Abstract
The mesophilic, thermophilic, and maturation phases were recognized in the composting process. Temperature changes in the process influence the microbial communities in compost. Actinobacteria account for a larger part of compost microbial population. The aim of this research was to study of Actinobacteria community during composting of dairy-farm waste. Actinobacteria from the compost were isolated using selective media, starchnitrate medium and humic-acid+vitamins medium. The colour of colony and medium pigment were characterized using culture-dependent method. The results showed, total and resident Actinobacteria isolates from mesophilic phase is 29 and 24 isolates, 23 and 16 isolates from thermophilic phase, while 19 and 9 isolates from maturation phase. Twenty two isolates found in more than one phase. Thus, the dynamics of Actinobacteria was occurred within composting process.
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