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According to the frequently used methods of extraction and isolation of natural products from organic body, the freeze-dried ascidian body was exhaustively extracted with methanol/toluene ( 3 : 1 ) and then the combined extracts were filtered and the solvent was separatelyconcentrated under vacuum.

按照目前比较常用的天然产物提取分离方法，将样品冷冻干燥后，用甲醇：甲苯(3：1)浸泡，收集滤液，减压蒸馏得到的浓缩液用NaNO_3水溶液萃取，收集水相，减压浓缩至NaNO_3晶体析出。

Method］ The antimicrobial activities of the ethanol extracts from 33 edible spice plants against Trichoderma viride, Aspergillum flavus, Aspergillum niger and Escherichia coli were studied in vitro using method of punching.

方法］以绿色木霉、黄曲霉、黑曲霉、大肠杆菌为供试菌，采用打孔法对33种香料植物的无水乙醇提取物进行体外抑菌试验。

The main component consists of natural hamamelis extract, snow lotus, angelica, aconite, safflower, red peony root, Chinese waxgurd seed, gingko fluid, chamomile extract, lipin balance fluid, astrictive etc a variety of vegetal extracts.

主要成份天然金缕梅提取液、雪莲、白芷、白附子、红花、赤勺、冬瓜仁、银杏液、甘菊精华、油脂平衡液、收敛剂等多种植物萃取精华。

Methods A series of experiments using the attractant extracts of different main components of Laminaria were conducted at different temperatures and humidity conditions.

提取和分离海藻主要成分，在不同温度、湿度条件下，用不同成分提取物对钉螺进行诱食实验。

DNA extracts were generated from an aurochs humerus bone sample recovered from a cave site located in Derbyshire, England and radiocarbon-dated to 6,738±68 calibrated years before present.

都柏林大学的研究人员利用一种最近开发出来的DNA测序技术从野牛的骨骼中提取出大量的遗传信息。

Studies on the autointoxication of Chinese fir show that the aqueous extracts of surface soil, leaf litter, half decaying leaf litter, fresh leaf, branch, bark and root in pure Chinese fir plantation and their polyvinyl pyrrolidone k30 solutions affected the seed germination of Chinese fir, Raphanus sativous and water convolvulus.

对杉木自毒作用研究表明，杉木纯林中的土壤、枯落叶、半分解枯落叶和杉木鲜叶、枝条、树皮、树根的水浸液及其添加乙烯吡咯啉酮k30 的溶液对杉木种子、空心菜种子和萝卜种子的萌发均有影响。

These extracts were basically produced from bakers or brewers yeast using a simple autolysis procedure.

这时，面包和啤酒酵母抽提物基本上是简单的自溶法生产。

By mid 1970's, the use of enzymes to enhance the autolysis process was first started in order to improve extract yield and flavor properties of the yeast extracts and to bring down the cost of production.

七十年代中期，为提高酵母抽提物的产量并改善其风味从而降低产品成本，酶在自溶中被使用了。

Yeast extracts are produced by a process called autolysis, which is essentially a self-digestion of the yeast, which requires the mediation of several endogenous hydrolytic enzymes.

酵母抽提物是采用自溶工艺生产的，这是酵母自我消化的过程，它要求几种酵母内源水解酶进行作用。

Methods Using Vibrio eoralliilyticus, Vibrio tubiashii, Vibrio parahaemolyticus and Vibrio earehariae as the tested bacteria, the inhibition zone and the minimal inhibitory concentration were measured. Results The extracts, extracted with ethyl acetate from the leaves of Nerium indicum Mill., Mangifera indica Linn., Melia azedarach L.

采用纸片法和试管法，以溶珊瑚弧菌、塔氏弧菌、副溶血弧菌、鲨鱼弧菌为供试菌株，测定中草药不同极性萃取部分的抑菌圈和最小抑菌浓度。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。