本文主要对玉米芯木聚糖的提取，水不溶性木聚糖的硫酸酯化条件，酯化衍生物的抗凝血活性及抗凝血机制等进行了研究。
Theisolation of corn cob xylan the sulfated reaction condition of water insoluble xylan the anticoagulant activity of xylan sulfate and the anticoagulant mechanism werestudied in this paper.
考察了硫酸浓度、浸渍时间、焙烧温度、焙烧时间对催化剂活性和反应时间对酯化反应的影响。
The effects of sulfuric acid concentration, immersing time and the temperature and time of baking on catalytic activity and the reaction time on esterification were studied.
目的昆布多糖进行硫酸酯化后，对产物结构进行分析，为研究其生物活性奠定物质基础。
Objectives to sulfate the laminarin, then analyze the structure of polysaccharide sulfate, so as to make a foundation for the further research about its biological activity.
亚硫酸盐法制浆过程中活性化学物质是二氧化硫、硫酸以及酸性亚硫酸钙。
The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite.
结果硫酸镓催化活性高，易分离回收，操作简单，后处理方便，重复使用性良好。
Results Gallium sulfate had high catalytic activity and could be recovered easily, operated simply, post-treated conveniently and used repeatedly.
本文以油酸为原料经过适当的途径合成饱和油酸乙醇酰胺硫酸酯钠，并测定其表面活性性能。
This paper has studied the synthesis of sodium saturated oleic acid ethanolamine sulfate from oleic acid by proper synthetic route and determined Its surface-activity.
论述了硫酸烷基化废酸的处理方法，并用来生产活性白土。
The treatment of the waste acid was discussed from sulfuric acid alkylation plant, and it was utilized to produce active clay.
目的：对昆布多糖进行硫酸酯化，并对产物的纯度与结构进行分析，为研究其生物活性奠定物质基础。
Objectives: to sulfate the laminarin, then analyze the purity and elucidate the structure of polysaccharide sulfate, so as to make a foundation for the further research about its biological activity.
褐藻糖胶是存在于褐藻中的硫酸酯多糖，具有多种生物活性。本文综述了褐藻糖胶的提取、纯化和分级等方面的研究工作。
Fucoidan is a sulfated polysaccharide from brown seaweed, which has a variety of biological activities. the studies on the extraction, purification and fraction of fucoidan are summarized.
这些结构确定、序列明确的硫酸寡糖，为进一步从分子水平上探讨其结构与活性关系提供了基础数据。
All these structural determined sulfated oligosaccharides offered basic data and will be further used, from the molecular lever, in the structure -activity study.
比较了六水三氯化铁、五水四氯化锡和一水硫酸氢钠催化合成橙花素的催化活性。
Compared the catalytic activity of ferric chloride hexahydrate, stannic chloride pentahydrate and sodium bisulfate monohydrate for synthesis of nerolin bromelia.
褐藻糖胶是一种从褐藻中提取的硫酸多糖，是一种天然活性物质，具有许多药用功能。
Fucoidan, which is a polysaccharide sulfate obtained from brown seaweed have proved to be a potent clinical agent.
把这种方法叫做“硫酸盐法”是有错的，因为它表示蒸煮液中的活性化学物质是硫酸盐，然而事实上是氢氧化钠和硫化钠。
The term "sulfate" is therefore misleading, since it implies that sulfate is the active cooking agent, whereas it is actually sodium hydroxide and sodium sulfide.
用磷酸麝香草酚酞中释放麝香草酚酞方法检测碱性磷酸酶ALP活性用硫酸茜红素染色法检测基质矿化。
Alkaline phosphatase (ALP) activity was evaluated by thymolphthalein release from thymolphthalein monophosphate and matrix mineralization by staining with alizarin red S.
介绍了硫酸活化秸杆炭黑制备活性秸杆炭素与化学氧化法结合处理印染废水的反应机理及处理效果。
The reaction mechanism and treatment effect of treating dyeing wastewater by activated carbon from straw by sulfuric acid adsorption - oxidation method are introduced.
结果表明，硫酸氢钠的催化活性良好。
硫酸基含量对多糖的生物活性起着至关重要的作用。
The content of sulfated group in polysaccharides functions importantly on their biological activities.
运用红外表征手段对活性抑制后的催化剂表面进行研究，发现有微量的硫酸盐生成。
IR characterization showed that there was traced sulfate formed on surface of the catalyst after its activity was inhibited.
纤维素硫酸酯(CS)是一种硫酸酯化多糖衍生物，具有抗凝血等多种生物活性。
Cellulose sulfate (CS) is a sulfated polysaccharide derivative, which shows a variety of biological activities such as anticoagulation etc.
通过分析硫酸盐激发粉煤灰活性的水化反应过程和机理，比较研究硫酸盐对粉煤灰活性激发的差别及其原因。
Through analysis of the hydration process and mechanism of sulfate activating fly ash, this paper studies on comparison of the cause and the difference on activation effect.
选取硫酸钾作为激发剂对天然硬石膏进行活性激发，并分别掺入硅酸盐水泥与半水石膏进行改性。
Choosing potassium sulfate as an activator to stimulate the activity of natural anhydrite, and modified its properties by adding Portland cement and hemihydrate gypsum respectively.
本文介绍采用络合酸浸法以废甲醇催化剂为原料制备五水硫酸铜和活性氧化锌的新工艺。
A new process which produce copper sulfate pentahydrate and activated zinc oxide from the used catalyst by soaking in complex acid has been introduced in this paper.
综述了近几年硫酸化多糖的制备及其生物活性的研究情况。
The progresses on preparation of sulfated polysaccharides and its bioactivity were reviewed.
结果表明，硫酸铁铵的催化活性良好。
硫酸盐硫含量太高将大大降低催化剂的芳构化活性。
But the aromatization reactivity of the catalysts will be inhibited if they contain too much sulfate sulfur.
因此对红枣多糖进行硫酸化修饰，可以提高其自由基清除活性并产生新的活性。
These results suggest that sulfation can improve the free radical scavenging activity of Ziziphus jujube fruit polysaccharide and lead to the generation of new activity.
因此对红枣多糖进行硫酸化修饰，可以提高其自由基清除活性并产生新的活性。
These results suggest that sulfation can improve the free radical scavenging activity of Ziziphus jujube fruit polysaccharide and lead to the generation of new activity.
应用推荐