Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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The Impact of Ripening Time on Technological Quality Traits, Chemical Change and Sensory Characteristics of Dry-cured Loin

  • Seong, Pil Nam (Animal Products and Processing Division, National Institute of Animal Science) ;
  • Park, Kyoung Mi (Animal Products and Processing Division, National Institute of Animal Science) ;
  • Kang, Geun Ho (Animal Products and Processing Division, National Institute of Animal Science) ;
  • Cho, Soo Hyun (Animal Products and Processing Division, National Institute of Animal Science) ;
  • Park, Beom Young (Animal Products and Processing Division, National Institute of Animal Science) ;
  • Ba, Hoa Van (Animal Products and Processing Division, National Institute of Animal Science)
  • Received : 2014.10.10
  • Accepted : 2014.12.16
  • Published : 2015.05.01
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Abstract

The effect of ripening time on the technological quality traits, fatty acid compositions and sensory characteristics of dry-cured loin was studied. Pork loins (n = 102) at 24 h post-mortem were used to produce dry-cured loins. The dry-cured loins were assessed at 30, 60, and 90 days of ripening for the aforementioned characteristics. Our results showed that the water activity ($a_w$) decreased (p<0.05) up to 60 days and did not change thereafter. The lipid oxidation and weight loss levels significantly (p<0.05) increased with increased ripening time. The Commission Internationale de l'Eclairage (CIE) $L^*$ decreased for 90 days while CIE $a^*$ increased for 60 days and did not increase thereafter. More noticeably, the levels of most of unsaturated fatty acids and total polyunsaturated fatty acids significantly decreased as increasing ripening time up to 90 days. The 30 days-ripened loins had lower (p<0.05) color, flavor and overall acceptability scores than the loins ripened for 60 and 90 days, however, no differences in sensory traits occurred between the 60 and 90 day-ripened samples. Based on the results obtained in the present study, it is suggested that the ripening duration between 30 and 60 days could be more appropriate for producing dry-cured loin product with higher quality and economic benefits.

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