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The methods of improved CTAB,rapid CTAB,improved SDS and improved low pH medium were used for genomic DNA isolation in Carya cathayensis.The results indicated that the method of improved SDS was the most suitable one for Carya cathayensis genomic DNA isolation and the DNA isolated can be used for PCR reaction.

以山核桃嫩叶为材料,对分别用经过改良的SDS法、改良的CTAB法、简易CTAB法及改良的高盐低pH法提取的基因组DNA进行检测比较,结果显示,改良的SDS法更适合于山核桃基因组DNA的提取,此方法提取的DNA能很好地用于PCR扩增。

Total RNA is isolated from rice caryopses displaying different development status by using the methods of TRIZOL Regent, Guanidine Thiocyanate and improved SDS.

利用TRIZOL试剂快速提取法、异硫氰酸胍法和改良的SDS法提取不同发育时期水稻颖果的总RNA,并通过凝胶电泳、紫外分光光度法检测提取获得的RNA样品的品质。

The optimal extraction condition of flavonoids from the flower of Castanea mollissima Blume by different ways such as microwave,ultrasonic waves and heating circumfluence was discussed,and the extraction effect was compared.

探讨了微波萃取、超声波提取、常规加热回流等方法提取板栗花中黄酮类化合物的工艺,并对其提取效果进行对比。

The extraction of caudaside from Ornithogalum caudatum Ait by different methods was compared with caudaside yield as index.

为了确定提取虎眼万年青皂苷的最佳提取工艺,以虎眼万年青总皂苷得率为指标,比较了水煎煮、水超声、乙醇浸提和乙醇超声4种方法的提取效果。

It contains dozens of materials with unique physiological function and medicinal value, in addition to anti-Cancer (especially uterine cancer, ovarian cancer, liver cancer, breast cancer, prostate cancer, lymphoma), it also can regulate the human body function, enhance immunity,promote cell growth, clear heat and detoxify,, improve sleep, increase appetite, enhance skin elasticity, ease problem-microcirculation, protect liver, and is cholagogic and anti-aging,eliminate pigmentation.

紫杉醇酒是以曼地亚红豆杉枝条为原料,用高度酒浸泡蒸馏,采用现代科学技术&全量提取,脱毒精制&后得提取液,然后将提取液加入到38°— 52°高档优质粮食基酒中配置而成的一种兼具多功能保健作用的纯天然高档饮品。

The study on the extracting small experiment of Choleic acid, Glycocholic acid and Taurocholic acid.The extracting small experiments of Choleic acid, Glycocholic acid and taurocholic acid were studied by adopting deproteinizatio, depigmentation, extraction and column chromatographic fractionation.

提取胆酸、甘氨胆酸、牛磺胆酸的小试工艺研究采用脱蛋白、除色素、萃取、柱层析分离等方法开展了从牛羊混合胆汁中分离、提取和纯化胆酸、甘氨胆酸及牛磺胆酸三种有效成分的小试提取工艺研究。

The anti-microbial activity of active materials against valsa mail,fusarium oxysporum,coniothyrium diplodieua and aspergillus nidulans were measured in vitro.the results showed that active materials extracted using acetone,aether and petroleum ether presented fungistasis to different extent on the four pathogenic fungi and had the best effect to coniothyrium diplodieua.active material extracted using ethanol presented certain anti-microbial effect to fusarium oxysporum.the results also showed there were anti-microbial active material in the leaves of cichorium intybus and founded a base on the research and application.

然后以提取液为供试药剂,对苹果腐烂病菌、棉花枯萎病菌、葡萄白腐病菌、构巢曲霉病菌4种植物病原真菌进行离体活性测定。结果表明:丙酮、乙醚、石油醚的提取液对4种病菌均有不同程度的抑制作用,其中对葡萄白腐病菌抑制效果最好;乙醇的提取液对枯萎病菌具有一定的抑制作用。表明菊苣叶中存在抑菌活性成分,补充了菊苣抑菌活性的研究内容,为该种植物抑菌活性成分的研究和应用奠定基础。

Study on cobaltous recovery from cathode leachate of lithium-ion battery by salting out ;2. Then further study was made on extracting pectin from the orange skin by means of salting out with mixed salt for the best condition investigation.

通过浸取、碱溶依次从柑橘皮中提取出橙黄色素、橙皮甙后,利用混合盐析的方法进一步做提取果胶的研究与探讨,对提取果胶的最佳条件进行摸索,并测定这种物质的含

The SWE technique seems a promising method for the extraction of alkaloids from Coptis chinensis Franch in industry.

亚临界水提取法较传统溶剂提取法,提取时间缩短,避免了使用有机溶剂造成的污染,可用于黄连生物碱的工业化提取

In the course of establishing standard operating procedure, The temperature, time , the feasibility without decorticating and efficiency were investigated when alliinase was deactivated used a dry heating apparatus in tunnel type, but the efficiency can be achieved less than 70%, need to be improved; The reformative cribriform plate has been proved to be good in practice result in pulping enzyme-deactivated garlic without dehulling; The extraction efficiency achieved more than 90% when volumic ratio of 20% alcohol and water is 3 I 1 and 2:1 was adopted to extract alliin two times respectively; During exact filtration, the ratio of diatomite in precoating and filtration was 3% and 1% respectively, the losses of alliin adsorbed by diatomite in extraction solution were not remarkable. In the stage of alliin isolation by ion exchange resin, three simple and sensitive detected measures were successfully adopted to control the whole process; the efficiency of alliin isolation was similar to laboratory results; The alliin yield was over 50% in acidic fractions and the purity quotient of alliin achieved above 50% after drying; Furthermore, the phenomenon was found that losses of alliin were seriously affected by the temperature and time periods in concentration.

在制定中试生产标准操作规程中,考察了隧道式干热烘干机杀酶的温度、时间和效率,干热灭酶效率只能达到70%,待改进;改良的筛板使带皮打浆效果良好,证明非脱皮熟蒜打浆的可行性,减少了工序,降低了成本;提取过程中,20%酒精分别1∶3和1∶2提取2次,效率达90%以上;硅藻土板框过滤时,探索了精滤过程中提取液中预涂和过滤时硅藻土的比例分别为3%和1%,并考察硅藻土对蒜氨酸的吸附损失,滤液澄明度良好,蒜氨酸损失很少;在树脂吸附分离阶段,采用三种简便灵敏检测手段控制生产过程,分离蒜氨酸的效果与实验室一致,酸性流分中蒜氨酸收率可达50%以上,干燥后蒜氨酸纯度达50%以上;试验发现浓缩蒜氨酸洗脱液时温度和浓缩时间对蒜氨酸损失的具有很大影响。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。