Effect of slurry ice during storage on myofibrillar protein of Pseudosciaena crocea

Abstract

In order to explore the effect of slurry ice on myofibrillar protein of Pseudosciaena crocea, the changes in myofibrillar protein and muscle microstructure during storage were studied with crushed ice as a control. During the storage period, the rate of decrease in myofibrillar protein content, Ca2+‐ATPase activity, and total sulfhydryl groups in the slurry ice group was lower than in the control group (p < .05). There was a significant linear correlation between the hydrophobicity and the storage time (Rcrushed ice (4℃) = 0.9881, Rslurry ice (4℃) = 0.9878, Rslurry ice (−1℃) = 0.9674), and trichloroacetic acid (TCA) soluble peptide content was lower than in the control group at the same time. Slurry ice (−1℃) was optimal in maintaining protein content in P. crocea; the arrangement of myofibrils in P. crocea treated by slurry ice was compact and the gaps were small. Slurry ice can delay the denaturation and degradation of fish myofibrillar protein and maintain its quality.

The effects of tea polyphenol‐ozonated slurry ice treatment on the quality of large yellow croaker (Pseudosciaena crocea) during chilled storage

“…Traditional ice storage is simple to operate, no power demand and can maintain the biological characteristics of aquatic products, but rough surface and poor fluidity can cause surface friction damage. Several researchers have manifested that slurry ice could significantly solve these problems 4–7 …”

“…Several researchers have manifested that slurry ice could significantly solve these problems. [4][5][6][7] Slurry ice is a homogeneous two-phases aqueous secondary refrigerant consisting of tiny ice particles and a carried liquid. Slurry ice can reduce damage caused by surface abrasion, slow down the chemical and enzymatic reactions, allow a faster cooling and wash surface, which primarily results from its physical and engineering properties, such as tiny and smooth ice particles, great refrigeration and flow property, and high heat exchange rate.…”

Evaluation of the Biochemical and Functional Characteristic of Stinging catfish, Heteropneustes fossilis Muscle Tissue with Emphasize on Myofibrillar Protein and Collagen

“…A gradual decline in the myofibrillar protein along with an upsurge in denatured protein was observed with the progress of post-mortem storage time. Feng et al also reported that in Pseudosciaena crocea, the myofibrillar protein was decreases with increase in storage time in slurry ice (25) . Total collagen in the fish muscle declined from 1.12% to 0.36% during the storage period.…”