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Metrics (View:30)- Curing Pork Loin with Natural Converted Nitrite
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Curing Pork Loin with Natural Converted Nitrite
Received: Jun 13, 2024 ; Revised: Jul 23, 2024 ; Accepted: Jul 25, 2024
Published Online: Jul 30, 2024
Abstract
This study used ascorbic acid and ultrasound to improve the quality of pork loin marinated with pre-converted Angelica keiskei (PA). Pork loins were cured without nitrite (NC); with nitrite (PC); with PA (PA); with PA and ascorbic acid (PA+A); with PA and ultrasound treatment (PA+U); and with PA, ascorbic acid, and ultrasound treatments (PA+AU). The nitrite content in the curing solution was maintained at 180 ppm, except for NC. Cured loins with PA and ascorbic acid (PA+A and PA+AU) showed identical color values, curing efficiencies, and lower residual nitrite compared with that of PC. The pH of the PA-cured loins was lower than that of PC, and the moisture content was higher than that of NC. Following ultrasound treatment, protein solubility and tenderness were enhanced, whereas the myofibril fragmentation index did not significantly differ. PA effectively inhibited lipid oxidation in cured loins. In the PA+A treatment group, there was no difference in the redness of the cured meat color compared to PC, but the residual nitrite ion scavenging ability was close to 70%. Therefore, curing pork loins with pre-converted Angelica keiskei, ascorbic acid, and ultrasound treatment may be useful for producing high-quality meat products.