| W/O及W/O/W乳液型缓释凝固剂对卤水豆腐品质的影响 |
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| 引用本文： | 郦金龙,程永强,焦翔,朱巧梅,殷丽君.W/O及W/O/W乳液型缓释凝固剂对卤水豆腐品质的影响[J].农业机械学报,2013,44(9):162-168. |
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| 作者姓名： | 郦金龙 程永强 焦翔 朱巧梅 殷丽君 |
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| 作者单位： | 中国农业大学;中国农业大学;北京中绿华夏有机食品认证中心;中国农业大学;中国农业大学 |
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| 基金项目： | 国家自然科学基金资助项目（31171648）;中国农业大学基本科研业务费专项资金资助项目（2012YJ087） |
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| 摘 要： | 以W/O、W/O/W乳状液形式包埋盐卤，制备成具有缓释作用的新型乳液型豆腐凝固剂，应用于豆腐生产。研究发现：乳化型凝固剂可以减缓凝固剂与大豆蛋白的作用强度，改善豆腐凝胶的空间结构，降低凝胶硬度，而保持原有弹性。乳液凝固剂的使用能一定程度上减少豆腐加工过程中蛋白质和大豆异黄酮的物理损失，提高大豆异黄酮保有量。此外，豆腐凝胶亮度与白度均有上升。
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| 关 键 词： | 卤水豆腐 大豆异黄酮 凝固剂 乳液 质构 |
Effect of W/O and W/O/W Controlled-release Emulsion Coagulants on Characteristic of Bittern-solidified Tofu |
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| Li Jinlong,Cheng Yongqiang,Jiao Xiang,Zhu Qiaomei and Yin Lijun.Effect of W/O and W/O/W Controlled-release Emulsion Coagulants on Characteristic of Bittern-solidified Tofu[J].Transactions of the Chinese Society of Agricultural Machinery,2013,44(9):162-168. |
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| Authors: | Li Jinlong Cheng Yongqiang Jiao Xiang Zhu Qiaomei and Yin Lijun |
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| Institution: | China Agricultural University;China Agricultural University;China Organic Food Certification Center;China Agricultural University;China Agricultural University |
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| Abstract: | Water-in-oil (W/O) and water-in-oil-in-water (W/O/W) emulsions with bittern solution as internal aqueous phase were prepared. These emulsion coagulants showed good controlled-release property when used in traditional firm tofu preparation. Compared with the traditional bittern coagulant, emulsion coagulants significantly improved the water content from 70% to the maximum 84% or 79%, as well as increased the yield of tofu gel. In addition, the use of emulsion coagulants modified the tofu gel to be more smooth and homogenous, as well as significantly reduced the hardness of tofu gel while remained the spring and improved the bright. Results also indicated that the loss of protein and soy isoflavones during tofu preparation was decreased, along with a higher yield of soy isoflavones. |
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| Keywords: | Bittern-solidified tofu Soy isoflavones Coagulant Emulsion Texture |
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