Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/83792
Título: | Chitosan coating functionalized with flaxseed oil and green tea extract as a bio-based solution for beef preservation |
Autor(es): | Mendes, Cíntia G. Martins, Joana T. Lüdtke, Fernanda Luisa Geraldo, Ana Pereira, Alfredo Vicente, A. A. Vieira, Jorge M. |
Palavras-chave: | Packaging Meat Essential oils Textural parameters Lipid oxidation Shelf-life analysis |
Data: | 29-Mar-2023 |
Editora: | Multidisciplinary Digital Publishing Institute (MDPI) |
Revista: | Foods |
Citação: | Mendes, Cíntia G.; Martins, Joana T.; Ludtke, Fernanda; Geraldo, Ana; Pereira, Alfredo; Vicente, António A.; Vieira, J., Chitosan coating functionalized with flaxseed oil and green tea extract as a bio-based solution for beef preservation. Foods, 12(7), 1447, 2023 |
Resumo(s): | Ecological and safe packaging solutions arise as pivotal points in the development of an integrated system for sustainable meat production. The aim of this study was to assess the effect of a combined chitosan (Ch) + green tea extract (GTE) + essential oil (thyme oil, TO; flaxseed oil, FO; or oregano oil, OO) coating on the safety and quality of vacuum-packaged beef during storage at 4 °C. An optimized bio-based coating formulation was selected (2% Ch + 2% GTE + 0.1% FO) to be applied to three fresh beef cuts (shoulder, Sh; knuckle, Kn; Striploin, St) based on its pH (5.8 ± 0.1), contact angle (22.3 ± 0.4°) and rheological parameters (viscosity=0.05 Pa.s at shear rate > 20 s−1). Shelf-life analysis showed that the Ch–GTE–FO coating delayed lipid oxidation and reduced total viable counts (TVC) and Enterobacteriaceae growth compared with uncoated beef samples over five days. In addition, Ch–GTE–FO coating decreased total color changes of beef samples (e.g., ∆E*=9.84 and 3.94, for non-coated and coated Kn samples, respectively) for up to five days. The original textural parameters (hardness, adhesiveness and springiness) of beef cuts were maintained during storage when Ch–GTE–FO coating was applied. Based on the physicochemical and microbial characterization results, the combination of the Ch–GTE–FO coating developed was effective in preserving the quality of fresh beef cuts during refrigerated storage along with vacuum packaging. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/83792 |
DOI: | 10.3390/foods12071447 |
e-ISSN: | 2304-8158 |
Versão da editora: | https://www.mdpi.com/journal/foods |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_56144_1.pdf | 13,62 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons