Influence of freeze-thawed cycles on pork quality

Autor: Tiprawee Tippala, Nunyarat Koomkrong, Autchara Kayan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Animal Bioscience, Vol 34, Iss 8, Pp 1375-1381 (2021)
Druh dokumentu: article
ISSN: 2765-0189
2765-0235
DOI: 10.5713/ajas.20.0416
Popis: Objective This study was conducted to determine the effect of freeze-thawed cycles (Fresh meat, F-T 1 cycle and F-T 2 cycles) on the quality characteristics of porcine longissimus dorsi muscle. Methods A total of 20 three-crossbred pigs (Duroc×[Large White×Landrace]) were randomly obtained from a commercial slaughterhouse in Thailand. Muscle samples were immediately taken from 10 to 11th of the longissimus dorsi for histochemical analysis. The muscles were cut into 2.54 cm-thick chops. A minimum of 20 chops were used for each treatment (fresh meat, freeze-thawed 1 and 2 cycles). Individually chops were packaged in polyethylene bags and frozen at −20°C for 6 months followed by thawing in refrigerator at 4°C for 24 h (the 1st freeze-thawed cycle). The freeze-thawed procedure was repeated for two cycles (the 2nd freeze-thawed cycle). Thawing loss, shear force value, citrate synthase activity and muscle fiber characteristics were determined on the muscles. Results Results showed that increasing of freeze-thawed cycle increased the thawing loss (p
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