|
|||||
|
|
Protoplast fusion between Saccharomyces cerevisiae and Rhodobacter sphaeroides for the treatment of soybean wastewater |
|
| Authors: | Shupei Cheng Yibin Cui Songting Gao Lemei Dai Yunzhong Shi |
| Institution: | 1. The National Key Laboratory of Pollution Control and Resource Reuse, Department of Environmental Science and Engineering , Nanjing University , Nanjing, 210093, P.R. China;2. The Center of Analysis and Measurement , Nanjing University , Nanjing, 210093, P.R. China;3. College of Basic Medicine , Nanjing University of Chinese Medicine and Pharmacology , Nanjing, 210029, P.R. China |
| Abstract: | The kinetic parameters and the purification rates of the hybrid cell Foaz in soybean processing wastewater (SPW) were measured through a shaking reaction and in two automatic regulated control stable fermentation systems (ARCSFS). The maximum specific growth rate of Foaz was 0.576 h‐1, higher than that of one of its parental strains Rhodobacter sphaeroides P9479 and lower than that of another parental strain Saccharomyces cerevisiae Y9407. The BOD5 removal rate of Foaz in the No. 1 system was 61.3%, higher than those of both its parental strains when the influent BOD5 concentration was 4600 mg/L. The results of this study suggest that the hybrid Foaz has a better capacity of the degradation of organic pollutants in SPW than its parental strains and it may be applicable to the treatment of high concentration organic wastewater. |
| Keywords: | Saccharomyces cerevisiae Rhodobacter sphaeroides protoplast fusion soybean processing wastewater wastewater treatment |