查询词典 ethanol

On the basis of a brief introduction of the development history and operating principles of the ethanol continuous fermentation progress coupled with the separation by membrane, the fermentation mechanism, the fermentation technique, the fermentation way of celluloses are briefly narrated. And great emphasis is placed on the progress of ethanol continuous fermentation reviews.

在简述乙醇连续发酵与膜分离耦合过程的发展历史和技术实施基础上，介绍了纤维素类物质的发酵机制，发酵工艺，发酵方式，着重介绍了乙醇串联连续发酵过程。

Methods L9(34) orthogonal test was conducted to evaluate the effects of ethanol concentration, ethanol consumption, extraction duration, and extraction time on the extraction by using the content of four kinds of sanchinosides and the content of the total flavonoids in axillary choerospondias fruit that were included in the recipe of Danxinshu capsules. HPLC and ultraviolet spectrophotometry were used in the assay of cumarin.

分别采用高效液相色谱法和紫外分光光度法测定方中三七的3种皂苷的总含量及广枣的总黄酮的含量，以两者含量的综合评分为指标，采用正交实验考察乙醇浓度、乙醇用量、提取时间、提取次数4个因素对提取效果的影响。

Analysis of labelled ethanol desorbed at different temperatures indicated that the adsorbed ethanol did not take part in the coke formation.

吸附标记乙醇的升温脱附产物的分析结果表明，吸附态乙醇并不结焦。

Results showed that terpene-catechol resin could be synthesized directly with the proposed method.The synthesized terpene-catechol resin could be separated from terpene resin and catechol on neutral alumina column with petroleum,absolute ethanol and 5％ NaOH-ethanol solution as eluates.

采用柱层析法分离萜烯树脂和萜烯-邻苯二酚树脂，分别采用中性氧化铝和强碱性阴离子交换树脂作固定相，汽油、乙醇、NaOH-乙醇溶液作洗脱剂对萜烯树脂和萜烯-邻苯二酚树脂进行分离提纯。

The eluents were water, 10%, 20 %, 30 % and 50 % ethanol respectively and they flowed through the macroporous resin one by one with five times of the column volume. The obtained eluent of 50 % ethanol was evaporated and the content of total flavonoids was 76 % measured by HPLC.

结果 选择AB-8大孔树脂；最佳纯化工艺为上样液总黄酮质量浓度 60 mg·L-1，pH 5.0，温度 25 ℃；最佳洗脱方式是用5倍柱体积的水及体积分数分别为10 %、20 %、30 %的乙醇依次洗脱，弃去洗脱液后再用5倍柱体积的体积分数为50 %的乙醇洗脱；HPLC法测定总黄酮的含量为76 %。

Results Total astragalosides were mainly in 40%-80% ethanol parts eluted by different concentration ethanol.

结果60%乙醇提取树脂吸附后用不同体积分数乙醇洗脱，黄芪总皂苷主要集中在40%~80%乙醇部位。

Comparision on antibacterial activity of ethanol extracts of clove bud and clove fruit in vitro;2. The results showed that ethanol extracts from C.

法测定了油茶叶乙醇提取物的抗氧化活性，并与芦丁、二丁基羟基甲苯进行了比较，在波长517nm、反应时间40min的条件下测定了DPPH。

The results showed that the proportion of water and ethanol, the guar gum, the stearic acid all had a greater influence on the property of synthetic film. The optimum filming conditions were: soy protein isolate 5.0%, the proportion of water and ethanol 80:20, guar gum 0.25%, stearic acid 0.3%.

研究结果表明：水与乙醇的体积比、瓜尔豆胶含量、硬脂酸含量对复合膜的性能有较大影响，制备大豆蛋白复合膜技术条件为，大豆分离蛋白浓度为5.0%，水与乙醇体积比为80：20，瓜尔豆胶加量为0.25%，硬脂酸加量为0.3%。

In order to research and evaluate the safety of food packaging of plasticizer Di-2-ethylhexyl phthalatein PVC film, the migration rate of DEHP from PVC film into water food simulants (distilled water, 65% aqueous ethanol, 20% aqueous ethanol, 4% aqueous acetic acid) was studied at 17, 30, 40, 50 and 60℃ by Gas Chromatography.

为了研究评判PVC膜中增塑剂邻苯二甲酸二异辛酯在食品包装中的安全性，采用气相色谱仪测试了几种水性溶剂（蒸馏水、65%乙醇、20%乙醇、4%乙酸）在不同温度（17℃、30℃、40℃、50℃、60℃）下对PVC膜中增塑剂DEHP的溶出率。

The results show that DEHP can migrate into all water food simulants from PVC film and the migration rate was the highest in 65% aqueous ethanol with the range 0.85%～6.31% and a big increasing amplitude when contacting temperature over 30℃, the rate was lower in 20% aqueous ethanol and distilled water with the range 0.19%～0.45% and 0.19%～0.37%, respectively; and the rate was the lowest in 4% aqueous acetic acid with the picked out rate 17% and the value ＜0.4%.

研究结果表明，PVC膜中DEHP在几种水性溶剂中均有溶出，在65%乙醇中溶出率最大，范围为0.85%～6.31%，当浸泡温度超出30℃后，溶出率增幅较大；在20%乙醇和蒸馏水中的溶出率较小，范围为0.19%～0.45%和0.19%～0.37%；4%乙酸对DEHP的溶出作用最小，70个样品中，检出率为17%，检出溶出率。4%。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了