乙醇提取八角茴香油工艺的研究

The Technological Study of Extracting Star Anise Oil with Ethanol

研究了用 95 %乙醇提取八角茴香油的最佳工艺条件 .比较了索氏 (热回流 )提取法与冷浸取法的效果 .索氏提取法最佳工艺条件是 :料剂比 (g/ml)为 15∶10 0回流 4h ;冷浸取法料剂比(g/ml)为 5∶10 0 ,室温浸泡 4d ,两者均不必调 pH值 .用重量法测蜡和胶体的含量 ,用傅立叶变换红外光谱仪鉴定其成分 .发现索氏提取法周期短 ,效率较高 ,产品杂质较少 ,由此可见 ,索氏提取法优于冷浸取法 .

The paper studies the best technological conditions of extracting star anise oil with 95% ethanol.The result compares the Suo recovery(hot refluxing)with cold immersing.The best technological condition is material ratio 15g/100ml and refluxing for four hours with the Suo recovery,and that is material ratio 5g/100ml for four days with cold immersing.Both don′t regulate pH.The wax and colloid are weighed and their content are measured with the FTIR.The result shows that the Suo recovery has the benefits of short period,high efficiency,low foreign matter.It is better than the cold immersing.