Use of ultrasound and acerola (Malpighia emarginata) residue extract tenderness and lipid oxidation of pork meat

• Published in: Ciência e tecnologia de alimentos 2022, Vol.42
• Main Authors: ARAÚJO, Chimenes Darlan Leal de, SILVA, Gledson Firmino Gonçalves da, ALMEIDA, Jorge Luiz Santos de, RIBEIRO, Neila Lidiany, PASCOAL, Leonardo Augusto Fonseca, SILVA, Fábio Anderson Pereira da, FERREIRA, Valquíria Cardoso da Silva, MARTINS, Terezinha Domiciano Dantas
• Format: Article
• Language: Portuguese
• Subjects: FOOD SCIENCE & TECHNOLOGY
• ISSN: 1678-457X
• DOI: 10.1590/fst.66321

Abstract This work aims to evaluate the application of ultrasound and marinate with extract of acerola (Malpighia emarginata) residue on the tenderness and lipid oxidation of the meat pork. Samples of loin (Longissimus dorsi) containing approximately 90 g, 10 cm long, 5 cm wide, and 2 cm high were extracted from the pig carcass. The samples were coded and randomly allocated under a factorial scheme 2 (with and without antioxidant extract) x 3 (ultrasonic bath times 0, 5, and 10 minutes); each treatment had four replicates. The final extract volume was adjusted with distilled water, ensuring 200 mg of gallic acid equivalents per kilo of meat. Then, the samples were placed in the ultrasonic bath at a fixed frequency of 170 W, 35 kHz. During the ultrasound application, the bath temperature was maintained at 10 °C with ice/ice water addition when necessary. The acerola´s extract showed a significant effect (P < 0.05) on the meat Cohesiveness and to a lesser extent before rupture. With the modification of the microstructure in the meat, there was a decrease in elasticity. The application of ultrasound to meat (170 W, 35 kHz) in times (5 and 10 minutes) combined with the marinating in a natural antioxidant acerolas residue extract improves the meat's quality characteristics, decreasing the hardness and chewiness.