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富铬酵母蛋白质的制备及红外光谱特征
Isloation and characteristics of infrared spectra of chromium-rich yeast protein
【摘要】 目的研究金属铬与酵母细胞的结合方式。方法利用红外光谱法对啤酒酵母生物富集金属铬前、后蛋白质的变化进行分析。结果得到生物富集金属铬前、后的IR谱图。发现酰胺Ⅰ带的吸收峰发生位移,从1 657.78 cm移动至1 646.02 cm,且峰形发生变化。结论蛋白质肽链上的羰基氧与铬形成配位键。
【Abstract】 Aim To study the combained forms of chromium and yeast.Methods Analyze the change of yeast protein after binding chromium by Fourier Transform Infrared Radiation(FTIR).Results After binding,amideⅠabsorption peak shifted from 1 657.78 cm-1to 1 646.02 cm-1.Conclusion It is concluded that carboxylate oxygen and chromium were bonding with coordinated bond.
【基金】 陕西省自然科学基金资助项目(2002C13)
- 【文献出处】 西北大学学报(自然科学版) ,Journal of Northwest University(Natural Science Edition) , 编辑部邮箱 ,2006年05期
- 【分类号】O629.73
- 【被引频次】4
- 【下载频次】221