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  • 标题:Influence of glycation and pepsin hydrolysis on immunoreactivity of albumin/globulin fraction of herbicide resistant wheat line
  • 作者:Nagy A. ; Marciniak-Darmochwał K. ; Krawczuk S.
  • 期刊名称:Czech Journal of Food Sciences
  • 印刷版ISSN:1212-1800
  • 电子版ISSN:1805-9317
  • 出版年度:2009
  • 卷号:27
  • 期号:5
  • 页码:320-329
  • DOI:10.17221/48/2008-CJFS
  • 出版社:Czech Academy of Agricultural Sciences
  • 摘要:The aim of this study was to investigate the influence of non-enzymatic glycosylation on the immunogenic properties of soluble wheat proteins. Albumin/globulin fractions of herbicide resistant wheat line were non-enzymatically glycosylated using glucose for seven days at 37°C. The changes in their structures and immunoreactivity were then determined. The protein fractions were also hydrolysed with pepsin to determine the resistance to digestion. Albumin/globulin fractions before and after non-enzymatic glycosylation were analysed using o -phthaldialdehyde method and sodium dodecyl sulphate-polyacrylamide gel electrophoresis. The immunoreactivity of the protein fractions was determined using enzyme-linked immunosorbent assay methods, as well as affinity chromatography. The soluble wheat proteins showed smaller amounts of available α-amino groups after non-enzymatic glycosylation, and were stronger immunogens after glycation, but their antigenicity was not been affected significantly. However, pepsin hydrolysis of wheat proteins decreased their immunoreactivity.
  • 关键词:non-enzymatic glycosylation; glycation; pepsin hydrolysis; immunoreactivity
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