THE DYNAMICS OF ACTINOBACTERIA COMMUNITY DURING COMPOSTING

Mukhlissul Faatih

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.

Keywords


Community, Actinobacteria, Compost

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DOI: http://dx.doi.org/10.14203/widyariset.15.3.2012.611–618

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