Comparison of Pb2 accumulation characteristics between live and dead cells of Saccharomyces cerevisiae and Aureobasidium pullulans |
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| Authors: | Jung Ho Suh Jong Won Yun Dong Seog Kim |
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| Affiliation: | (1) Dept. of Chemical Engineering, Pusan National University, Pusan, Korea;(2) Dept. of Biotechnology, Taegu University, Kyungbuk, Korea;(3) Dept. of Environmental Science, Catholic University of Taegu-Hyosung, Kyungbuk, Korea |
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| Abstract: | Pb2+ accumulation processes between live and dead cells of Saccharomyces cerevisiae and Aureobasidium pullulans are different. In the case of S. cerevisiae, the Pb2+ accumulation capacity of the live cells was higher than that of the dead cells but they showed reversed initial Pb2+ accumulation rates. On the contrary, A. pullulans used a different process due to the existence of extracellular polymeric substances, which allowed both the capacity and the initial rate of Pb2+ accumulation in the live cells to be higher than those in the dead cells. © Rapid Science Ltd. 1998 |
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