食品科学 ›› 2011, Vol. 32 ›› Issue (1 ): 70-73.doi: 10.7506/spkx1002-6630-201101017

• 基础研究 • 上一篇    下一篇

腐乳发酵过程中化学组分与质构的变化

周 荧,潘思轶*   

  1. 华中农业大学食品科技学院
  • 收稿日期:2010-01-29 修回日期:2010-12-15 出版日期:2011-01-15 发布日期:2010-12-28
  • 通讯作者: 潘思轶 E-mail:pansiyi@mail.hzau.edu.cn

Changes in Chemical Composition and Texture of Sufu (Fermented Tofu) during Processing

ZHOU Ying,PAN Si-yi*   

  1. College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2010-01-29 Revised:2010-12-15 Online:2011-01-15 Published:2010-12-28
  • Contact: PAN Si-yi E-mail:pansiyi@mail.hzau.edu.cn

摘要:

研究腐乳发酵过程中化学组分含量和质构参数的变化。结果表明:在腐乳发酵过程中,蛋白质与脂肪含量逐步降低,pH 值先升高后降低,游离氨基酸态氮与游离脂肪酸含量逐步升高;腐乳低食盐含量下的化学组分含量均较高,且腐乳成熟时间较短。在腐乳发酵过程中,样品硬度先增大后减小,黏着性逐渐升高,弹性逐渐减小;腐乳成熟后硬度和弹性均变化不大;高盐含量下腐乳的硬度和弹性较大、黏着性较小。

关键词: 腐乳, 化学组分, 质构, 食盐

Abstract:

In this experiment, we studied the changes in chemical composition and texture parameters of sufu (fermented tofu) during processing. The results showed that: 1) the contents of protein and fat progressively decreased, and pH initially increased, followed by a decrease, and the contents of free amino acids and free fatty acids gradually increased during the fermentation of sufu; 2) the chemical constituents in sufu with lower salt contents were all higher, of which the ripening period was shorter; 3) the hardness of sufu first increased and then decreased during its fermentation, and the adhesiveness displayed a gradual increase, while the springiness gradually decreased; 4) sufu showed little changes in both harness and springiness during the last 10 days of post-ripening; and 5) higher salt content in sufu resulted in higher hardness and springiness but lower adhesiveness.

Key words: sufu, chemical composition, texture, salt

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