查询词典 hydroxy-ketone

A process for an enzymatic production of vitamin B6 which comprises incubating 1-deoxy-D-threo-pentulose and 4-hydroxy-L-threonine with an enzyme reaction system prepared from cells of microorganism belonging to genus Rhizobium, Sinorhizobium, Flavobacterium, Chryseobacterium, Lactobacillus, Arthrobacter, Bacillus, Klebsiella, Escherichia, Pseudomonas, Stenotrophomonas, Enterobacter, Serratia, Corynebacterium, Brevibacterium, Exiguobacterium, Saccharomyces, Yamadazma, Pichia and Candida, in the presence of NADP+, NAD+, ATP.

一种维生素B6的酶促生产方法，包括在NADP＋、NAD＋、ATP的参与下，将1－脱氧－D－苏－戊酮糖和4－羟基－L－苏氨酸与从属于以下属的微生物细胞制备的酶反应体系一起温育，所述微生物属是根瘤菌属、中华根瘤菌属、黄杆菌属、金黄杆菌属、乳杆菌属、弓形菌属、芽孢杆菌属、克雷伯氏菌属、埃希菌属、假单胞菌属、寡养单胞菌属、肠杆菌属、沙雷氏菌属、棒杆菌属、短杆菌属、微小杆菌属、酵母属、Yamadazma、毕赤酵母属和假丝酵母属。

This paper studies the synthesis of the Philippines from 9-hydroxy fluorene -9 - formic acid to its bromide process.

本文研究了由菲醌合成9-羟基芴-9-甲酸到其溴代的过程。

This paper studies the synthesis of the Philippines from 9-hydroxy fluorene -9 - formic acid to its bromide process.

谁有时间来给翻译一段话谢谢！~~^_^摘要：本文研究了由菲醌合成9-羟基芴-9-甲酸到其溴代的过程。

In this review, the biosynthetic pathway of ginsenosides was introduced and the research progress on enzymes related to ginsenoside biosynthesis , such as 3-hydroxy-3-methyl-glutaryl-CoA reductase, geranyl pyrophosphate synthase, farnesyl pyrophosphate synthase, was summarized in detail.

本文综述了人参皂苷的生物合成途径，并介绍了3-羟基-3-甲基戊二酸CoA还原酶、牻牛儿基二磷酸合成酶、法尼基二磷酸合成酶等人参皂苷合成途径相关酶的研究进展。

Mandelic acid has the advantage of being a larger sized molecule compared to most other alpha hydroxy acids, including one of the more widely used ones, glycolic acid.

扁桃酸具有的优势，作为一个较大规模的分子相比，大部分其他α羟基酸，其中包括更广泛使用，乙醇酸。

Ethoxy-4-hydroxy mandelic acid was synthesized from glyoxylic acid and o-ethoxyphenol in alkaline solution.

在碱性条件下由乙醛酸和邻乙氧基苯酚合成了3-乙氧基-4-羟基苯乙醇酸。

Two needle-shaped crystal chemicals were identificated from a plateau plant Halenia elliptica D. Don. Some analysis methods, such as EA, MS, NMR, FTIR and UV spectrometly, as well as melting point analysis, were used for the characterization of them, results showed that they were 1,3-dihydroxy-4,5,8-trimethoxyxanthone and 1-hydroxy-2,3,4,8-tetramethoxyxanthone.

提取并鉴定高原植物椭圆叶花锚的全草中2种针状结晶化合物；采用元素分析、核磁共振波谱、质谱、红外光谱、紫外光谱、熔点测定等分析方法，对其化学结构进行表征；产物分别为1，3-二羟基－4，5，8-三甲氧基酮和1-羟基－2，3，4，8-四甲氧基酮。

Three dimensional (3D) honeycomb-like porous structures made up of nanoslices of hydroxy cupric phosphate heptahydrate Cu8(PO3OH2(PO4)4·7H2O single crystals were constructed by a facile assistant surface oxidation technology. The pore size of the 3D structure ranges from hundreds of nanometers to two micrometers, and the thickness of the two dimensional (2D) nanoslices is about 50~100 nm. The wettability of the porous surfaces was transformed from superhydrophilic to superhydrophobic by chemical modification with octadecanethiol or PDES.

相对于硬脂酸修饰表面，氟硅烷修饰表面对水滴具有更低的接触角滞后和较低的黏着，这可能是因为氟硅烷比硬脂酸具有更低的表面自由能所致。2、利用酸辅助的表面氧化技术制备了由Cu8(PO3OH)2(PO4)4·7H2O单晶组成的三维蜂巢状多孔结构，孔尺寸约为几百纳米到2微米，二维的纳米片厚度为50~100 nm。

By adopting the method of stepwise synthesis, this paper synthetizes 1,3 - diaminopropanein 2-Hydroxy-3-methoxybenzaldehyde Zn-Sm heteronuclear bimetallic in Anhydrous methanol solution.

6楼本文采用分步合成的方法，在无水甲醇溶液中合成了1，3-丙二胺缩邻香兰素Zn-Sm异核双金属配合物。

By adopting the method of stepwise synthesis, this paper synthetizes 1,3 - diaminopropanein 2-Hydroxy-3-methoxybenzaldehyde Zn-Sm heteronuclear bimetallic in Anhydrous methanol solution.

本文采用分步合成的方法，在无水甲醇溶液中合成了1，3-丙二胺缩邻香兰素Zn-Sm异核双金属配合物。

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。