查询词典 ethanol

While the best performance on the amount of three less polar constituents, such as acacetin, chrysin and wogonin were obtained by using 60-95 % ethanol.

另外，acacetin，chrysin 及wogonin等三个极性较低的活性成分，则可在60-95 %酒精浓度及温度333 K下，具有最佳的抽取量。

Their structures were elucidated on the basis of chemical and spectral analysis. RESULTS: Twelve compounds were isolated from the 95% ethanol extract of the aerial parts of L.rotata. Their structures were identified as luteolin (1), luteolin 7-O-β-D-glucopyranoside (2), apigenin (3), apigenin 7-O-β-D-glucopyranoside (4), apigenin7-O-6-(E-p-coumaroyl-β-D-galactopyranoside (5), tricin (6), acacetin (7), genkwanin (8), lamiophlomiol A (9), lamiophlomiol B (10), shanzhiside methyl ester(11)and syringic acid (12), respectively.

结果：从独一味地上部分的乙醇提取物中分离得到了12个化合物，分别鉴定为木犀草素(1)、木犀草素7-O-β-D-吡喃葡萄糖苷(2)、芹菜素(3)、芹菜素7-O-β-D-吡喃葡萄糖苷(4)、芹菜素7-O-（6-反式－对－香豆酰基）－β-D-半乳糖苷(5)、小麦黄素(6)、刺槐素(7)、芜花素(8)、独一味素A(9)、独一味素B(10)、山桅苷甲酯(11)及丁香酸(12)。

Primary extract the active elements from the root,stem and foliage of Artemisia annua L with petroleum ether (30~60℃), petroleum ether (60~90℃), ethanol, acetone and water were carried out in laboratory, then further separation of active elements was detected by column chromatography, and then the separated elements′acaricidal activitie was measured against Tetranychus cinnabarinus.

采用石油醚（30~60℃）、石油醚（60~90℃）、乙醇、丙酮和水等5种溶剂对采自6月份的黄花蒿的根、茎、叶分别进行活性成分的初步提取，然后用柱层析进行分离检查，并进一步用分离得到的组份对朱砂叶螨进行生物测定。

Compounds were extracted by 90% ethanol-petroleum ether and acetoacetate, then purified by silica gel column chromatography.

采用硅胶柱层析进行分离纯化，根据理化性质和波谱学数据进行结构鉴定。

Acetobacter and Gluconobacter can be allowed to oxidize the ethanol to acetic acid and form a wine vinegar .

醋酸杆菌和葡萄糖酸菌可以用来氧化乙醇而得醋酸形成一种葡萄酒醋。

Then identify the separated bacteria according to its shape feature and the physiological biochemical reaction results. As the result a strain of bacteria which could consume ethanol efficiently was selected and identified as Acetobacter.

在以乙醇为唯一碳源的培养基中培养，用梯度驯化法筛选高效利用乙醇的菌株，并通过形态特征和生理生化实验进行菌属鉴定。

Gas chromatography was employed to quantify the output of metabolization,and it was found that the yield of diacetyl for the mutant UV-3 was 18.7 fold to the wild-type 10293,up to 1.045g·L~(-1).Acetoin and ethanol yields were decreased by 48.4%and 71.4%,respectively.The yield of acetate was increased by 34.6%.

利用气相色谱测定代谢产物量，分析诱变前后菌株代谢途径中碳源的流向，结果表明突变株UV-3的丁二酮产量提高18.7倍，达到1.045g/L，乙偶姻产量降低48.4%，乙醇产量降低71.4%，乙酸产量提高34.6%，且遗传性质稳定。

Results Six compounds were isolated from the ethanol extracts of Acrostichum aureurm,and their structures were elucidated as ponasterone A(1),pterosterone(2),kaempferol(3),quercetin(4),4-(3,4-dihydroxyphenyl)-2-butanone(5),and daucosterol(6),respectively.

结果从卤蕨乙醇提取物中分离得到6个化合物，分别鉴定为ponasterone A(1)、pterosterone(2)、山奈酚(3)、槲皮素(4)、4-(3，4-二羟基苯基)-2-丁酮(5)、胡萝卜苷(6)。结论6个化合物均为首次从该植物中分离得到。

Efficacious drugs were made of these species for treatment of cough, phlegm, breathe heavily, especially, to cure lung disease. We have investigated on the Chemical constituents of Adenophora stenanthina subspecies xifengsis collected from Gansu Qingyang, and twenty four compounds were isolated from ethanol extraction by chromatography technigues. Twenty compounds were identified by means of chemical and spectra methods（IR, FAB-MS, EI-MS,〓,〓, DEPT , among which three compounds were new as 3βvanilloyloxy-stigmast-5-ene-7β-one; 3β-Vanilloyloxy-stigmast-5-en-7 β-ol; 3β-vanilloyloxy-stigmast-5-en-7β, 15 〓-diol.

我们对采自甘肃庆阳的西峰沙参Adenophorastenanthina subsp.xifengensis）进行了化学成分的研究，利用现代层析手段从该植物的乙醇浸膏中分离出二十四个化合物，经化学方法和波谱技术（红外，质谱，核磁共振谱）鉴定了二十个化合物的结构，其中三个为新的化合物，它们分别是：豆甾-5-烯-7-酮-3β-香草酸酯；7β-羟基-豆甾-5-烯-3β-香草酸酯；7β，15ξ-二羟基-豆甾-5-烯-3β-香草酸酯。

The results showed that either of the extracted propolis had significant inhibitory effect on the level of triglyceride, total cholesterol, LDL-C,GPT and GOT in serum, and TC, TG and MDA in liver, but were ineffective on HDL-C, MDA, SOD and NO levels in serum. Ethanol extracted propolis also reduced the body weight, liver weight and liver index of hyperlipidemic SD rats, while water extracted propolis were adiaphorous.

结果表明：蜂胶醇提液和水提液均能有效抑制高脂血症SD大鼠血清中的甘油三酯、总胆固醇、低密度脂蛋白、谷丙转氨酶、谷草转氨酶的升高，并且能有效抑制肝脏组织中的TC、TG、MDA的升高，但对血清中的高密度脂蛋白、超氧化物歧化酶、丙二醛、一氧化氮的影响不明显；蜂胶醇提液能有效降低高脂血症SD大鼠的体重、肝重及肝指数，蜂胶水提液对体重、肝重及肝指数的影响则不显著。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新