当前旅游已经成为我国民众休闲娱乐的主要方式之一,尤其是沿海旅游城市更是受旅游民众喜爱.为此,沿海城市在其空间设计时,既要加强城市空间设计的美观感,又要将其变成深受游客喜爱地网游打卡圣地.这就要求沿海城市在景观空间设计过程中,应将滨海文化与城市景观设计优化结合,因此凸显滨海城市的美丽风景.本文将对以滨海文化在城市景观空间设计的应用策略进行浅显探析.

以水解度为指标,比较7种蛋白酶对方格星虫的水解效果.在单因素试验考察的基础上,采用Box-Behnken模型响应面设计,建立方格星虫蛋白酶解的二次回归模型,确定最佳的水解条件.结果表明,复合蛋白酶对方格星虫蛋白的水解效果最佳,最佳水解条件为:酶与底物比为7.8％,酶解时间为4h,酶解温度为50℃.该条件下,方格星虫蛋白的水解度达到24.81％.

基于文献检索,概述了近年来皱瘤海鞘的化学成分和生物活性研究进展,从中发现了结构独特的化合物和具有强生物活性的有效部位,尤其水溶性部位的抗病毒活性显示潜在的药用价值.

The chemical constituents and their antitumor activities of Chinese gorgonian coral Euplexaura rhipidalis were preliminarily investigated in order to find more novel marine active ingredients.The ethanolic extract of E.rhipidalis was separated by repeated silica gel column chromatography,Sephadex LH-20column chromatography and HPLC,by which three compounds were afforded.They were elucidated as three highly oxidized cembranoid diterpenoids:corulloidolide A(1),(1 R,3S,4S,7E,11E)-3,4-epoxycembra-7,11,15-triene(2)and(-)-corulloidolide E(3)by spectroscopic methods(NMR,MV)and by comparing with literatures.Compound 3showed strong cytotoxicity to five strains of cancer cells including HepG2,Hep3B,MCF-7/ADR,PC-3he and HT-116with the IC50of less than 10μg/mL.It was proposed that cembranoid diterpenoids should be one kind of the bioactive substances of gorgonian coral Euplexaura rhipidalis.

环境艺术课程建设是高职院校开展社会服务,是区域经济社会发展的客观要求,也是学校自身生存发展的需要,环境艺术课程的建设可有效加强高职院校服务地方的职能。