Sol-gel immobilisation of Saccharomyces cerevisiae enhances viability in organic media

被引:28
作者
Desimone, MF
Degrossi, J
D'Aquino, M
Diaz, LE
机构
[1] Univ Buenos Aires, Catedra Quim Analit Instrumental, RA-1113 Buenos Aires, DF, Argentina
[2] Univ Buenos Aires, Fac Farm & Bioquim, RA-1113 Buenos Aires, DF, Argentina
关键词
immobilised; organic solvent; Saccharomyces cerevisiae; solgel; tolerance;
D O I
10.1023/A:1023481304479
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
The polyhydroxylated silane network of a sol-gel protected immobilised Saccharomyces cerevisiae against the effects of five organic solvents. The viability of immobilised yeast directly correlated with the logarithm of the partition coefficient of the solvent in an octanol/water two phase system increasing the decimal reduction time (D) and reaching the maximum with octanol, the most hydrophobic solvent assayed. The D value increased from 0.16 min for free yeast to 1.9 and to 22 min for immobilised yeast exposed to ethanol and 1-octanol respectively.
引用
收藏
页码:671 / 674
页数:4
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