The fractionation of red wine grape pomace (RWGP) by subcritical water (SBW) extraction/hydrolysis was studied in a semi-continuous reactor. Different temperature programs were used, comprising ramps and plateaus at different temperatures, with different time lengths. Pressure was kept constant at 100 bar. A program applied to previously defatted RWGP (def-RWGP) featuring plateaus at 50, 100 and 190 °C allowed the recovery of virtually all of the hemicellulose, while leaving in the residue essentially all of the lignin and the cellulose. The latter was readily hydrolyzed enzymatically. When using whole RWGP, it was shown that over 85 % of the lipids remained in the residue. The RWGP extracts had contents of phenolic compounds up to 29 g/100 g_extract, and were rich in hemicellulose-derived carbohydrates, mostly in the form of oligomers. The extracts exhibited an antioxidant capacity that compared favorably with that of gallic acid.

在半连续反应器中研究了亚临界水（SBW）萃取/水解对红葡萄酒果渣（RWGP）的分馏作用。使用了不同的温度程序，包括在不同温度下具有不同时间长度的斜坡和平台。压力保持恒定在100巴。应用于先前脱脂的RWGP（def-RWGP）的程序在50、100和190°C处于平稳状态，可以回收几乎所有的半纤维素，而残留物中基本上保留了所有的木质素和纤维素。后者容易被酶水解。使用完整的RWGP时，表明残留物中残留的脂质超过85％。RWGP提取物中的酚类化合物含量高达29 g / 100 g_提取物，并且富含半纤维素衍生的碳水化合物，大部分为低聚物形式。与没食子酸相比，提取物具有抗氧化能力。