Solid-state fermentation of Acanthogobius hasta processing by-products for the production of antioxidant protein hydrolysates with Aspergillus oryzae
Título del documento: Solid-state fermentation of Acanthogobius hasta processing by-products for the production of antioxidant protein hydrolysates with Aspergillus oryzae
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000387698
ISSN: 1516-8913
Autores: 1
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Instituciones: 1Huaihai Institute of Technology, School of Marine Science and Technology, Lianyungang, Jiangsu. China
Año:
Periodo: May-Jun
Volumen: 58
Número: 3
Paginación: 343-352
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Biología,
Química
Palabras clave: Peces,
Fermentaciones,
Procesamiento de pescado,
Fermentación en sustrato sólido,
Subproductos,
Hidrolisados protéicos,
Actividad antioxidante,
Acanthogobius hasta
Keyword: Biology,
Chemistry,
Fish,
Fermentation,
Fish processing,
Solid state fermentation,
Byproducts,
Protein hydrolysates,
Antioxidant activity,
Acanthogobius hasta
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