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https://hdl.handle.net/1822/47425
Título: | Encapsulation of antioxidant phenolic compounds extracted from spent coffee grounds by freeze-drying and spray-drying using different coating materials |
Autor(es): | Ballesteros, Lina F. Ramirez, Monica J. Orrego, Carlos E. Teixeira, J. A. Mussatto, Solange I. |
Palavras-chave: | Spent coffee grounds Encapsulation Freeze-drying Spray-drying Phenolic compounds Antioxidant activity |
Data: | 15-Dez-2017 |
Editora: | Elsevier |
Revista: | Food Chemistry |
Citação: | Ballesteros, Lina F.; Ramirez, Monica J.; Orrego, Carlos E.; Teixeira, José A.; Mussatto, Solange I., Encapsulation of antioxidant phenolic compounds extracted from spent coffee grounds by freeze-drying and spray-drying using different coating materials. Food Chemistry, 237, 623-631, 2017 |
Resumo(s): | Freeze-drying and spray-drying techniques were evaluated for encapsulation of phenolic compounds (PC) extracted from spent coffee grounds. Additionally, the use of maltodextrin, gum arabic and a mixture of these components (ratio 1:1) as wall material to retain the PC and preserve their antioxidant activity was also assessed. The contents of PC and flavonoids (FLA), as well as the antioxidant activity of the encapsulated samples were determined in order to verify the efficiency of each studied condition. Additional analyses for characterization of the samples were also performed. Both the technique and the coating material greatly influenced the encapsulation of antioxidant PC. The best results were achieved when PC were encapsulated by freeze-drying using maltodextrin as wall material. Under these conditions, the amount of PC and FLA retained in the encapsulated sample corresponded to 62% and 73%, respectively, and 73-86% of the antioxidant activity present in the original extract was preserved. |
Tipo: | Artigo |
Descrição: | Supplementary data associated with this article can be found, in the online version, at http://dx.doi.org/10.1016/j.foodchem.2017.05.142. |
URI: | https://hdl.handle.net/1822/47425 |
DOI: | 10.1016/j.foodchem.2017.05.142 |
ISSN: | 0308-8146 |
Versão da editora: | http://www.elsevier.com/locate/issn/03088146 |
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_46805_1.pdf | 2,46 MB | Adobe PDF | Ver/Abrir |