查询词典 methylglyoxal

Firstly, the molybdenum based catalysts modified by silver, phosphorus, vanadium using aluminum oxide as carrier were studied. The results showed that its catalytic performance for 1,2-propane glycol oxidation to methylglyoxal is good.

论文首先对以氧化铝为载体，在银、磷、钒修饰下的钼系催化剂进行了研究，通过实验发现该催化剂对丙二醇氧化制备丙酮醛具有高的催化活性和较好的选择性。

Methods VECs were isolated from human umbilical vein and incubated with two kinds of dicarbonyl compounds,3-deoxyglucosone (3-DG) or methylglyoxal.

方法从人脐静脉分离VEC并与不同浓度的二羰基化合物共同培养。

As for acetalation, we research the effects of acid kinds, acid quantity, temperature solvents on it and get the conclusions that the optimized acid is sulfuric acid, the optimized temperature is 65 °C, the reaction time is five hours, and the material ratio of sulfuric acid to methylglyoxal to methanol is 0.028:1:6.837.

在醛保护一步中，研究了酸种类、酸用量、温度及其溶剂的影响，得到了本反应的较好条件是：酸为浓硫酸，反应温度为65℃，反应时间为5小时，浓硫酸：丙酮醛：甲醇的配比为0.028：1：6.837，反应收率可达81%。

Application of Put or methylglyoxal -bis （MGBG, an inhibitor of S-adenosyl-L-methionine decarboxylase） exhibited an opposite effect.

说明通过品种选育和化学调控等途径增加籽粒Spd和Spm浓度或降低Put浓度，可以在一定程度上改善稻米的加工品质和外观品质。

Using the chemical reaction route selection method proposed by the authors, a reaction route of using commercial methylglyoxal as the starting material to produce Furaneol was chosen.

今采用作者提出的化学反应路径选择因子对呋喃酮的合成方法进行计算比较，确定了以丙酮醛为原料，通过偶联反应合成中间体苏式3，4-二羟基-2，5-己二酮，再由成环反应制备产物呋喃酮的合成路线。

A strain producing 2-oxoaldehyde reductase was isolated from LB culture medium containing methylglyoxal. By analyzing its physiological and biochemical characters, and 16S rDNA sequence, it was identified as S. maltophilia and named as Stenotrophomonas inaltophilia YL.

用含甲基乙二醛的LB培养基平板筛选到1株能代谢甲基乙二醛的细菌，通过对克隆到的16S rDNA基因序列比对及生理生化实验，将其鉴定为嗜麦芽寡养单胞菌，命名为Stenotrophomonas maltophilia YL。

Raw enzyme was extracted after the bacteria were ultrasonically broken, and its 2-oxoalde-hyde reductase activity was detected by HPLC and UV absorbency spectrum in the presence of NADH and methylglyoxal as a substrate.

破碎该菌细胞后提取粗酶，以甲基乙二醛作反应底物，在还原性辅酶Ⅰ存在条件下，紫外光谱和HPLC的分析表明，该菌能代谢甲基乙二醛；并对其产酶条件进行了研究。

Despite Dr Molan's attempts to discredit MGO manuka honey, a scientific paper by another University of Waikato academic will later this year confirm methylglyoxal is the dominant antibacterial constituent of manuka honey .

尽管Molan博士企图诋毁MGO麦卢卡蜂蜜，怀卡托大学的另外一个学者所做的科学研究将在今年晚些时候证实甲基乙二酸是麦卢卡蜂蜜产生抗菌性的主要因素。

The results indicated isoprene was soon consumed under the condition of excess ozone. During the reaction, the major carbonyl products formed were methyl vinyl ketone, methacrolein, methylglyoxal, and formaldehyde. Formic acid, CO and CO2 were also among the products.

在反应温度(294±2)K，压力为1.01×10^5Pa空气，O3过量的条件下，异戊二烯很快反应完全，反应中生成的羰基产物主要包括甲基丙烯醛、甲基乙烯基酮、丙酮醛和甲醛；产物中还包括甲酸、一氧化碳和二氧化碳。

The main gluconeogenic precursor in kidney is thought to be lactate; however, less is emphasized enantiomerically. L-lactate is a glycolysis end-product, but D-lactate is formed after detoxification of methylglyoxal, which is the main source of advanced glycation end-products.

乳酸为肾脏糖质新生的主要来源，其含有一不对称碳，故具有D-、L-乳酸两种镜相异构物，而D-、L-乳酸两者之生成相当不同，L-乳酸是糖解作用之终产物，D-乳酸为体内一醣化终产物(advanced glycation end-products)─甲基乙二醛进行去毒化反应所生成，目前缺乏对乳酸镜像异构物与肾脏糖质新生间相关的探讨。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。