IMMOBILIZATION OF YEAST-CELLS ON HYDROGEL CARRIERS OBTAINED BY RADIATION-INDUCED POLYMERIZATION

被引：0
|
作者：
XIN, LZ
CARENZA, M
KAETSU, I
KUMAKURA, M
YOSHIDA, M
FUJIMURA, T
机构：
[1] JIANGSU ACAD AGR SCI,INST APPLICAT ATOM ENERGY,NANJING,PEOPLES R CHINA
[2] CNR,IST FOTOCHIM & RADIAZ ALTA ENERGIA,SEZ LEGNARO,I-35020 LEGNANO,ITALY
[3] JAPAN ATOM ENERGY RES INST,TAKASAKI RADIAT CHEM RES ESTAB,TAKASAKI,GUNMA 37012,JAPAN
来源：
RADIATION PHYSICS AND CHEMISTRY | 1992年 / 40卷 / 06期
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polymer hydrogels were obtained by radiation-induced copolymerization at -78-degrees-C of aqueous solutions of acrylic and methacrylic esters. The matrices were characterized by equilibrium water content measurements, by optical microscopy observations and by scanning electron microscopy analysis. Yeast cells were immobilized on these hydrogels and the ethanol productivity by batch fermentation was determined. Matrix hydrophilicity and porosity were found to deeply influence the adhesion of yeast cells and, hence, the ethanol productivity. The latter as well as other physico-chemical properties were also affected by the presence of a crosslinking agent added in small amounts to the polymerizing mixture.
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页码：579 / 584
页数：6
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