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Fungal decomposition of chicken-feather waste in submerged and solid-state fermentation / Decomposição fúngica de resíduos de pena de frango em fermentação submersa e de estado sólido
Masood, S; Hussain, A; Javid, A; Bukahri, S M; Ali, W; Ali, S; Ghaffar, I; Imtiaz, A; Amin, H M A; Salahuddin, H; Inayat, M; Razzaq, S; Kafayat, F; Rafiq, H; Yasmeen, M; Muneeb, M; Sattar, S.
  • Masood, S; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Hussain, A; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Javid, A; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Bukahri, S M; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Ali, W; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Ali, S; University of the Punjab. Department of Botany. Lahore. PK
  • Ghaffar, I; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Imtiaz, A; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Amin, H M A; University of Veterinary and Animal Sciences. Department of Dairy Technology. Lahore. PK
  • Salahuddin, H; University of Okara. Department of Zoology. Okara. PK
  • Inayat, M; University of Veterinary and Animal Sciences. Department of Fisheries and Aquaculture. Lahore. PK
  • Razzaq, S; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Kafayat, F; University of Okara. Department of Zoology. Okara. PK
  • Rafiq, H; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Yasmeen, M; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Muneeb, M; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
  • Sattar, S; University of Veterinary and Animal Sciences. Department of Wildlife and Ecology. Lahore. PK
Braz. j. biol ; 83: e246389, 2023. graf
Article in English | LILACS, VETINDEX | ID: biblio-1285638
ABSTRACT
Abstract Poultry industry is expanding rapidly and producing million tons of feather waste annually. Massive production of keratinaceous byproducts in the form of industrial wastes throughout the world necessitates its justified utilization. Chemical treatment of keratin waste is proclaimed as an eco-destructive approach by various researchers since it generates secondary pollutants. Keratinase released by a variety of microbes (bacteria and fungi) can be used for the effective treatment of keratin waste. Microbial degradation of keratin waste is an emerging and eco-friendly approach and offers dual benefits, i.e., treatment of recalcitrant pollutant (keratin) and procurement of a commercially important enzyme (keratinase). This study involves the isolation, characterization, and potential utility of fungal species for the degradation of chicken-feather waste through submerged and solid-state fermentation. The isolated fungus was identified and characterized as Aspergillus (A.) flavus. In a trial of 30 days, it was appeared that 74 and 8% feather weight was reduced through sub-merged and solid-state fermentation, respectively by A. flavus. The pH of the growth media in submerged fermentation was changed from 4.8 to 8.35. The exploited application of keratinolytic microbes is, therefore, recommended for the treatment of keratinaceous wastes to achieve dual benefits of remediation.
RESUMO
Resumo A indústria avícola está se expandindo rapidamente e produzindo milhões de toneladas de resíduos de penas anualmente. A produção massiva de subprodutos queratinosos na forma de resíduos agrícolas e industriais em todo o mundo exige sua utilização justificada. O tratamento químico de resíduos de queratina é proclamado como uma abordagem ecodestrutiva por vários pesquisadores, uma vez que gera poluentes secundários. A queratinase liberada por uma variedade de micróbios (bactérias e fungos) pode ser usada para o tratamento eficaz de resíduos de queratina. A degradação microbiana de resíduos de queratina é uma abordagem emergente e ecológica e oferece benefícios duplos, ou seja, tratamento de poluente recalcitrante (queratina) e obtenção de uma enzima comercialmente importante (queratinase). Este estudo envolve o isolamento, caracterização e utilidade potencial de espécies de fungos para a degradação de resíduos de penas de frango por meio da fermentação submersa e em estado sólido. O fungo isolado foi identificado e caracterizado como Aspergillus (A.) flavus. Em um ensaio de 30 dias, constatou-se que 74% e 8% do peso das penas foram reduzidos por A. flavus, respectivamente, por meio da fermentação submersa e em estado sólido. O pH do meio de crescimento em fermentação submersa foi alterado de 4,8 para 8,35. A aplicação explorada de micróbios queratinolíticos é, portanto, recomendada para o tratamento de resíduos ceratinosos para obter benefícios duplos de remediação.
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Full text: Available Index: LILACS (Americas) Main subject: Chickens / Feathers Limits: Animals Language: English Journal: Braz. j. biol Year: 2023 Type: Article Institution/Affiliation country: University of Okara/PK / University of Veterinary and Animal Sciences/PK / University of the Punjab/PK

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Full text: Available Index: LILACS (Americas) Main subject: Chickens / Feathers Limits: Animals Language: English Journal: Braz. j. biol Year: 2023 Type: Article Institution/Affiliation country: University of Okara/PK / University of Veterinary and Animal Sciences/PK / University of the Punjab/PK