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首页> 外文期刊>Journal of food engineering >Stability and rheology of water-in-oil-in-water multiple emulsions made with protein-polysaccharide soluble complexes
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Stability and rheology of water-in-oil-in-water multiple emulsions made with protein-polysaccharide soluble complexes

机译：蛋白多糖可溶性复合物制备的水包油包水型多重乳液的稳定性和流变性

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摘要

The morphology, stability, and Theological properties of water-in-oil-in-water (W_1/O/W_2) multiple emulsions (ME) stabilized by whey protein concentrate (W)-carboxymethylcellulose (C) soluble complexes (SC_(W/C)) were evaluated. The interaction pH values (pH_i) to generate SC_(W/C) were established through zeta potential and turbidity determinations. Six ME variations were prepared using a constant weight ratio (WR) between W and C of 3:1 (where maximum interaction occurred) and by varying the way in which the biopolymers were adsorbed at the interface (layer-by-layer, LL, or pre-formed complex, PF) and pH_i (3.7, 4.0 and 4.3). The ME initial volume-surface diameter (D3.2) of the oil droplets ranged from 2.4 to 3.2 μm, which on turn contained numerous flocculated water droplets. Higher viscoelastic moduli values (G' and G"), more pronounced shear thinning behaviour and smaller changes in droplet size with storage time were displayed by ME made with a pH_i value of 4.3, WR_(3;1), and LL biopolymers adsorption technique.
机译：乳清蛋白浓缩物（W）-羧甲基纤维素（C）可溶性复合物（SC_（W / C））进行了评估。通过测定ζ电势和浊度来确定产生SC_（W / C）的相互作用pH值（pH_i）。使用W与C之间的恒定重量比（WR）为3：1（发生最大相互作用）并通过改变生物聚合物在界面上的吸附方式（逐层，LL，或预先形成的复合物（PF）和pH_i（3.7、4.0和4.3）。油滴的ME初始体积表面直径（D3.2）在2.4至3.2μm之间，进而包含许多絮凝的水滴。用pH_i值为4.3的ME，WR_（3; 1）和LL生物聚合物吸附技术制备的ME显示出更高的粘弹性模量值（G'和G“），更明显的剪切稀化行为以及液滴尺寸随存储时间的变化较小。

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  • 来源
    《Journal of food engineering》 |2013年第2期|181-187|共7页
  • 作者

    N.Y. Hernandez-Marin; C. Lobato-Calleros; E.J. Vernon-Carter;

  • 作者单位

    Departamento de Biotecnologia, Universidad Autonoma Metropolitana-lztapalapa, San Rafael Atlixco 186, Vicentina, Mexico, D.F. 09340, Mexico;

    Departamento de Preparatoria Agricola, Universidad Autdnoma Chapingo, Km. 38.5, Carretera Mexico-Texcoco, 56230 Texcoco, Mexico;

    Departamento de Ingenieria de Procesos e Hidraulica, Universidad Autdnoma Metropolitana-lztapalapa, San Rafael Atlixco 186, Vicentina, Mexico, D.F. 09340, Mexico;

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

    Multiple emulsions; Carboxymethylcellulose; Whey protein concentrate; Soluble complexes; Rheology;

    机译：多种乳液;羧甲基纤维素;浓缩乳清蛋白;可溶性配合物;流变学;

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