豆浆中食盐添加量对白豆干质构特性的影响
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(长沙理工大学食品与生物工程学院,湖南 长沙 410114)

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舒媛珂,女,长沙理工大学在读硕士研究生。

通讯作者:

李彦(1970—),女,长沙理工大学副教授,硕士。E-mail: 122511021@qq.com

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湖南省教育厅科学研究重点项目(编号:22A0237)


Effects of the levels of NaCl added in soymilk on texture characteristics of white dried beancurds
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(School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China)

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    摘要:

    目的:探究豆浆中食盐添加量对白豆干质构特性的影响。方法:采用全质构分析、蠕变行为试验、扫描电子显微镜等对基于不同食盐添加量(0~1%)豆浆生产的白豆干质构特性及蛋白质凝胶网络结构进行综合评价。结果:豆浆中食盐的添加使得白豆干蛋白凝胶体系内水分含量显著升高(P<0.05)、其网络结构的致密性以及凝胶结构的强度总体降低,且豆浆中食盐添加量与白豆干得率和水分含量高度正相关(r 为 0.967~0.982),但与白豆干的保水性、凝胶强度、黏聚性、弹性模量等质构特性高度负相关(r为-0.901~-0.994)。结论:在豆浆中添加0.50%~0.75%的食盐可提供白豆干所需咸味,维持豆干良好的质构特性。

    Abstract:

    Objective: This research aimed to understand the effects of different levels of NaCl added in soymilk on textural characteristics of resulted white dried beancurds. Methods: The textural characteristics and protein-gel network structures of dried beancurds produced from soymilk added with different levels of NaCl (0~1%) were fully evaluated through texture profile analysis, creep test, scanning electron microscopy and others. Results: The addition of NaCl in soymilk led to a significant increase (P<0.05) of water held in the protein-gel network of dried beancurds as well as a less compact protein-network structure and overall weaker protein-gel. In addition, the levels of NaCl added in soymilk were highly correlated (r was 0.967~0.982) with the yield and water content of the resulted white dried beancurds, but negatively correlated (r was -0.901~-0.994) with water holding capacity, gel strength, cohesiveness, elastic modulus and other textural properties of dried beancurds. Conclusion: The soymilk added with 0.50%~0.75% of NaCl resulted in dried beancurds with required salty taste and acceptable textural characteristics.

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舒媛珂,黄轶群,俞 健,等.豆浆中食盐添加量对白豆干质构特性的影响[J].食品与机械,2023,39(4):19-25,60.
SHU Yuan-ke, HUANG Yi-qun, YU Jian, et al. Effects of the levels of NaCl added in soymilk on texture characteristics of white dried beancurds[J]. Food & Machinery,2023,39(4):19-25,60.

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  • 收稿日期:2022-12-01
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  • 在线发布日期: 2023-06-05
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