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7898599 
Journal Article 
Effect of copaíba essential oil (Copaifera officinalis L.) as a natural preservative on the oxidation and shelf life of sheep burgers 
Monteschio, JO; de Vargas Junior, FM; Alves da Silva, AL; Das Chagas, RA; Fernandes, T; Leonardo, AP; Kaneko, IN; de Moraes Pinto, LA; Guerrero, A; de Melo Filho, AA; Ferraz, VP; Fagundes, GM; Muir, JP 
2021 
1 
PLoS ONE
EISSN: 1932-6203 
Public Library of Science 
16 
3 
e0248499 
English 
33735251 
WOS:000631029700047 
We evaluated the effects of the inclusion of copaíba (Copaifera officinalis L.) essential oil at 0.05 and 0.1% as a possible replacement of synthetic additive butylated hydroxytoluene (BHT) in sheep burgers during 14 days of storage in a refrigerated display case (4°C). During the shelf life days, analyzes of antioxidant activity, lipid oxidation, pH, color, cooking loss, texture and consumer acceptability were carried out on refrigerated burgers. The addition of copaíba essential oil showed an antioxidant effect in sheep burgers (P > 0.05), reducing lipid oxidation. Copaiba essential oil added at 0.05% showed the highest antioxidant activity, decreased cooking losses and delaying discoloration (loss of redness) during storage; it further improved, the tenderness of sheep burgers (P < 0.05). The treatments had no effect (P > 0.05) on consumer acceptability. Copaiba essential oil is a promising natural antioxidant to increase the shelf life of meat products, as well as being a viable solution to replace synthetic antioxidant BHT, thereby promoting the fresh-like quality appeal of sheep burgers.