Function Determination for Biodegradation of Monosodium Glutamate(MSG)Wastewater with Fusants between Photosynthetic Bacteria and Yeast
光合细菌与酵母跨界融合子降解味精废水性能测定

he protoplasts of Rhodopseudomonas sphaerndes(eukaryote,NtrSms)and Saccharomyces cerevisiae (prokaryote, NtsSmr)were induced with PEG(MW= 6000)to fuse for the construction of the fusant cell (NtrSmr).The fusants F13,F15 and F20 screened from the'fusion production with high flocculation were used to test the kinetics parameters for degradation of MSG wastewater in the shaking reaction for 7-8 h,while the initial BOD5 concentration of the wastewater were from 191 to 690 mg/L.The values of maximum specific growth rate umax. and its half velocity constant Ksu,the maximum specific degradation rate qmaxand its half velocity constant Ksq the true growth yield coefficient Y and the endogenous decay rate coefficient Kd were measured in the reaction.The results of this research suggest that the fusants F13,F15 and F20 have better ability for degradation.of the organic waste in MSG wastewater.