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  • 标题:凍結融解を利用した豆乳タンパク質の分画技術の開発(平成29年度日本食品科学工学会奨励賞)
  • 作者:守田 和弘
  • 期刊名称:日本食品科学工学会誌
  • 印刷版ISSN:1341-027X
  • 电子版ISSN:1881-6681
  • 出版年度:2018
  • 卷号:65
  • 期号:5
  • 页码:227-232
  • DOI:10.3136/nskkk.65.227
  • 语种:Japanese
  • 出版社:Japanese Society for Food Science and Technology
  • 摘要:

    The 7S and 11S globulins are major components of soybean protein. A novel freeze-thaw method for simplified fractionation of these proteins in soymilk has been developed. Raw soymilk was frozen at -30°C, and then thawed at 10°C for 24 h. The freeze-thawed soymilk was separated into two layers, and the weight ratio of the upper layer to the lower layer was 3:2. In SDS-PAGE analysis, the 11S/7S ratios were 0.14 and 1.7 in the upper and lower layers, respectively. Tofu curds were prepared using various ratios of the upper to lower layers. The breaking stress of the tofu curd increased with the increase of the lower layer. The curd made from the upper layer was soft and smooth, whereas that made from the lower layer was firm. A novel dessert-like product was made from the upper layer and a novel sausage-like product was made from the lower layer. These results show that rough separation of 7S and 11S globulins in raw soymilk can be achieved using a simple freeze-thaw treatment, thus facilitating the development of new food products.

  • 关键词:soymilk;豆乳;7S globulin;7Sグロブリン;11S globulin;11Sグロブリン;freeze;凍結;tofu;豆腐
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