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https://hdl.handle.net/1822/43877
Título: | Optimization of autohydrolysis conditions to extract antioxidant phenolic compounds from spent coffee grounds |
Autor(es): | Ballesteros, Lina F. Ramirez, Mónica J. Orrego, Carlos E. Teixeira, J. A. Mussatto, Solange I. |
Palavras-chave: | Autohydrolysis Spent coffee grounds Phenolic compounds Antioxidant activity Extraction yield |
Data: | Abr-2017 |
Editora: | Elsevier |
Revista: | Journal of Food Engineering |
Citação: | Ballesteros, Lina F.; Ramirez, Mónica J.; Orrego, Carlos E.; Teixeira, J. A.; Mussatto, Solange I., Optimization of autohydrolysis conditions to extract antioxidant phenolic compounds from spent coffee grounds. Journal of Food Engineering, 199, 1-8, 2017 |
Resumo(s): | Autohydrolysis, which is an eco-friendly technology that employs only water as extraction solvent, was used to extract antioxidant phenolic compounds from spent coffee grounds (SCG). Experimental assays were carried out using different temperatures (160 to 200 °C), liquid/solid ratios (5 to 15 ml/g SCG) and extraction times (10 to 50 min) in order to determine the conditions that maximize the extraction results. The optimum conditions to produce extracts with high content of phenolic compounds (40.36 mg GAE/g SCG) and high antioxidant activity (FRAP = 69.50 mg Fe(II)/g SCG, DPPH = 28.15 mg TE/g SCG, ABTS = 31.46 mg TE/g SCG, and TAA = 66.21 mg -TOC/g SCG) consisted in using 15 ml water/g SCG, at 200 °C during 50 min. Apart from being a green technology, autohydrolysis under optimized conditions was demonstrated to be an efficient method to extract antioxidant phenolic compounds from SCG. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/43877 |
DOI: | 10.1016/j.jfoodeng.2016.11.014 |
ISSN: | 0260-8774 |
e-ISSN: | 0260-8774 |
Versão da editora: | http://www.journals.elsevier.com/journal-of-food-engineering/ |
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_46382_1.pdf | 4,54 MB | Adobe PDF | Ver/Abrir |