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| Proteins, Expression, Isolation and Analysis | The myofibrillar proteins were extracted using the method of Qian et al. [2]. The shrimp muscle (5 g) were m inced and stirred in phosphate buffer A (15.6 mmol/L Na2HPO4, 3.5 mmol/L KH2PO4, I = 0.05, pH 7.5, 4 °C; Sinopharm Chemical Reagent Co., Ltd., Beijing, China). The precipitate was collected after centrifugation at 1000 g and then centrifuged with phosphate buffer B (15.6 mmol/L Na2HPO4, 3.5 mmol/L KH2PO4, 0.45 mol/L KCl, I = 0.5, pH 7.5, 4 °C) at 1000 g, 4 °C. The Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE, GenScript Co., Ltd., Nanjing, China) was conducted referring to the method of Qian et al. [28]. | Get A Quote |
The objective of this study was to evaluate the effect of cell-free supernatant (CFS) from Aeromonas sobria on the growth and spoilage potential of Shewanella putrefaciens in Pacific white shrimp (Litopenaeus vannamei) during cold chain logistics, including transportation, retailing, and domestic storage. It was shown that the quality of shrimps deteriorated in the cold chain logistics over time. The temperature fluctuation during the experimental period favored the growth of S. putrefaciens, increased the total volatile basic nitrogen (TVB-N) and biogenic amine value, and decreased the sensory quality of shrimps. The application of CFS resulted in the decline on the growth of S. putrefaciens after the e... More
