ETP对苹卷蛾(Adoxophyes orana)生殖的影响

应用ETP4—[2—(叔丁基丁酰氧基)丙氧基]丁苯甲酸乙酯(5μg/头)处理苹卷蛾(Adoxophyes orana)五龄第三天幼虫,使雌蛾脂肪体变态滞后,体内卵黄原蛋白含量降低,滤泡细胞组织结构异常,卵巢管内滤泡数量减少,部分卵泡退化,雌蛾产卵力下降97％,卵不能孵化。     

单环刺螠（Urechis unicinctus）废弃内脏营养成分分析

对烟台市售单环刺螠废弃内脏进行了营养成分分析,结果表明:单环刺螠新鲜废弃内脏蛋白质含量为18.25%,脂肪含量为0.12%,总糖含量为4.09%,灰分为14.30%,Ca为2.10%,Mg为0.41%,Fe为0.32%,Zn为0.03%;对单环刺螠废弃内脏的脂肪酸分析发现,EPA、DHA和DPA均较为丰富,分别占总脂肪酸的21.61%、3.67%和56 24%.单环刺螠废弃内脏具有很好的开发利用价值.     

皱纹盘鲍齿舌扫描电镜下的形态观察

对皱纹盘鲍齿舌的着生位置、形状及各齿片的形状与连接，在扫描电镜下进行了较详细的观察，并发现其有磨损现象．     

罗氏海盘车海星皂甙的提取分离及其分析鉴定

用甲醇提取法和乙醇提取法从罗氏海盘车提取了海星总皂甙，其产率分别为０．０９％和０．１１％。产品绠化实验、溶血实验及紫外和红外光谱分析鉴定，证明提取物为海星总皂甙；总皂甙经薄层层析及柱层析分离出五种主要组分，其中两种初步断明为海星皂Ａ和海星皂甙Ｂ。     

Extraction and analysis of polyunsaturated fatty acid from Asterina pectinifera in Huanghai Sea

The full fats of Asterina pectinifera in Huanghai Sea were extracted and refined using solvent extraction combined with silica gel colmnn chromatography with yield of 1.64%. The full fats were analyzed by gas chromatography and the result indicated that the full fats from Asterina pectinifera contained abundant Polyunsaturated Fatty Acid （PUFA） with a total of 25 kinds, especially rich in EPA and DHA. After enrichment by silica gel colmnn chromatography, the total PUFA content in ligarine fraction is 42.20%, in which EPA and DHA account for 12.50% and 10.33% respectively. The total PUFA content in acetic ether fraction is 48.98%, in which EPA and DHA take up 17.53% and 6.59% respectively. The total amount of EPA and DHA in both fractions all exceeded that of the fish oil from deep sea. In conclusion, the Asterina pectinifera in Huanghai Sea is a favorable source of PUFA.     

砂海星酸性粘多糖的分离纯化

利用碱提法结合酶解法从砂海星中提取酸性粘多糖.粗品经三氯乙酸和二次酶解除蛋白后,用42%和80%的乙醇分级沉淀分别得到多糖Ⅰ和多糖Ⅱ,其总糖含量分别为71.6%、80.4%,蛋白质含量分别为1.52%和1.38%.多糖Ⅱ依次用离子交换层析(DEAE-52)和葡聚糖凝胶(G-50)进行分离、纯化,结果表明分子中带有比较均一的电荷,硫酸基离子鉴定反应为阳性,并且组分比较单一;用葡聚糖凝胶(G-100)对其分子量进行测定,其平均分子量约为12kD.