生物合成

Acetoin is one of the widely-used flavors,which is mainly chemically synthesized and produced by microbe.

乙偶姻是一种应用广泛的食用香料，目前主要通过化学法合成和生物发酵法制备。

Alkylidene cycloketones such as aza-cycloketones are common features of many bioactive compounds. Few methods reported are effective to construct these motifs in a stereospecific and controllable manner.

芳亚烷基-环酮结构尤其是含有氮原子的3-亚烷基-哌啶-4-酮是生物活性小分子中一种较为常见的结构，对其合成方法的研究报道却很少，已知的方法具有很大的局限性。

Among the existing means to construct these synthetically and biologically important molecules, metal-mediated allylation and propargylation is one of the easiest and most convenient.

在现存的用来构建这些重要的合成子和生物分子的方法中，金属促进的羰基化合物烯丙基化和炔丙基化是最容易和最方便的。

The determination of cytokinin levels is a primary and basic approach in the cytokinin studies. The Amaranthus betacyanin bioassay was modified for the rapid and convenient determination of cytokinin activity. Meanwhile, the procedures for quantitative analyses of cytokinins by HPLC and ELISA were estabolished, and these gurantee the analyses of cytokinin levels with high precision.

在细胞分裂素的活性测定中，通过改进尾穗苋苋红素合成法建立了一种简便、准确的生物试法，同时还建立了根据物理化学和免疫学原理而测定细胞分裂素的HPLC和ELISA方法，使得细胞分裂素的定量更加准确。

Problems still exist for large-scale industrial production presently, new type of amaryllidaceae with high production capability of galanthamine should be developed and planted in large scale, biologic technology should also be applied to simplify the synthetic process and reduce cost.

认为目前工业化大规模生产尚存在问题，应运用生物技术手段，开发高产加兰他敏的石蒜品种，同时开展大规模种植；简化合成生产工艺、降低成本。

The detectable group, biotin-ε-aminocaproic acid N-hydroxysuccinimide ester, is attached to the remaining amino group. A series of multiamine compouds, i. e. ethylendiamine, 1, 6-hexandediamine, triethylenetetramine, tetraethylenepentamine, and synthetic polyarylamide are used inlabelling, it is found that linker arms and steric hindrance effect the detection sensitivity. The probes labeled by 1, 6-hexandediamine and triethylenetetramine can detect 0.1-0.5pg target DNA in dot blot hybridization, and their sensitivities are better than the others.

本文详细考察了乙二胺、己二胺、二乙烯三胺、三乙烯四胺、四乙烯五胺及合成的聚乙烯胺化合物对λDNA探针的标记和检测的影响，发现胺化物链长和空间位阻影响探针的杂交和检测，用己二胺和三乙烯四胺标记的生物素探针在杂交24小时、显色8小时后检测灵敏度达0.1-0.5pg，超过其它胺化物标记的探针。

In order to study functions of glutathione S-transferase theta during preparation and synthesis of fibroin in Antheraea pernyi, expression of GSTT in silk glands of the fifth instar larvae was analyzed.

为明确柞蚕谷胱甘肽硫转移酶－theta在柞蚕丝素蛋白准备和合成过程中所起的作用，采用生物信息学的方法克隆了柞蚕GSTT基因，并分析其在5龄幼虫丝腺中的表达规律。

In search of environmentally benign insecticides with high activity, low toxicity and low residue, a novel series of anthranilic acid esters containing N-pyridylpyrazole were designed and synthesized. All of the compounds were characterized and confirmed by IR, 1H NMR, MS and elemental analysis.

设计，合成了8个新的含N-吡啶基吡唑杂环的邻氨基苯甲酸酯类化合物，结构经FTIR， MS， 1H NMR 和元素分析确证，并且采用X-射线衍射分析方法确证了具有较好生物活性的化合物14d的结构。

In this trial, which began in March 2006, researchers injected a dystrophin gene compound called Biostrophin, which was developed with MDA support at Asklepios Biopharmaceutical in Chapel Hill, N.C., into the biceps muscles of boys with DMD.Biostrophin is a combination of miniaturized dystrophin genes and adeno-associated viral shells that home to muscle fibers.

这次试验始于2006年3月，研究人员将名为biostrophin的抗肌营养不良蛋白基因化合物（在俄亥俄州哥伦比亚儿童医院同肌肉营养失调协会的支持下，由Asklepios生物医药公司制造）注入了到DMD男孩们的二头肌中。biostrophin是由微型肌营养不良蛋白基因和来自肌纤维的腺相关病毒壳合成的。

It's formulated with wild aweto,ginseng,antler, dragon's bone and other precious Chinese medicine by means of uptodate bioextraction and hyperconcentration. This is a 100% pure herbal medicine that helps realize long-lasting erection and enlargement of penis, unaffected by high blood pressure and heart diseases. Without side effects and dependency, this is an ideal choice of the day in China for invigorating the yang and enhancing the body.

本品是将野生虫草通过高新生物提取合成技术，利用超浓缩萃取工艺精心制作而成，配以人参，鹿茸，龙骨等名贵中草药，100%纯中药制剂，它具备激发阴茎快速勃起，延时，增粗增大等效果，不受高血压，心脏病的影响，无副作用及依赖性，是国内新一代壮阳强身佳品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。