查询词典 extraction

Comparing with conventional heating extraction, MAE of triterpene glucoside from Siraitia grosvenorii showed advantages of less time and high extraction rate.

微波辅助提取的提取时间为5min时，提取率达76.56%，而传统的加热提取时间为2h时，提取率为68.46%。

The optimum conditions were achieved and demonstrated as follows: ethanol solution (volume fraction as 60 %) as extraction solution, the ratio of materials to solution as 1:20, microwave power as 600 W and 2 mm extraction time. By the optimum conditions, the yield (83.7%) of flavone from Trollius chinensis Bunge was obtained at 83.7%.

实验结果表明：微波辅助提取金莲花黄酮的最佳工艺条件是体积分数60%乙醇为溶剂，每克料浸提剂体积为20mL，微波功率600W，温度60℃，提取时间2min。

The size of round bottom flask, temperature and water addition were the key of volatile oil extraction of C. uncinata, and addition of N-hexane was helpful for the extraction and collection of volatile oil.

圆底烧瓶的大小、温度及加水量是柱果铁线莲挥发油提取的关键，而添加正己烷有利于挥发油的提取与收集。

Steeped corn endosperm and unsoaked corn endosperm were used respectively for zein extraction. The results indicated that steeping was helpful for the extraction.

分别用浸泡过的整粒玉米和胚乳及未经浸泡的胚乳提取玉米醇溶蛋白，结果表明，浸泡有利于醇溶蛋白的提取。

Stems and leaves were determined and compared by al(no3)3 colorimetry and hplc. the method with ultrasonic wave was applied to extract flavonoids from the leaves and stems of urtica dioical l.. with the contents of flavonoids as the index, the best extraction conditions were selected out. results the best extraction conditions were as follows:soaking the raw material with ethanol(80%, v/v)-water solution (1∶30) at 60℃.

方法分别采用al（no3）3络合分光光度法和hplc法测定异株荨麻茎叶中黄酮类化合物的含量，并对测定结果进行比较；同时以黄酮类化合物的含量为指标，优选出了超声波辅助法提取异株荨麻茎叶中黄酮类化合物的最佳条件。

Ultrasonic extraction method of valeriana officinalis Linn natural perfume was studied The basic parameters of extraction technology were obtained.

通过超声萃取宽叶缬草天然香料的试验研究，得出了基本工艺参数，探讨了超声萃取过程中的工作机理，试验结果表明：超声萃取天然香料具有较显著的效果，值得进一步研究和开发。

The extraction procedure of crude protein from Vallisneria spiralis L. was to extract the crude protein with sodium hydroxide followed by precipitation with acid. Factors influencing the extraction rate were studied according to the experiments of odd factorsNaOH concentration,Vallisneria spiralis L.

采用碱提酸沉法从苦草中提取粗蛋白，通过单因子试验（单因素：NaOH溶液浓度、固液比、提取温度、提取时间）和L9（34）正交试验，对影响粗蛋白的提取工艺进行了研究；同时比较了不同pH值对粗蛋白沉淀的影响。

Venturia inaequalis ; DNA extraction method ; DNA extraction rate

苹果黑星病菌； DNA提取方法； DNA得率

Due to the lack of syntax structure of the information in web pages, especially in the semi-structure pages, the traditional natural language processing technology is not applicable to the web information extraction well. And web pages is recognized, explained and shown by browers and viewed by users, in which there is a lot of vison characters. So if the vision information in web pages can be used for information extraction, complex linguistic knowledge would be avoided.

由于Web页面的内容缺乏严格规范的语法结构，尤其是半结构化页面，所以传统的自然语言处理技术并不能很好地适用于Web信息抽取，另外Web页面被浏览器识别、解释和显示并供用户查看和理解，其中包含了大量的视觉特征，如果把Web页面的这种视觉信息应用于信息抽取，就可以避免使用复杂的语言学知识。

Study on ultrasonic-assisted extraction and physicochemical properties of red pigment in Zingiber mioga Rosc;2. Studies on the best extraction of red pigment from Paniculed Gold-rain tree fruit peel

变色玻璃曲otoehromi.glass在萦外尤联，光二中的蓝紫光辐照下，能够在可见光区域产生光吸收而着色，去除辐照后又可逆地回复其原始状态的一种玻璃jm业洛沽该

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。