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The effects of every main factors on extraction ratio are discussed, and the optimum conditions of extraction effective components from zizyphus jujuba are determined with the orthogonal test. Optimum conditions are obtained by using a new method of H2O2-decoloring in alkalescent condition, and effects of correlation factors on decoloring ratio are discussed. The yield ratio of polysaccharide is above 5.26% under these optimum conditions.

首先研究了不同提取过程中各因素对多糖提取率的影响,结合正交实验确定了微波最佳提取工艺条件;然后采用双氧水弱碱性条件下脱色新工艺,并对脱色各影响因素对多糖脱色率的影响进行了讨论,最终得出最优脱色条件,使多糖得率达到5.26%以上。

A study on extraction of pectin from gardenia peel was carried out.

对栀子皮提取果胶的方法进行了研究,先用水提取水溶性果胶,再用酸水解法提取水不溶性果胶。

But the abstracts from different organs differed in agglutinating ability. The extracts from fugu liver didn't have obvious blood type specificity, while that from ovary did.

但不同部位提取的活性物质凝集活性不同,在测试的红细胞中,从肝脏提取的活性物质没有明显的血型专一性,而从卵巢提取的活性物质具有血型专一性。

Result: Make sure the best condition to obtain total flavonoids was extraction by sonication and defatting 3 times with an 15 times volume of petroleum benzin.

结果:优化工艺为:以超声的方法,15倍量石油醚脱脂30min,重复3次;再用6倍量80%乙醇提取,第一次提取2h,第二次提取1.5小时。

Extracted DNA by CTAB, in proportion to the additions of PVP and β-mercap toethanol to the extraction buffer were capable of preventing browning from taking place in the extraction, Tris-Phenol (Stabilized with 0.1M Tris, pH 8.0)/Chloroform/isoamyl alcohol were used to remove protein and impurity in the second extraction, during crude DNA used to Isopropanol DNA and deterged by DNA detergent, without using RNase remove RNA, we detected the quality and concentration of DNA respectively for normal leaves and drought stress leaves by Agarose gel electrophoresis of genomic DNA and ultraviolet spectrometry photo.

用20%聚乙二醇(polyethylene glycol,PEG6000)模拟干旱,采取CTAB提取缓冲液,按一定比例加入PVP和β-巯基乙醇,用Tris平衡酚-氯仿-异戊醇除去蛋白质及杂质,在粗提时用异丙醇沉淀DNA,并用DNA洗液(10mmol/L醋酸铵,75%乙醇)洗涤DNA,在纯化时用乙醇沉淀DNA,且没有加入RNase去除RNA的方法,分别提取2个品种正常和干旱胁迫的苹果属叶片总DNA,并对提取的DNA进行琼脂糖凝胶电泳和紫外分光光度计检测。

The result reveals that, The cow colostrums contains a large number of the somatic cells: SCC is 200,000 /mL, the activity of the milk somatic cell is 60% byusing Trypan blue exclusion. This somatic cell can be used to carry on the cell ulav analysis and RNA extraction, the integrality and purity quotient of the extracted RNA can be used for prefabricating cDNA.

结果:牛初乳中含有大量的体细胞(SCC为20万/mL,台盼蓝拒染测得活力为60%),可以利用提取的体细胞进行细胞分析以及RNA的提取,所提取RNA的完整性和纯度可以用来合成cDNA,看家基因GAPDH扩增条带清晰。

Draw and add the solvent only to once, recycle in a set of sealed equipment, the solvent in the dregs of a decoction can be retrieved out basically, so solvent consumption than many of draw pot to be 30% more than less only, the consume can reduce 50-70%, it is better for draw with the organic solvent, active principle in the sublimating of the traditional Chinese medicine.

提取只加1次溶剂,在一套密封设备内循环使用,药渣里的溶剂基本上能回收出来,故溶剂用量比多只提取罐少30%以上,消耗率可降低50~70%,这为用有机溶剂提取,提纯中药中有效成份铺平了道路。

The research into ways of extraction of genomic DNA of Jinhua pear indicated that improved CTAB was the best way to extract genomic DNA of pears, with the dose of 0.10g/g of Vc added when the sample is triturated,.

2经金花梨基因组DNA提取方法研究表明,磨样时在鲜样中添加0.10g/g的Vc而进行改良的CTAB法是提取梨DNA的最佳方法,嫩芽是最佳提取材料,其次是新梢和成熟叶片。

Compared the extraction effects of yellow pigment from the corn protein powder by 95 %ethanol,isopropanol,chloroform,acetone,ac-Etylace,petroleum benzene,distilled water.

利用索氏提取法比较95%乙醇、异丙醇、氯仿、丙酮、乙酸乙酯、石油醚和蒸馏水提取玉米粗蛋白粉黄色素的效果,结果发现95%乙醇为最佳溶剂,95%乙醇提取液λmax为446nm。

The results of GC-MS analysis showed that eight fatty acids are found in apple seed oil, and the content of unsaturated fatty acids is 89.39%....

气质联用分析结果表明,苹果籽油中含有8种脂肪酸,其中不饱和脂肪酸占89.39%;与索氏提取法对比,超声波辅助提取是一种可靠、高效的提取苹果籽油的方法。

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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。