Growth of Azotobacter vinelandii in a solid-state fermentation of technical lignin |
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| Authors: | Zhang Xiaoyong Zhao Hua Zhang Jianan Li Zuohu |
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| Affiliation: | State Key Laboratory of Biochemical Engineering, Institute of Chemical Metallurgy, Chinese Academy of Sciences, P.O. Box 353, Beijing 100080. zhangxyy@yahoo.com |
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| Abstract: | Azotobacter vinelandii was cultured on technical lignin, derived from Kraft pulping processes, for biofertilizer production in solid-state fermentation. The effects of the ratio of technical lignin to corn straw, initial water content, and material bed depth on the microorganisms were studied in detail. At 30 degrees C, technical lignin to corn straw at the ratio of 1:0.75, the bed depth of 5 cm, and 67% moisture content, A. vinelandii was grown and reached 4.2 x 10(10) cfu g(-1) dry rot after 36 h. |
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