In this study, cranberry pomace was consecutively fractionated by supercritical carbon dioxide (SC−CO₂) and pressurized liquid (PLE) extraction for the recovery of lipophilic and polyphenolic fractions. Process parameters were optimized by response surface methodology (RSM), ethanol (EtOH) and water were used in PLE. The highest yield (11.10 ± 0.15 %) in supercritical fluid extraction (SFE) was obtained at 42.4 MPa pressure, 53 °C temperature and 158 min. Linoleic (36.58 %), linolenic (32.44 %), oleic (21.79 %) and palmitic (4.36 %) acids were the major fatty acids in the oil. PLE-EtOH at optimal conditions (83 °C, 3 × 15 min) recovered 55.89 % of soluble material while PLE-H₂O (130 °C, 3 × 10 min) of the residue added 6.5 % of extract. PLE-H₂O extract was the strongest antioxidant, however PLE-EtOH recovered the major part of polyphenolics. PLE-EtOH effectively recovered anthocyanins and procyanidins. Peonidin-3-galactoside was the major anthocyanin, followed by peonidin-3-arabinoside. The results create a platform for’ zero waste’ processing of cranberry pomace at the industrial scale.

在这项研究中，蔓越莓果渣通过超临界二氧化碳（SC-CO ₂）和加压液体（PLE）萃取连续分馏，以回收亲脂性和多酚性馏分。通过响应表面方法（RSM）优化了工艺参数，在PLE中使用了乙醇（EtOH）和水。在42.4 MPa压力，53°C温度和158分钟的超临界流体萃取（SFE）中获得最高收率（11.10±0.15％）。油中的主要脂肪酸为亚麻酸（36.58％），亚麻酸（32.44％），油酸（21.79％）和棕榈酸（4.36％）。在最佳条件（83°C，3×15分钟）下，PLE-EtOH回收了55.89％的可溶性物质，而残留物的PLE-H ₂ O（130°C，3×10分钟）则添加了6.5％的提取物。PLE-H ₂O提取物是最强​​的抗氧化剂，但是PLE-EtOH回收了多酚的主要部分。PLE-EtOH有效地回收了花青素和原花青素。Peonidin-3-galactoside是主要的花色苷，其次是peonidin-3-arabinoside。结果为工业规模的蔓越莓果渣“零浪费”加工提供了平台。