<![CDATA[Potential waste-degrading microbes have long been the focus of research in efforts to increase the efficiency and effectiveness of waste processing, one of which is the Bacillus group. This research aims to select and identify Bacillus sp from composting litter. The samples used were litter from composting with five different treatments, two of which were successive additions of nutrient broth (NB) and formula, while the other three treatments were molasses, tryptic soy broth (TSB), and talc which were added by the consortium. Isolation was carried out using the serial dilution method, followed by purification, and tested for hemolysis potential on blood agar media, while the cellulolytic, amylolytic and proteolytic abilities were carried out by growing the isolate on solid agar media carboxyl methyl cellulose (CMC), starch and skim. Isolates that had three abilities based on the hydrolysis index were tested as antagonists. Isolates that were not mutually antagonistic were identified based on phenotype (colony morphology and Gram staining) and genotype (16S rRNA gene). Fourteen isolates suspected to be Bacillus sp were known to have cellulolytic, amylolytic and proteolytic abilities. Four isolates were selected, two of which had similarity to Bacillus stercoris, while the other two isolates, namely 5.5 and 5.9R, each had similarity to Calidifontibacillus erzurumensis and Bacillus amyloliquefaciens. Litter waste can be a source of searching for potentially hydrolytic Bacillus isolates. Keywords: amylolytic, decomposer bacteria, cellulolytic, proteolytic]]>
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