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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Agroindústria de Alimentos. |
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Data corrente: |
05/09/2017 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAZOTTO, A. M.; ASCHERI, J. L. R.; GODOY, R. L. de O.; DAMASO, M. C. T.; COURI, S.; VERMELHO, A. B. |
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Afiliação: |
ANA MARIA MAZOTTO, UFRJ; JOSE LUIS RAMIREZ ASCHERI, CTAA; RONOEL LUIZ DE OLIVEIRA GODOY, CTAA; MONICA CARAMEZ TRICHES DAMASO, CNPAE; SONIA COURI, Instituto Federal de Educação Ciência e Tecnologia do Rio de Janeiro; ALANE BEATRIZ VERMELHO, UFRJ. |
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Título: |
Production of feather protein hydrolyzed by B. subtilis AMR and its application in a blend with cornmeal by extrusion. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
LWT - Food Science and Technology, v. 84, p. 701-709, 2017. |
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ISSN: |
0023-6438 |
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Idioma: |
Inglês |
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Conteúdo: |
The poultry industry produces approximately 6 million tons of feathers as a by-product annually. The major constituent of feather is protein (80e90% of which is keratin). In order to use feather protein in animal feedstuffs, it must be hydrolyzed by chemical, physical or enzymatic processes. The aim of this study was to improve the production of chicken feather hydrolysates using keratinolytic Bacillus subtilis AMR and evaluate the effectiveness of a blend of this hydrolysate with cornmeal produced by extrusion. The addition of sucrose (0.5 g/L) to the feather medium increased the keratinolytic activity of B. subtilis AMR by 1.3 fold. The highest enzymatic activity and production of soluble protein were achieved at pH 8.0. The fermented feather medium presented large amounts of protein with low molecular weight that provided greater nutrient bioavailability. The physicochemical properties of the extrudates showed that the addition of hydrolyzed feather improved the ash and total N content. All essential amino acids were detected in the cornefeather hydrolysate extrudate. This work represents the first study that describes the use of microbial feather hydrolysate in a blend with cornmeal to make an extruded product. These results demonstrated the potential use of this hydrolysate as a supplement in animal feed. |
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Palavras-Chave: |
Bacillus; Feather keratin. |
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Thesaurus Nal: |
enzymatic hydrolysis; extrusion; fermentation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163431/1/Production-of-feather-protein-hydrolyzed-by-B.-subtilis-AMR-and-its-application-in-a-blend-with-cornmeal-by-extrusion.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/164817/1/Mazotto-et-al-2017.pdf
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Marc: |
LEADER 02091naa a2200253 a 4500
001 2075034
005 2022-05-17
008 2017 bl uuuu u00u1 u #d
022 $a0023-6438
100 1 $aMAZOTTO, A. M.
245 $aProduction of feather protein hydrolyzed by B. subtilis AMR and its application in a blend with cornmeal by extrusion.$h[electronic resource]
260 $c2017
520 $aThe poultry industry produces approximately 6 million tons of feathers as a by-product annually. The major constituent of feather is protein (80e90% of which is keratin). In order to use feather protein in animal feedstuffs, it must be hydrolyzed by chemical, physical or enzymatic processes. The aim of this study was to improve the production of chicken feather hydrolysates using keratinolytic Bacillus subtilis AMR and evaluate the effectiveness of a blend of this hydrolysate with cornmeal produced by extrusion. The addition of sucrose (0.5 g/L) to the feather medium increased the keratinolytic activity of B. subtilis AMR by 1.3 fold. The highest enzymatic activity and production of soluble protein were achieved at pH 8.0. The fermented feather medium presented large amounts of protein with low molecular weight that provided greater nutrient bioavailability. The physicochemical properties of the extrudates showed that the addition of hydrolyzed feather improved the ash and total N content. All essential amino acids were detected in the cornefeather hydrolysate extrudate. This work represents the first study that describes the use of microbial feather hydrolysate in a blend with cornmeal to make an extruded product. These results demonstrated the potential use of this hydrolysate as a supplement in animal feed.
650 $aenzymatic hydrolysis
650 $aextrusion
650 $afermentation
653 $aBacillus
653 $aFeather keratin
700 1 $aASCHERI, J. L. R.
700 1 $aGODOY, R. L. de O.
700 1 $aDAMASO, M. C. T.
700 1 $aCOURI, S.
700 1 $aVERMELHO, A. B.
773 $tLWT - Food Science and Technology$gv. 84, p. 701-709, 2017.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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| 1. |  | CASTILHO, L. R.; COELHO, M. A. Z.; COURI, S.; LEITE, S. G. F.; MEDRONHO, R. A. Escolha de linhagens de A.Niger para a producao de pectinases e caracterizacao do complexo enzimatico. In: CONGRESSO BRASILEIRO DE ENGENHARIA, 11., 1996, Rio de Janeiro, RJ. Anais... Rio de Janeiro: Associacao Brasileira de Engenharia Quimica, 1996. v. 2, p.1466-1471.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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