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Carvacrol-loaded nanoemulsions stabilized by soy protein isolate / chitooligosaccharide conjugates inhibited the oxidation and conformational variations of myofibrillar proteins in refrigerated sea bass (Lateolabrax maculatus).
Zhao, Jiaxin; Lan, Weiqing; Xie, Jing.
Afiliación
  • Zhao J; College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
  • Lan W; College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering (Shanghai Ocean University), Shanghai 201306, China. Electronic address: wqlan@shou.edu.cn.
  • Xie J; College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; National Experimental Teaching Demonstration Center for Food Science and Engineering (Shanghai Ocean University), Shanghai 201306, China. Electronic address: jxie@shou.edu.cn.
Food Chem ; 460(Pt 1): 140442, 2024 Dec 01.
Article en En | MEDLINE | ID: mdl-39047475
ABSTRACT
Soy isolate protein / chitooligosaccharide (SPI/COS) glycosylated conjugates was prepared and employed as an emulsifier to stabilize carvacrol-loaded nanoemulsions (CNE-SPI/COS). The effects of CNE-SPI/COS on the oxidation and aggregation of myofibrillar protein (MPs) from sea bass (Lateolabrax maculatus) were investigated. Samples were immersed in sterile water (CK), SPI/COS solution and CNE-SPI/COS solution, respectively, follow by a 15-day refrigerated storage. MPs were extracted from fish fillets at 3-day intervals, then assessed for the oxidation degree and conformational changes in MPs, as well as structural variations in myofibrils. Compared with the CK group, the results obtained from protein oxidation assessment clarified that the oxidation and aggregation of MPs was significantly reduced by the CNE-SPI/COS treatment, as evidenced by the higher total sulfhydryl content and Ca2+-ATPase activity and lower surface hydrophobicity. Conformational analysis of MPs showed that CNE-SPI/COS was effective in maintaining the ordered secondary structure of MPs and reducing the exposure of hydrophobic residues in the hydrophobic core of the tertiary structure. In addition, CNE-SPI/COS was found to be effective in protecting the microstructure of muscle fibers and myofibrils in fish fillets. These results suggest that CNE-SPI/COS can be a promising method to prevent protein oxidation and aggregation in fish.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oxidación-Reducción / Lubina / Proteínas de Soja / Proteínas de Peces / Emulsiones / Cimenos Límite: Animals Idioma: En Revista: Food Chem Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oxidación-Reducción / Lubina / Proteínas de Soja / Proteínas de Peces / Emulsiones / Cimenos Límite: Animals Idioma: En Revista: Food Chem Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido