| Texto completo | |
| Autor(es): |
Fernandes, R. P. P.
[1]
;
Trindade, M. A.
[2]
;
Lorenzo, J. M.
[3]
;
Munekata, P. E. S.
[2]
;
de Melo, M. P.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo FZEA USP, Coll Anim Sci & Food Engn, Dept Basic Sci, Ave Duque Caxias Norte 225, BR-13635900 Sao Paulo - Brazil
[2] FZEA USP, Dept Food Engn, Ave Duque Caxias Norte 225, BR-13635900 Sao Paulo - Brazil
[3] Ctr Tecnol Carne Galicia, Rua Galicia 4, Parque Tecnol Galicia, Orense 32900 - Spain
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FOOD CONTROL; v. 63, p. 65-75, MAY 2016. |
| Citações Web of Science: | 23 |
| Resumo | |
The aim of this study was to evaluate the effects of oregano natural extract added to sheep burgers packaged in a modified atmosphere for 20 days at 2 +/- 1 degrees C, seeking antioxidant properties and healthiness appeal. Antioxidant capacity of the oregano extract was determined by Folin-Ciocalteau, DPPH' and FRAP methods. Three treatments of burgers were prepared: without antioxidant (control, CO), with 50 ppm BHT and with 1000 ppm oregano extract (ORE). The proximate composition (moisture, fat, protein and ash) of the meat product was determined and its stability was assessed through physicochemical (pH value, colour, lipid and protein oxidation, free fatty acids and volatile compounds profile), microbiological {[}total viable counts (TVC), Pseudomonas spp., Enterobacteriaceae, lactic acid bacteria (LAB)] and sensory analysis (5-point rating scale). ORE treatment presented similar counts of TVC and LAB and, also, an equivalent capacity to slow lipid and protein oxidation after 20 days, in comparison to BHT. The total amount of volatile compounds increased during storage (P < 0.01) and all treatments showed a decrease (P < 0.001) on a{*} value. However, AE(0-20) was higher (P < 0.05) for CO treatment, indicating visual colour changes perceived by consumers. The presence of natural extract prevented the loss of sensory qualities in sheep burgers up to 15 days of storage, being that changes in off-odour were consistent with the microbial results that indicate burgers spoilage. In conclusion, oregano extract presented antioxidant effects quite similar to BHT and thus, can be considered a viable solution for the production of sheep burgers with a healthier appeal. (C) 2015 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 11/08093-2 - Uso de extratos antioxidantes naturais obtidos de ervas aromáticas na elaboração de produtos à base de carne ovina |
| Beneficiário: | Rafaella de Paula Paseto Fernandes |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 13/14120-8 - Uso de extrato antioxidante natural obtido de erva aromática na elaboração de embutido cozido defumado |
| Beneficiário: | Rafaella de Paula Paseto Fernandes |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |