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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Immobilization of Trypsin in Lignocellulosic Waste Material to Produce Peptides with Bioactive Potential from Whey Protein

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Autor(es):
Bassan, Juliana Cristina [1] ; de Souza Bezerra, Thais Milena [2] ; Peixoto, Guilherme [3] ; Paulino da Cruz, Clariana Zanutto [2] ; Martinez Galan, Julian Paul [1] ; dos Santos Vaz, Aline Buda [2] ; Garrido, Saulo Santesso ; Filice, Marco [4] ; Monti, Rubens [1]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] UNESP Univ Estadual Paulista, Fac Ciencias Farmaceut, Dept Alimentos & Nutr, BR-14800903 Araraquara, SP - Brazil
[2] UNESP Univ Estadual Paulista, Inst Quim, Dept Bioquim & Tecnol Quim, BR-14800060 Araraquara, SP - Brazil
[3] UNESP Univ Estadual Paulista, Fac Ciencias Farmaceut, Dept Bioproc & Biotecnol, BR-14800903 Araraquara, SP - Brazil
[4] Fdn Ctr Nacl Invest Cardiovasc Carlos III, Madrid 28029 - Spain
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: MATERIALS; v. 9, n. 5 MAY 2016.
Citações Web of Science: 7
Resumo

In this study, trypsin (Enzyme Comission 3.4.21.4) was immobilized in a low cost, lignocellulosic support (corn cob powder-CCP) with the goal of obtaining peptides with bioactive potential from cheese whey. The pretreated support was activated with glyoxyl groups, glutaraldehyde and IDA-glyoxyl. The immobilization yields of the derivatives were higher than 83%, and the retention of catalytic activity was higher than 74%. The trypsin-glyoxyl-CCP derivative was thermally stable at 65 degrees C, a value that was 1090-fold higher than that obtained with the free enzyme. The trypsin-IDA-glyoxyl-CCP and trypsin-glutaraldehyde-CCP derivatives had thermal stabilities that were 883-and five-fold higher, respectively, then those obtained with the free enzyme. In the batch experiments, trypsin-IDA-glyoxyl-CCP retained 91% of its activity and had a degree of hydrolysis of 12.49%, while the values for trypsin-glyoxyl-CCP were 87% and 15.46%, respectively. The stabilized derivative trypsin-glyoxyl-CCP was also tested in an upflow packed-bed reactor. The hydrodynamic characterization of this reactor was a plug flow pattern, and the kinetics of this system provided a relative activity of 3.04 +/- 0.01 U . g(-1) and an average degree of hydrolysis of 23%, which were suitable for the production of potentially bioactive peptides. (AU)

Processo FAPESP: 12/07680-4 - Hidrolisados parciais de soroproteínas lácteas bovina e bubalina obtidos com proteases imobilizadas: ensaios de transporte e absorção de peptídeos através das técnicas da dialisabilidade e cultura de células Caco-2
Beneficiário:Juliana Cristina Bassan
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 14/12563-2 - Utilização de resíduos agroindustriais para imobilização e estabilização de enzimas de interesse biotecnológico
Beneficiário:Rubens Monti
Linha de fomento: Auxílio à Pesquisa - Regular