探索了湘西刺葡萄皮渣提取色素后果胶的联产提取工艺条件，并对提取所得果胶产品进行品质检测。结果表明，以0．05mol／L的稀H2S04为提取剂，料液比为1：10，pH值为2．5，在80℃条件下提取1h，提取2次，提取效果最好。产品得率为9．82％，半乳糖醛酸含量为68．86％。联产工艺用溶剂法从刺葡萄皮渣中提取的果胶产品4项指标优于国家标准，2项指标弱于国家标准。%The technical conditions of combined extraction of pectin from grape peel and pomace were investigated and the quality of the ex- tracted pectin was evaluated. 0.05 mol/L dilute H2SO4 was used as extracting agent, the ratio of raw materials and liquid was 1：10（g：mL）, pH value was 2.5, 1 h extraction was carried out twice with temperature at 80℃, and the best extraction effects could be achieved with product yield as 9.82 % and the content of galacturonic acid as 68.86 %. By the solvent method, the result showed that the extracted pectin had 4 indexes superior to the national standards and 2 indexes inferior to the national standards.
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