查询词典 vanillin

Eight hydrazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, 2-hydroxy-1-naphthaldehyde with nicotinic or isonicotinoyl hydrazide in anhydrous ethanol respectively; Three thiosemicarbazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, o–hydroxyacetophenon with thiosemicarbazide in hydrous-ethanol respectively.

主要包括以下五部分的工作： 1、以水杨醛、邻香草醛、邻羟基萘甲醛、邻羟基苯乙酮分别与烟酰肼和异烟酰肼按1：1的比例在无水乙醇中反应，制备了八种酰腙类Schiff碱；以水杨醛、邻香草醛、邻羟基苯乙酮与氨基硫脲在水-乙醇混合溶剂中反应，合成了三种Schiff碱配体，并对Schiff碱配体的结构进行了表征。

The results showed that vanillin had the inhibition effect intensively, the minimum inhibition concentration of vanillin against E. coil was 0.23%, Bacillus subtilis was 0.26%, Saccharomyces was 0.14%, and Aspergillus was 0.14% and Mucor rouxii was 0.03%.

结果表明，香兰素有较强的抑菌性，对大肠埃希菌的最低抑制浓度为0.23%，枯草芽胞杆菌为0.26%，酵母菌为0.14%，黑根霉和毛霉分别为0.14%和0.03%。

As of 2001, the annual demand for vanillin was 12,000 tons, but only 1800 tons of natural vanillin was produced.

截至2001年，每年的需求量为12000吨，香草，但只有1800吨天然香兰素生产。

BENEFITS OF VANILLIN, LIKE MANY POLYPHENOLS FOUND IN PLANTS, VANILLIN HAS ANTIOXIDANT AND ANTI-TUMOR ACTIVITY.

香草好处，像许多发现植物多酚，具有抗氧化、香草抗肿瘤活性。

Condition optimization for its efficient fermentation was also carried out. The reaction and separation system with the addition of resin HD-8 and the isoeugenol/aquoeus biphasic system of the biotransformation of isoeugenol to vanillin by Bacillus fusiformis CGMCC1347 were set up. The isolation and purification of isoeugenol and vanillin in both systems were studied. The reuse of the immobilized cells in biphasic system was successfully applied.

SW-B9的基础上，对该菌株进行了生理生化特性鉴定以及16S rDNA序列分析，命名为纺锤芽孢杆菌CGMCC1347；继而对该菌株的发酵条件进行了研究，首次建立了纺锤芽孢杆菌CGMCC1347转化异丁香酚生成香草醛的树脂分离耦合体系和异丁香酚—水两相体系，同时对此二体系的底物和产物的分离提取进行了研究，成功实现了两相体系中固定化细胞的反复利用。

The biotransformations of isoeugenol to vanillin with various strains available in our lab were tested. It was found that several baterica including Bacillus subtilus 7658, Alcaligenes AS1.7617, Brevibacterium flavum 1.7a and Brevibacterium flavum AS1.013 could convert isoeugenol to vanillin.

对实验室所保藏的细菌、放线菌、真菌进行初步筛选发现细菌中枯草芽孢杆菌7658、粪产碱杆菌AS1.7617、黄色短杆菌1.7a、黄色短杆菌AS1.013能产生少量香草醛，最高浓度为0.31 g/L；放线菌中诺卡氏菌Nocardia sp。

The results showed that in the growth period of R. glutinosa, soil ferulic acid, vanillic acid, and vanillin contents had a persistent increase, while β-hydroxybenzoic acid content increased first but decreased then. The addition of ferulic acid (8 μg·ml-1), vanillic acid (08 μg·ml-1), vanillin (12 μg·ml-1), and β-hydroxybenzoic acid (30 μg·ml-1) in water culture had stronger inhibitory effects on R. glutinosa root length, root mass, fresh plant mass, and plant height. Treating with test phenolic acids except β-hydroxybenzoic acid increased leaf chlorophyll content significantly, compared with the control. After treated with test phenolic acids, plant SOD and POD activities decreased after an initial increase, and plant malondialdehyde content increased. In the treatment of ferulic acid, root SOD and POD activities were the lowest, and roots were rotted and dead.

结果表明：阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加，而对羟基苯甲酸含量先升高后降低；外加阿魏酸（8 μg·ml-1）、香草酸（0.8 μg·ml-1）、香草醛（1.2 μg·ml-1）和对羟基苯甲酸（3.0 μg·ml-1）对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用；酚酸处理使地黄叶片叶绿素含量降低，除对羟基苯甲酸外差异性极显著；经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降，丙二醛含量升高，其中阿魏酸的处理使根中酶活性降至最低，根部腐烂死亡。

5 % vanillin acetum and perchloric acid as color developer, the content of ursolic acid of kudingcha growed in Hainan province was determined at 548 nm.

用5％香草醛冰醋酸及高氯酸显色，在波长548nm处用分光光度法测定了海南苦丁茶中的熊果酸含量。

The result indicates that those four resuscitation-inducing aromatic herbs mainly contain volatile oil ,and all contain alicyclic compounds; the volatile oil of Borneolum Syntheticum and Styrax both contain Sesquiterpenes of caryophyllene; as resin herbs , Styrax and Benzoinum both contain vanillin, resin ester and balsamic acid .

结果表明，四味芳香开窍药主含挥发油，均含有脂环化合物，并存在一些共有成分，如龙脑冰片与苏合香挥发油中均含有倍半萜类成分石竹烯；苏合香和安息香皆为树脂类中药，两者均含有香荚兰醛成分，尚含树脂酯，香脂酸等。

by summarizing and analysing the progress on studies of pharmacodynamic material basis of resuscitation-inducing aromatic herbs such as moschus,borneolum syntheticum,styrax,benzoinum, and exploring the generality of those herbs,to provide scientific reference for further studies on the relevance of common substance ,nature and the efficiency of restoring consciousness and inducing resuscitation of those herbs.the result indicates that those four resuscitation-inducing aromatic herbs mainly contain volatile oil ,and all contain alicyclic compounds; the volatile oil of borneolum syntheticum and styrax both contain sesquiterpenes of caryophyllene; as resin herbs , styrax and benzoinum both contain vanillin, resin ester and balsamic acid .

通过对芳香开窍药麝香、冰片、苏合香、安息香的药效物质基础研究进展的整理、分析，探索其共性，拟为深入研究该类药的共性物质—药性—开窍醒神效应之间的关联性提供科学参考。结果表明，四味芳香开窍药主含挥发油，均含有脂环化合物，并存在一些共有成分，如龙脑冰片与苏合香挥发油中均含有倍半萜类成分石竹烯；苏合香和安息香皆为树脂类中药，两者均含有香荚兰醛成分，尚含树脂酯，香脂酸等。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。