超微粉碎在孔石莼多糖提取中的应用

研究超微粉碎技术在孔石莼（Ulva pertusa）多糖提取中的可行性。分别用超微粉碎后提取和常规提取两种方法提取孔石莼多糖，在不同条件下比较其提取率和所得产品的质量。结果表明，超微粉碎后的孔石莼在125℃提取4h收率达到17．39％，与常规方法比较其收率提高28．8％，主要化学组分及其含量没有差异，红外图谱也表明，两种方法所得的孔石莼多糖其主要官能团没有差异，说明超微粉碎技术在孔石莼多糖提取过程中的应用是可行的，它除了保持孔石莼多糖的品质外，可在较易控制的条件下提高其提取率。

The application of supermicro-pulverization to the extraction process of ulvan

The application of supermicro-pulverizatio to the polysaccharide extracted from Ulva pertusa was studied. At different temperatures and different heating times, the comparisons of the yields and properties of polysaccharide from comminuted seaweed and that of uncomminuted one were made. It proved that the yield of polysaccharide from comminuted seaweed attained to 17.39 %, and it increased 28.8 % compared with that uncomminuted at 125~C and heating 4 h. The primary components and content had no change. Infrared spectroscopy proved that the primary groups had no change, so the results suggested that the technique of supermicro-pulverization was feasible at extraction of polysaccharide form U. pertusa. The technique can increase yield at simple conditions, and keep the properties of ulvan.