英语翻译

9) 设计题目：点击化学法合成芳香二脒类化合物

摘 要：传统的合成脒的反应产量很低，从而限制了对其进行一步的研究与开发。因此，选用以炔基与叠氮基加成链接的点击化学法高产量合成脒类化合物有着非常重要的意义。本实验研究以对氰基苯酚、氢氧化钠、3-溴基丙炔、叠氮化钠、二溴代烷、氨化物等物质为底物，经过搅拌、回流、过滤重结晶等反应过程，利用点击化学法最终得到脒类化合物。其结构均经红外分析仪分析后，均有脒的结构。 9) Design topics:Click on the chemical synthesis of two aromatic amidine compounds

The reaction yield is very low in the traditional synthesis of amidines， Thus it limits the research and development of it.So，The selection of alkyne azide cycloaddition and click chemistry method high yield synthesis of amidines link is very important.Haloalkane using 4-cyanol phenol, sodium hydroxide, 3- propargyl bromine, sodium azide, by this experimental study,Ammoniated material as substrate,After mixing, reflux, filtration and other reaction processes,Finally get the amidine compound using click chemistry method.The structure was analyzed by infrared analyzer,Structure of amidine.

10)乳酸菌的鉴定与乳酸菌的抑菌性

乳酸菌是一类以糖为原料，主要产物为乳酸的细菌的总称，其重要性已经引起国内外的广泛关注。乳酸菌产生的具有抑菌作用的物质——细菌素，具有无毒、无副作用、无残留、无抗药性，同时也不污染环境等优点，已成为生物食品防腐研究的重点，并被认为是最有效的抗生素替代物。乳酸菌在医疗、生物防治、食品、饲料和发酵等领域也具有广泛的应用前景。

本文主要以市售进口奶酪为研究对象，采用BCG培养基分离出单个的细菌菌落，通过观察菌落形态、菌体形态观察筛选出5株乳酸菌，通过抑菌实验，在5株乳酸菌中筛选得到1株具有高抑致病菌活性的乳酸菌菌株GL5，通过菌株形态学特征的观察与生理生化特征的鉴定，参考《伯杰细菌鉴定手册》，该菌株与干酪乳杆菌最相似。

10) Identification of lactic acid bacteria and the antimicrobial activity of lactic acid bacteria

Lactic acid bacteria is a kind of sugar as raw material,The main products of lactic acid bacteria in general,Its importance has caused wide attention at home and abroad.Has the antibacterial effect of the material -- Bacteriocin Produced by lactic acid bacteria,With non-toxic, no side effects, no residue, no drug resistance,At the same time has the advantages of no environmental pollution.Has become the focus of the study of biological food preservation,

本文来源：https://www.bwwdw.com/article/1i1o.html