PLoS ONE (Jan 2021)

Effect of copaíba essential oil (Copaifera officinalis L.) as a natural preservative on the oxidation and shelf life of sheep burgers.

  • Jéssica de Oliveira Monteschio,
  • Fernando Miranda de Vargas Junior,
  • Adrielly Lais Alves da Silva,
  • Renata Alves das Chagas,
  • Tatiane Fernandes,
  • Ariadne Patricia Leonardo,
  • Isabelle Naemi Kaneko,
  • Laura Adriane de Moraes Pinto,
  • Ana Guerrero,
  • Antônio Alves de Melo Filho,
  • Vany Perpétua Ferraz,
  • Gisele Maria Fagundes,
  • James Pierre Muir

DOI
https://doi.org/10.1371/journal.pone.0248499
Journal volume & issue
Vol. 16, no. 3
p. e0248499

Abstract

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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) 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.