Effect of extracellular polymeric substances (EPS) on Pb2+ accumulation by Aureobasidium pullulans

被引：0
|
作者：
Suh, JH [1 ]
Yun, JW
Kim, DS
机构：
[1] Catholic Univ Taegu Hyosung, Dept Environm Sci, Kyungbuk 712702, South Korea
[2] Ulsan Jr Coll, Dept Ind Chem, Ulsan 680749, South Korea
[3] Taegu Univ, Dept Biotechnol, Kyungbuk 712714, South Korea
来源：
BIOPROCESS ENGINEERING | 1999年 / 21卷 / 01期
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中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
In Pb2+ accumulation by Aureobasidium pullulans, the time to reach an equilibrium state was not dependent on the initial cell dry weight. The Pb2+ accumulation capacity was increased from 56.9 to 215.6 mg Pb2+/g cell dry weight as the biomass was stored from 1 to 53 days, and correlated with the amount of excreted extracellular polymeric substances (EPS). It was observed that Pb2+ accumulated only on the surface of the intact cells of A. pullulans due to the existence of EPS, whereas Pb2+ penetrated into the inner cellular parts of the EPS-extracted cells.
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页码：1 / 4
页数：4
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