期刊
FOOD CHEMISTRY
卷 204, 期 -, 页码 108-114出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.02.088
关键词
Green extraction; Solvent-free microwave extraction; Pilot-scale reactor; Lettuce polyphenols
Microwave hydrodiffusion and gravity (MHG) technique has been applied to pilot-scale solvent-free microwave extraction (SFME) of polyphenols from Lettuce sativa. Following the dictates of green extraction and with the aim to save time and energy, the lab-scale knowledge on SFME was exploited for the development of a pilot-scale process. The investigation entailed the optimization of all main parameters (temperature, time, extracted water volume, etc.) and we showed that the polyphenols composition profile under SFME was similar to the classic methods though a bit lower in total content. The energy consumption in the optimized procedure (30 min) was 1 W/g of fresh matrix. (C) 2016 Published by Elsevier Ltd.
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