藜

Resveratrol (3,5,4'- trihydroxystilbene) was first isolated from the roots of white hellebore Veratrum grandiflorum O.

白藜芦醇( 3，5，4'三羟基二苯乙烯)最早是于1940年从白藜芦的根茎中分离所得。

A yellowish-white, amorphous powdered alkaloid, C36H51NO11, obtained from sabadilla seeds and from the rhizome of hellebore.

藜芦定一种略带黄色的非晶体的粉末状生物碱，c36h51no葎11，从沙巴草籽和藜芦根中提取

A yellowish - white,amorphous powdered alkaloid ,C36H51NO11,obtained from sabadilla seeds and from the rhizome of hellebore.

藜芦定一种略带黄色的非晶体的粉末状生物碱，C36H51NO？11，从沙巴草籽和藜芦根中提取

Many of the supplements on the market extract it from the Japanese knotweed plant, which is a plentiful and inexpensive source.

市场上的很多营养补充品都是从日本结草中提取白藜芦醇，而结草是一种既丰富又便宜的白藜芦醇。

Cevadine was isolated from Eranthis hyemalis and its effects on normal cats blood pressure, hypertension rats and their tolerance to cevadine were determined by using direct carotis and indirect arteria caudilis manometric methods.

从藜芦中提取分离出藜芦碱，采用颈动脉直接测压法和尾动脉间接测压法，测定了其对正常猫血压、高血压大鼠的影响及其快速耐受性。

The general method and microwave radiation Veratrum aldehyde synthesis comparison Abstract: Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

化学合成毕业设计翻译求解急！！用普通方法和微波辐射法合成藜芦醛的比较摘要：目的考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

The results of the rule of law with ordinary methylation by formaldehyde Veratryl three groups the average weight of 2.5609g, the average yield was 91.31%, the melting point of the three groups were 42.4 ~ 44.8 ℃, 41.5 ~ 45.2 ℃, 41.7 ~ 44.3 ℃, from the results of we can see that the three groups of the melt from the melting point greater than that which the product of the by-product of the detection of the melting point have a certain impact; and the legal system with microwave radiation by an average of Veratrum aldehyde quality 1.4016g, the average yield was 93.23 %, melting point of the three groups were 41.8 ~ 43.2 ℃, 41.3 ~ 42.6 ℃, 41.6 ~ 43.5 ℃, melting away from the three groups as compared with ordinary methods of measuring the melt-out from the small.

结果 用普通甲基化法制出来的三组藜芦醛平均质量为2.5609g，平均产率为91.31％，三组的熔点分别为42.4～44.8℃，41.5～45.2℃，41.7～44.3℃，从结果可以看出，三组熔点的熔距都比较大，证明产物当中的副产物对熔点的检测有一定的影响；而用微波辐射法制出来的藜芦醛平均质量为1.4016g，平均产率为93.23％，三组熔点分别为41.8～43.2℃，41.3～42.6℃，41.6～43.5℃，三组熔距较普通方法测出来的熔距小。

Resveratrol(trans-3,4',5-trihydroxystilbene) is a phytochemical which was synthesized in various plant species such as grapes, Veratrum and Polygonum cuspidatum.

白藜芦醇，化学名称为3，5，4'-三羟基反苯二烯，是一种主要存在于葡萄、藜芦、虎杖等植物中的多酚类化合物。

The purpose of the experiment is to realize the prokaryotic expression of β-glucosidase gene from Acetobacter xylinum ATCC 23769, which will be used to produce enzyme preparation so as to develop the efficiency of extracting resveratrol from plants. Aspergillus niger β-glucosidase gene is cloned both at DNA lever and cDNA lever, which will lay a foundation for further research about its expression in Saccharomyces cerevisiae in a secretory form with the aim of increasing resveratrol contents in wines.

本实验实现了木醋杆菌β-葡萄糖苷酶基因的原核表达，目的是为了生产粗酶制剂，用于提高从植物中提取白藜芦醇的得率；分别在DNA和cDNA水平从黑曲霉中克隆β-葡萄糖苷酶基因，为下一步在酿酒酵母中实现分泌表达以提高葡萄酒的白藜芦醇含量的研究奠定基础。

Twenty three troublesome weeds and five crops were tested to study specificity of helminthosporin. The result showed that 18 out of the 28 species were susceptible to the toxin. Chenopodium serotinum is the most susceptive, and D. sanguinalis, Polygonum aviculare, Beckmannia syzigachna, Chenopodium album and Alopecurus japonicus took second place.

该毒素在150μg/mL浓度下，对马唐胚根生长抑制率达44.59%；当毒素浓度达到200μg/mL时，叶绿素含量下降18.41%；在500μg/mL浓度下，毒素对供试的23种杂草产生的毒害程度不同，其中小藜对毒素最为敏感，其次为马唐、萹蓄、菵草、藜和日本看麦娘等恶性杂草。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。