思茅松树皮中寡聚原花色素提取的初步研究

A Preliminary Study on Extraction of Oligomeric Proanthocyanidins from the Bark of Simao Pine

摘要: 以甲醇、50%甲醇、70%丙酮及50%丙酮等为溶剂,石油醚为沉淀剂从思茅松树皮中提取了寡聚原花色素。以寡聚原花色素标准品为对照,比较了提取物与标准品的红外光谱,并通过紫外光谱法对提取物中寡聚原花色素的含量进行了测定,结果表明:上述溶剂均可从思茅松树皮中提取寡聚原花色素,提取率分别为1.08%、1.41%、1.78%和2.53%。

Abstract: Oligomeric proanthocyanidins(OPCs) were prepared from the bark of Simao pine by extraction with solvents such as methanol,50% methanol,70% acetone and 50% acetone, and precipitation of petroleum ether. The extracts were compared with the OPCs reference material from Tianjin Jianfeng Company by IR spectrum. The OPCs contents in extracts were determined by UV method. The results showed that the OPCs could be extracted from Simao pine bark with all above solvents. The extraction yield was 1.08%,1.41%,1.78% and 2.53%,respectively.