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https://doi.org/10.5713/ab.21.0220    [Accepted] Published online October 21, 2021.
Expression levels of the filaggrin-2 (FLG2) in relation to drip loss in pigs
Autchara Kayan1,*  , Nunyarat Koomkrong2 
1Kasetsart University, Bangkok, Thailand
2Suratthani Rajabhat University, Suratthani, Thailand
Correspondence:  Autchara Kayan, Tel: +66819924645, Fax: +6625711120, Email: fagrark@ku.ac.th
Received: 10 May 2021   • Revised: 28 July 2021   • Accepted: 11 September 2021
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. 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 different in pigs with different levels of drip loss (P>0.05). Statistical analysis revealed that FLG2 protein expression levels were significantly different 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, immunohistochemistry revealed the high signal intensity was on the muscle cell membrane and cytoplasm.

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.
Keywords: Drip Loss; Expression; FLG2; Pig
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