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Objective: The objective of this study was to evaluate functional properties of reduced-salt pork meat products made of pre-rigor pork loin treated by different freezing temperatures (–30°C and –70°C) during storage.Methods: Pre-rigor cured pork loin with 1.0% added salt was compared to post-rigor muscle added with 1.5% salt for pH, color (L*, a*, b*), cooking loss (CL), expressible moisture, warner-Bratzler shear value, thiobarbituric acid reactive substances (TBARS), and volatile basic nitrogen (VBN).Results: Pre-rigor cured pork loins had higher pH and temperature than post-rigor ones as raw meat (p 0.05). No color differences were observed during storage period after cooking (p&gt;0.05). The CL (%) of pre-rigor cured pork loins was the lowest when frozen at –70°C. The TBARS and VBN increased from 8 weeks of storage (p 0.05). Pre-rigor cured pork loins added with 1.0% salt showed similar characteristics to post-rigor pork loins added with 1.5% salt.Conclusion: Cured pork loins could be produced using pre-rigor muscle added with 1/3 of the original salt level (1.5%) and could be stored for up to 4 wks of frozen storage, regardless of a frozen temperature of –30°C or –70°C without detrimental effects.

Physicochemical properties of reduced-salt cured pork loin as affected by different freezing temperature and storage periods