查询词典 extraction

Parameters for extraction of polyphenols from pu"er teaThe influence of temperature, heating time, ratio of tea to solvent, con centration and pH value of solvent on extraction rate of pu"er tea polyphenols were studied.

1普洱茶多酚浸提条件的优化以普洱茶为原料，研究浸提温度、浸提时间、料液比、溶剂浓度对普洱茶多酚提取率的影响。

To enhance the utilization of raw materials and Tenebrio molitor protein extraction rate, selection of these two enzymes for the enzyme extraction.

为提高原料利用率和黄粉虫蛋白提取率，选择这两种酶为提取用酶。

In short, this paper two methods of protein extraction studies, the initial establishment of the Tenebrio molitor protein extraction methods and the best technology, the development of Tenebrio molitor for the future of protein resources to provide a theoretical basis.

总之，本论文通过两种蛋白质提取方法的比较研究，初步确立了黄粉虫中蛋白质的最佳提取方法和工艺，为以后开发黄粉虫蛋白质资源提供了理论基础。

Temperature and 30 mL CO:. Under this condition, the highest ratio of rotenone can meet 0.359% counted with engineering calculation. For total compounds extraction. 6000psi. 70癈. 40mL and the ratio is 10.06%. For rotenone content in total compounds. 3000psi. 35 癈. lOmL and the high content percent is 7.59%. So when conducting SC-CO: extraction of Tephrosia vogelii.

非洲山毛豆的SC-CO_2萃取应根据萃取目的选用相应的工艺条件SC-CO_2萃取非洲山毛豆生产杀虫剂，应选用压力5000psi，温度45℃，流量30mL的工艺条件；(5)通过夹带剂对萃取效果的影响研究，结果表明加入夹带剂可显著影响非洲山毛豆的SC-CO_2萃取效果。

The effects of four different solutions (methanol, ethanol, chloroform, and tetrachloromethane) for the extraction of paeonol were investigated. With the consideration of toxicity, extraction ratio, and the influence on separation, methanol was selected as extractant.

考察了甲醇、乙醇、氯仿、四氯化碳4种溶剂提取丹皮酚的效果，综合考虑提取剂毒性、提取率和对分离的影响，选择甲醇作提取剂。

Solvent Extraction method was applied to separate trace tin and trace germanium, which tributyl phosphate and tetrachloromethane became a kind of extractant, using counter synergistic extraction, and inorganic salt was used as salting-out.

主要是采用液-液萃取法，用磷酸三丁酯与四氯化碳作为混合萃取剂，利用反协同萃取，并加入无机盐作为盐析剂对微量锡与微量锗进行分离富集。

In order to isolar high quality DNA from Trichosanthes kirilowii Maxim leaves enriching polysaccharides and polyphenols, the effects of DNA extraction were studied with four different methods including CTAB regular method, CTAB subarea method, SDS regular method, Low pH extraction medium with high salts.

为了从富含多糖和多酚等次生代谢物质的栝楼叶片中分离出高质量的基因组DNA，以栝楼叶片为材料，对4种不同的DNA提取方法(CRAB常规法、CTAB区室法、SDS常规法、高盐低pH法)进行了试验研究，并首次采用CTAB区室法提取栝楼基因组DNA。

Objective: To optimize the preparation of Trimeresurus tea extraction process and the physical and chemical methods for clarification of the extract obtained in extraction technology to clarify the optimal conditions for a variety of conditions.

摘 要：目的：优化竹叶青茶制备的提取工艺并用物理及化学方法对提取液进行澄清，得到了提取澄清技术中各种条件的最优条件。

The method is simple,convenient,and this extraction procedure is helpful for further study of extraction technology of triterpene acids of Herba euphorbiae Humifusae.

提取方法操作简单、方便，为地锦草槲皮素提取工艺的进一步研究提供了依据。

The method is simple,convenient,and this extraction procedure is helpful for further study of extraction technology of triterpene acids of Herba euphorbiae Humifusae.

结果 用地锦草重量10倍量的体积分数为75%的乙醇作为提取溶剂，提取2 h，共提取3次为最佳方案。结论提取方法操作简单、方便，为地锦草槲皮素提取工艺的进一步研究提供了依据。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。