Comparative Characteristics and Desilicon Ability of 10 Strains of Silicate Bacteria Screened from Different Bauxite Ores

2012 ◽  
Vol 524-527 ◽  
pp. 953-956
Author(s):  
Chan Juan Zhong ◽  
De Si Sun ◽  
Hong Bao ◽  
Hao Chen
Keyword(s):  
Henan Province ◽  
Jiangxi Province ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Silicate Bacteria ◽  
Bauxite Ore ◽  
Physiological And Biochemical

Ten strains of silicate bacteria were screened from three bauxite samples in Jiangxi Province and Henan Province in China. The ten strains were determined as B. mucilaginosus according to the results of physiological and biochemical characteristics and desilicon ability. Bioleaching tests showed that the ten strains all can decompose bauxite ore and release silicon from bauxite, but had a large difference of desilicon ability among them.

Physiological and Biochemical Characteristics and Desilication Ability of Bacillus Mucilaginosus Screened from Poyang Lake Area of Jiangxi Province

2011 ◽  
Vol 308-310 ◽  
pp. 1604-1608
Author(s):  
Li Ming Zhang ◽  
De Si Sun ◽  
Yang Bo
Keyword(s):  
Nitrogen Source ◽  
Poyang Lake ◽  
Jiangxi Province ◽  
Lake Area ◽  
Free Medium ◽  
Bacillus Mucilaginosus ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Poyang Lake Area ◽  
Physiological And Biochemical

18 strains of Bacillus mucilaginosus were sampled from Poyang Lake area of Jiangxi province in China . Morphology and physio-biochemical characteristics and desilication ability on bauxite were studied. The results showed that all strains are rods and produced spores from elliptical to circular， while strains of P8、P11、P15 are short rod. Gram reaction of 18 strains are negative.The strains can use nitrites and ammonium salt as nitrogen source, and survived in the nitrogen free medium. P4、P3 showed strong desilication ability, compared to blank control the content of soluble SiO2 increased to 4.57、4.13 times respectively; P2、 P7、P9 could tolerate 4% NaCl and were growing well at the temperature ranging from 25~35 °C.

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