Expression levels of filaggrin-2 in relation to drip loss in pigs

Abstract

Objective:The aim of this study was to investigate the expression level of filaggrin-2 (FLG2) in correlation with drip loss. Methods:The muscle samples were randomly taken from a local meat supplier. The muscle samples were taken from Longissimus lumborum muscles to evaluate the drip loss (n=100). Five muscles per group (low and high drip loss) were selected to evaluate FLG2 mRNA and protein expression levels.Results: mRNA of FLG2 gene was not significantly difference in pigs with different levels of drip loss (P>0.05). Statistical analysis revealed that FLG2 protein expression levels were significantly difference between the drip loss groups. Western blot revealed that the high drip loss group had higher FLG2 protein expression level than the low drip loss group (P<0.001). Moreover, the high signal intensity was observed on the muscle cell membrane and cytoplasm for immunohistochemistry. Conclusion:FLG2 protein might play roles in drip loss of pork and will provide the basis for information to improving meat quality traits in pigs.

Effect of season on slaughter performance, meat quality, muscle amino acid and fatty acid composition, and metabolism of pheasants (Phasianus colchicus)

“…Drip loss is related to the integrity of the muscle cell membrane. When the body has too many free radicals, it can cause oxidative damage to the cell membrane, thereby destroying the cell membrane structure and increasing water loss (Kayan & Koomkrong, 2021). It has been suggested that there is no difference in pH, flesh color, and drip loss in breast muscles of male and female pheasants, even though gender knowingly affects meat cooking loss (Daszkiewicz & Janiszewski, 2020).…”