Sol-gel applications in environmental biotechnology

被引:18
作者
Armon, R [1 ]
Dosoretz, C [1 ]
Starosvetsky, J [1 ]
Orshansky, F [1 ]
Saadi, I [1 ]
机构
[1] MIGAL GALILEE TECHNOL CTR, GALILEE TECHNOL CTR, KIRYAT SHMONA, ISRAEL
关键词
doping; epifluorescent microscopy; film; most probable number method; sol-gel; sulfate-reducing bacteria;
D O I
10.1016/S0168-1656(96)01607-0
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
Sol-gel process was applied for three different applications in environmental biotechnology: (1) thin, fluorescein diacetate-doped sol-gel film made possible epifluorescent microscopic examination of adsorbed Escherichia coli CN13 cells without additional staining; (2) Thiobacillus thiooxidans cell-free extract entrapped into sol-gel matrix displayed oxidative activity on H2S in liquid medium. and (3) two media (E. coli (EC) and sulfate-reducing bacteria (SRB)) were doped into sol-gel and used to enumerate environmental samples for E. coli and sulfate-reducing bacteria, by the most probable number (MPN) method. The comparison of the modified method with the standard enumeration method revealed very good correlation. The sol-gel MPN method is sensitive, saves time, and the substrate can be prepared and stored long-term at room temperature (up to 1 year). Copyright (C) 1996 Elsevier Science B.V.
引用
收藏
页码:279 / 285
页数:7
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