Data/hora: 06/06/2024 01:29:44

Provedor de dados: | 52
País: | Brazil
Título: | Solid-state fermentation of Acanthogobius hastaprocessing by-products for the production of antioxidant protein hydrolysates with Aspergillus oryzae
Autores: | Fang,Yaowei; Wang,Shujun; Liu,Shu; Lu,Mingsheng; Jiao,Yuliang; Chen,Guoqiang; Pan,Jianmei.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Functionalities and antioxidant properties; Acanthogobius hasta processing by-product; Solid state fermentation; Protein hydrolysates; Aspergillus oryzae.
Resumo: | Functional properties and antioxidative activity of a protein hydrolysate prepared from Acanthogobius hasta processing by-product protein during solid-state fermentation with Aspergillus oryzae were investigated. Overall, protease activity increased with the degree of hydrolysis (DH) decreased during solid-state fermentation. All the protein hydrolysate had excellent solubility, possessed interfacial properties, and varying degrees of antioxidant activity which were governed by their concentrations and DH, molecular weight distribution and amino acid composition. After 5 days fermentation, the DH of the protein hydrolysate was 31.23%. The protein hydrolysate had the highest total hydrophobic amino acid content, the highest DPPH scavenging activity, reducing power, and the chelating activity. The radical-scavenging activity of the hydrolysates at 6 mg/mL was 78.6%. The reducing power of protein hydrolysate at the range of 0-6 mg/mL was lower than that of BHA at the range of 0-60 µg/mL, while the chelating activity of APs was similar to that of BHA at the range of 0-60 µg/mL. Moreover, the protein hydrolysate showed good emulsifying and foaming properties over a wide pH range from 2 to 12. Therefore, solid state fermentation provided a suitable and low-cost method for converting Acanthogobius hasta processing by-product protein into antioxidant protein hydrolysates.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000300343
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-8913201500297
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.58 n.3 2015
Fonte: | info:eu-repo/semantics/openAccess