Chemical characterization, antioxidant activity and application of beetroot and guava residue extracts on the preservation of cooked chicken meat

Autor(es)

Packer, Viviane G. ^[1] ; Melo, Priscilla S. ^[1] ; Bergamaschi, Keityane B. ^[1] ; Selani, Miriam M. ^[1] ; Villanueva, Nilda D. M. ^[2] ; de Alencar, Severino M. ^[1] ; Contreras-Castillo, Carmen J. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Agroind Alimentos & Nutr, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Catolica Sedes Sapientiae, Fac Ingn Agr, Lima - Peru

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE; v. 52, n. 11, p. 7409-7416, NOV 2015.
• Citações Web of Science: 4

Resumo

Agro-industrial activities generate millions of tons of residues all over the world. Although many of them contain bioactive compounds, they are underexplored. Ethanolic extracts of beetroot stems (EEB) and guava pomace (peels, seeds) (EEG) were analyzed to assess their chemical composition (phenolic compounds and chemical profile by GC-MS) and antioxidant activity (EC50 and ABTS). Posteriorly, EEB and EEG were added to processed chicken meat, which was cooked and stored in vacuum and aerobic packages at 4 +/- 1 A degrees C for 14 days, to assess their oxidative stability and color. EEB presented higher content of phenolic compounds and antioxidant activity compared to EEG. Using GC-MS, we identified 11 phenolic compounds in EEB and EEG. When added to chicken meat, EEG and EEB retarded lipid oxidation compared to the control after 14 days of storage in aerobic packages. In general, in both packages the natural extracts proved to be as effective as BHT to maintain oxidative stability of chicken meat. (AU)

• Processo FAPESP: 08/55492-7 - Prospeccao e identificacao de compostos bioativos de residuos agroindustriais para aplicacao em alimentos e bebidas.
• Beneficiário: Severino Matias de Alencar
• Modalidade de apoio: Auxílio à Pesquisa - Regular