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EnglishMicrowave-assisted extraction (MAE) was investigated for recovering of total phenolic compounds from dried waste grape skins using a domestic microwave oven. Influence of vessel geometry, irradiation cycles, irradiation power and time was investigated. The results in terms of phenolics yield, antioxidant capacity and energy consumption were compared with a reference solid-liquid extraction (SLE) carried out for 2 h at 60°C. Equivalent yield of total phenolics as in SLE was achieved with a MAE extraction time of 1,033 sec (corresponding to 83 sec of irradiation at 900 W, 83% saving in extraction time compared to SLE and with a 70% energetic efficiency). Pre-maceration of samples and solvent pre-heating are proposed for large-scale industrial processes to enhance phenolics extraction and process efficiency.
Pedroza, M. A., Amendola, D., Maggi, L., Zalacain, A., De Faveri, D. M., Spigno, G., Microwave-assisted extraction of phenolic compounds from dried waste grape skins, <<INTERNATIONAL JOURNAL OF FOOD ENGINEERING>>, 2015; 11 (3): 359-370. [doi:10.1515/ijfe-2015-0009] [http://hdl.handle.net/10807/70073]
| Autori: | ||
| Titolo: | Microwave-assisted extraction of phenolic compounds from dried waste grape skins | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1515/ijfe-2015-0009 | |
| Data di pubblicazione: | 2015 | |
| Abstract: | Microwave-assisted extraction (MAE) was investigated for recovering of total phenolic compounds from dried waste grape skins using a domestic microwave oven. Influence of vessel geometry, irradiation cycles, irradiation power and time was investigated. The results in terms of phenolics yield, antioxidant capacity and energy consumption were compared with a reference solid-liquid extraction (SLE) carried out for 2 h at 60°C. Equivalent yield of total phenolics as in SLE was achieved with a MAE extraction time of 1,033 sec (corresponding to 83 sec of irradiation at 900 W, 83% saving in extraction time compared to SLE and with a 70% energetic efficiency). Pre-maceration of samples and solvent pre-heating are proposed for large-scale industrial processes to enhance phenolics extraction and process efficiency. | |
| Lingua: | Inglese | |
| Rivista: | ||
| Citazione: | Pedroza, M. A., Amendola, D., Maggi, L., Zalacain, A., De Faveri, D. M., Spigno, G., Microwave-assisted extraction of phenolic compounds from dried waste grape skins, <<INTERNATIONAL JOURNAL OF FOOD ENGINEERING>>, 2015; 11 (3): 359-370. [doi:10.1515/ijfe-2015-0009] [http://hdl.handle.net/10807/70073] | |
| Appare nelle tipologie: | Articolo in rivista, Nota a sentenza |
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| File | Descrizione | Tipologia | Note | Licenza | |
|---|---|---|---|---|---|
| ijfe-2015-0009.pdf | Versione Editoriale (PDF) | Nessuna Nota | Non specificato | Administrator |
http://hdl.handle.net/10807/70073
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