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首页> 外文期刊>Journal of Food Science >Preparation and Characterization of Water/Oil/Water Emulsions Stabilized by Polyglycerol Polyricinoleate and Whey Protein Isolate
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Preparation and Characterization of Water/Oil/Water Emulsions Stabilized by Polyglycerol Polyricinoleate and Whey Protein Isolate

机译：聚甘油聚蓖麻油酸酯和乳清分离蛋白稳定的水/油/水乳液的制备与表征

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摘要

In this study we tried to prepare stable waler-in-oil-in-water (W/O/W) emulsions using polyglycerol polyricinoleate (PGPR) as a hydrophobic eimilsifier and whey protein isolate (WPI) as a hydrophilic emulsifier. At first, water-in-oil (W/O) emulsions was prepared, and then 40 wt% of this VV/O emulsion was homogenized with 60 wt% aqueous solution of different WPI contents (2,4, and 6 wt% WPI) using a high-pressure homogenizer (14 and 22 MPa) to produce W/O/W emulsions. The mean size of final W/O/W droplets ranged from 3.3 to 9.9 μm in diameter depending on the concentrations of PGPR and WPI. It was shown that most of the W/O/W droplets were small (<5 μm) in size but a small population of large oil droplets (d > 20 μm) was also occasionally observed. W/O/W emulsions prepared at the homogenization pressure of 22 MPa had a larger mean droplet size than that prepared at 14 MPa, and showed a microstructure consisting of mainly approximately 6 to 7-μm droplets. When a water-soluble dye PTSA as a model ingredient was loaded in the inner water phase, all W/O/W emulsions showed a high encapsulation efficiency of the dye (>90%) in the inner water phase. Even after 2 wk of storage, > 90% of the encapsulated dye still remained in the inner water phase; however, severe droplet aggregation was observed at relatively high PGPR and WPI concentrations.
机译：在这项研究中，我们尝试使用聚甘油聚蓖麻油酸酯（PGPR）作为疏水性乳化剂和乳清蛋白分离物（WPI）作为亲水性乳化剂，制备稳定的水包水包水（W / O / W）乳液。首先，制备油包水（W / O）乳液，然后将40 wt％的VV / O乳液与60 wt％不同WPI含量（2,4和6 wt％WPI）的水溶液均化。 ），使用高压均质机（14和22 MPa）生产W / O / W乳液。最终W / O / W液滴的平均大小取决于PGPR和WPI的浓度，直径范围为3.3到9.9μm。结果表明，大多数W / O / W液滴的尺寸很小（<5μm），但偶尔也观察到少量的大油滴（d> 20μm）。在均质压力为22 MPa的条件下制备的W / O / W乳液的平均液滴尺寸比在14 MPa的情况下更大，并且显示出主要由约6至7μm液滴组成的微观结构。当在内部水相中加入水溶性染料PTSA作为模型成分时，所有W / O / W乳液在内部水相中均显示出较高的染料包封效率（> 90％）。即使在储存2周后，仍有超过90％的包封染料保留在内部水相中。但是，在较高的PGPR和WPI浓度下观察到了严重的液滴聚集。

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  • 来源
    《Journal of Food Science》 |2010年第2期|E116-E125|共10页
  • 作者

    Saehun Mun; Yongdoo Choi; Shin-Joung Rho; Choon-Gil Kang; Chan-Ho Park; Yong-Ro Kim;

  • 作者单位

    Center for Agricultural Biomaterials and Dept. of Biosystems and Biomaterials Science and Engineering, Seoul Natl. Univ., Seoul, 151-742, Korea;

    Molecular Imaging and Therapy Branch, Natl. Cancer Center, Goyang-si, 410-769, Korea;

    Center for Agricultural Biomaterials and Dept. of Biosystems and Biomaterials Science and Engineering, Seoul Natl. Univ., Seoul, 151-742, Korea;

    Ottogi Research Center, Anyang, Korea;

    Ottogi Research Center, Anyang, Korea;

    Center for Agricultural Biomaterials and Dept. of Biosystems and Biomaterials Science and Engineering, Seoul Natl. Univ., Seoul, 151-742, Korea;

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

    PGPR; stabilization; W/O emulsion; W/O/W emulsion; WPI;

    机译：PGPR;稳定W / O乳液;W / O / W乳液;WPI;

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