J4 ›› 2011, Vol. 24 ›› Issue (2): 35-40.
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ZHANG Rui-Qing, YUAN Tang-Yu, SUN Yan-Xia, LIU Ke-Ning
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Abstract:
We screen two groups of composite microbial systems, MC-A1 and MC-N1, with stronger cellulose degrading capabilities from homemade compost heap and several natural fermentation materials by regular regeneration during incubation. MC-A1 is a composite thermophilic aerobic cellulolytic microbial community which is acquired by a subculture technique of shakeflaskfermentation broth, while MC-N1 is another composite microbial community with thermophilic anaerobic cellulolytic capability which is obtained by static cultivation and regular regeneration. It is discovered that the degradation rates of communities MC-A1 and MC-N1 for wheatstraw powder can reach 42% and 38% within 96 h. Their quickest degradation rates occur between 48 h and 96 h, but these rates steeply decline after 96 h.This degradation rate can reach 47% by incubation of MC-A1 through 96 h shakeflaskfermentation and then incubation of MC-N1 through 96 h static cultivation. This demonstrates that these two cellulolytic microbial communities show cooperative function in the course of the degradation of nonnatural cellulose.
CLC Number:
X172
ZHANG Rui-Qing, YUAN Tang-Yu, SUN Yan-Xia, LIU Ke-Ning. Selection and cooperative functionality of two groups of cellulose degrading microbial communities MC-1 and MC-1 with different degradation effects[J].J4, 2011, 24(2): 35-40.
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