微胶囊的形成，并且空心微胶囊的形成对外部条件高度敏感。

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  • 来源
    《Food Hydrocolloids》 |2020年第6期|105649.1-105649.9|共9页
  • 作者

  • 作者单位

    Zhejiang Univ Coll Biosyst Engn & Food Sci Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Biosyst Engn & Food Sci Hangzhou 310058 Zhejiang Peoples R China|Fuli Inst Food Sci Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Biosyst Engn & Food Sci Hangzhou 310058 Zhejiang Peoples R China|Fuli Inst Food Sci Hangzhou 310058 Zhejiang Peoples R China|Zhejiang Univ Ningbo Res Inst Ningbo 315100 Zhejiang Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Extrinsic factors; Ion strength and species; Soy glycinin; Hollow microcapsule; Nano-/micro-gels;

    机译：外在因素;离子强度和种类;大豆大豆球蛋白;中空微胶囊;纳米/微凝胶;

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