ISSN: 2155-6199

Jornal de Biorremediação e Biodegradação

Acesso livre

Nosso grupo organiza mais de 3.000 Séries de conferências Eventos todos os anos nos EUA, Europa e outros países. Ásia com o apoio de mais 1.000 Sociedades e publica mais de 700 Acesso aberto Periódicos que contém mais de 50.000 personalidades eminentes, cientistas de renome como membros do conselho editorial.

Periódicos de acesso aberto ganhando mais leitores e citações
700 periódicos e 15 milhões de leitores Cada periódico está obtendo mais de 25.000 leitores

Indexado em
  • Índice de Fonte CAS (CASSI)
  • Índice Copérnico
  • Google Scholar
  • Sherpa Romeu
  • Abra o portão J
  • Genâmica JournalSeek
  • Chaves Acadêmicas
  • JornalTOCs
  • PesquisaBíblia
  • Infraestrutura Nacional de Conhecimento da China (CNKI)
  • Diretório de Periódicos de Ulrich
  • Acesso à Pesquisa Online Global em Agricultura (AGORA)
  • RefSeek
  • Universidade Hamdard
  • EBSCO AZ
  • OCLC – WorldCat
  • Catálogo online SWB
  • Publons
  • Fundação de Genebra para Educação e Pesquisa Médica
  • MIAR
  • ICMJE
Compartilhe esta página

Abstrato

Screening, Optimization, and Antibacterial Activity of Cellulose: DegradingBacteria from Sewage Soil Waste

Farjana Islam, Milon Miah, Joyanto Mahato, Narayan Roy

The present study was carried out to isolate, enhancement, identification, optimization of cellulose-degrading bacteria present in sewage soil waste, and screening for potential antibacterial activity. Three bacterial isolates were cultured at a large rate by Minimal Salt Medium (MSM) and showed the highest cellulase activity determined by congo red and iodine assay on Carboxy Methyl Cellulose (CMC) agar plate. Then various culture parameters such as pH, temperature, incubation period, substrate concentration, carbon, and nitrogen sources were optimized for the maximum cellulase secretion. Based on the morphological, cultural, and biochemical tests, the isolated strains were identified as Bacillus licheniformis, Bacillus sp. and Pseudomonas chlororaphis respectively. Bacillus licheniformis compared to other strains produced the highest cellulase enzyme (1 µ/ml) determined by the DNS method at neutral pH and 40ºC temperature on 24 hours incubation period. This bacterial strain was screened for the antibacterial activity determination against several bacterial pathogens and generated an inhibition zone ranging from 12-21 mm. The ethyl acetate extract of the selected strain showed the potential antibacterial activity against Escherichia coli and moderate activity against Shigella boydii and Bacillus cereus. The Minimum Inhibitory Concentration (MIC) of the tested extract was observed to be in the range of 44-62 µg/ml. Based on optimization, cellulose degradation, and antibacterial activity, Bacillus licheniformis was the potential species among the strains. The strain from sewage soil waste can be helpful for biodegradation and industrial application.

Isenção de responsabilidade: Este resumo foi traduzido usando ferramentas de inteligência artificial e ainda não foi revisado ou verificado.