Ding, WJ (reprint author), Chinese Acad Sci, Inst High Energy Phys, POB 2732, Beijing 100080, Peoples R China.
Article; Proceedings Paper
The content of chromium in the DNA, RNA and protein fractions separated from chromium-rich and normal brewer's yeast was determined by neutron activation analysis (NAA). Our results show that the extracted relative amounts and concentrations of DNA, RNA and proteins have no significant difference for two types of yeast, but the chromium content in DNA, RNA and proteins fractions extracted from the chromium-rich yeast are substantially higher than those from the normal. In addition, the concentration of chromium in DNA is much higher than that in RNA and proteins It is evident that the inorganic chromium compounds can enter the yeast cell during the yeast cultivation in the chromium-containing culture medium and are converted into organic chromium species, which are combined with DNA, RNA and proteins.
Ding WJ,Qian QF,Hou XL,et al. Determination of chromium combined with DNA, RNA and proteins in chromium-rich brewer's yeast by NAA[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2000,244(2):#REF!.
丁万见.,钱琴芳.,侯小琳.,丰伟悦.,柴之芳.,...&Wangke.(2000).Determination of chromium combined with DNA, RNA and proteins in chromium-rich brewer's yeast by NAA.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,244(2),#REF!.
丁万见,et al."Determination of chromium combined with DNA, RNA and proteins in chromium-rich brewer's yeast by NAA".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 244.2(2000):#REF!.