Valorisation of grape pomace: Fractionation of bioactive flavan-3-ols by membrane processing
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- 作者：Usman Taqui Syeda ; Carla Brazinhaa ; c.brazinha@fct.unl.pt" class="auth_mail" title="E-mail the corresponding author ; Joã ; o G. Crespoa ; Jorge M. Ricardo-da-Silvab
- 关键词：A ; membrane area [m2] ; Ci ; feed(t=0) ; concentration of compound &lsquo ; i&rsquo ; in the feed stream ; Ci ; feed(t) ; concentration of compound &lsquo ; i&rsquo ; in the retentate stream ; Ci ; perm ; concentration of compound &lsquo ; i&rsquo ; in the permeate stream ; D ; diafiltration volume [&ndash ; ] ; GAE ; gallic acid equivalents ; Lp ; permeate flux per transmembrane pressure [L/(m2 ; h ; bar)] ; MWCO ; molecular weight cut off of membranes ; Ri ; apparent rejection of compound &lsquo ; i&rsquo ; [%] ; t ; time of
- 刊名：Separation and Purification Technology
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：172
- 期：Complete
- 页码：404-414
- 全文大小：2564 K
文摘
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Effective production of extracts rich in monomeric flavan-3-ols from grape pomace.
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An extraction process using 40 wt% ethanol/water, at 40 °C for 3 days was selected.
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A Duramem 900 nanofiltration membrane operated in a diafiltration mode was selected.
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Detailed chemical characterisation of extracts and membrane fractions was performed.
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Re-use of solvent (ethanol in water), used in diananofiltration, by reverse osmosis.