THE THE DYNAMICS OF ACTINOBACTERIA COMMUNITY DURING COMPOSTING

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.