Succession of the community of dominant growth bacteria in an aerobic biodegradation machine for garbage which uses a wood matrix
2001
Horisawa, S. (Akita Prefectural Univ., Noshiro (Japan)) | Sakuma, Y. | Tamai, Y. | Doi, S. | Terazawa, M.
In order to evaluate the microbial community in a garbage degradation machine which uses wood matrix, cultivable dominant microorganisms were isolated from the matrices. Sample matrices were taken during the course of the degradation experiment upon various moisture content conditions of the matrices (20%, 30%, 40%, 50%, 60%, 70%, and 80%) and with various environmental temperatures (10degC, 20degC, 30degC, 40degC, and 50degC), at 3, 5, 10, 20, and 30 days. Isolates were identified by cell morphology, Gram staining, and utilization pattern of 95 different carbon sources. The microbial community for each temperature and moisture condition and time was analyzed. It was found that Bacillus subtilis acts as a pioneer and that Cellulomonas turbata and Xanthomonas campestris appeared predominantly in the community at the optimum conditions of moisture content and environmental temperature to confer the highest degradation rate.
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