查询词典 acetic acid bacteria

The results show different impacts of elevated pCO2 on the contents of salicylic acid, p-Hydroxybenzoic acid, cinamic acid, ferulic acid and vanillic acid, as well as phenylalnine ammonialyase activity in winter wheat leaves under low N and normal N levels.

结果表明，CO2浓度升高对小麦叶片水杨酸、对羟基苯甲酸、肉桂酸、阿魏酸和香草酸含量的影响随供氮水平的不同而有所差异。

The results show different impacts of elevated p CO2 on the contents of salicylic acid, p-Hydroxybenzoic acid, cinamic acid, ferulic acid and vanillic acid, as well as phenylalnine ammonialyase activity in winter wheat leaves under low N and normal N levels.

结果表明， CO2浓度升高对小麦叶片水杨酸、对羟基苯甲酸、肉桂酸、阿魏酸和香草酸含量的影响随供氮水平的不同而有所差异。

The invention uses the fermentation liquor of one Escherichia coli generating polysialic acid as material, filters and removes thallus, adds some solvents as sodium chloride and alcohol into supernatant to deposit polysialic acid, dissolves the polysialic acid deposits via deionized water, filters to remove modified protein, uses alkali prolease to treat filtrate, complexes deposits via cetyl pyridinium chloride or cetyltrimethylammonium bromide, and dissociates, uses over alcohol to deposit polysialic acid, dissolves the deposits via ultra-pure water, grades and purifies via chromatography column, collects and dialyzes eluent, cools and dries to obtain polysialic acid.

本发明以一株产聚唾液酸大肠杆菌的发酵液为原料，经过过滤去除菌体，上清液加入适量氯化钠和乙醇等溶剂沉淀出聚唾液酸，聚唾液酸沉淀用去离子水溶解，再用过滤去除变性蛋白质，滤液经过碱性蛋白酶处理、氯代十六烷基吡啶或十六烷基三甲基溴化铵络合沉淀并解离后，再用过量乙醇沉淀出聚唾液酸，聚唾液酸沉淀用超纯水溶解，用层析柱进行分级纯化，收集洗脱液经过透析，冷冻干燥得聚唾液酸产品。

Fig.7 Effect of acid on the emulsifying property of PKGM and casein in oil and water emulsion (O/W=1︰9) B 0.02% PKGM,0% citric acid; C 0.02% PKGM,with 1% citric acid contained in the water phase pH 2.3;D 0.1% casein,0% citric acid; E 0.1% casein,with 1% citric acid in the water phase pH 2.3

综上所述，适宜取代度的PKGM具有较强的乳化能力和较好的乳化稳定性能，同时表现出良好的抗盐和抗酸性能，其乳化用量少约为0.02%左右，可望成为食品等工业中的一种高效能的大分子乳化剂。

Effect of acid soil on dry matter accumulation and Al and nutrient contents of barleys differing in acid soil toleranceThe experiment was conducted by using 10 barley genotypes with different acid soil tolerance at seedling stages, each 5 genotypes for acid tolerance and sensitivity, to determine the difference in biomass accumulation, Al and nutrient content in the roots and shoots among genotypes under the condition of acid soil stress.

低pH和两种铝处理下植株各器官ca、Mg含量，茎杆和叶片P、K含量，叶片Fe、MO、Zn含量以及茎杆Zn、B含量和根系及叶片Mn含量均降低，铝福复合处理时降幅更大。100林MAI处理，大麦幼苗整个试验期间根系分泌的苹果酸、柠檬酸和唬拍酸含量与对照相比均增加，且耐铝基因型增幅大于铝敏感基因型，表明铝诱导这些有机酸分泌量增加可能与品种耐铝性有关。

Nitric acid media most common metal corrosion in nitric acid was rapidly destroyed, stainless steel is the most Gate Valves widely used nitric acid-resistant materials, all concentrations of nitric acid at room temperature have good corrosion resistance, it is worth mentioning that the stainless steel containing molybdenum ( such as 316,316 L) of nitric acid corrosion resistance is not only no better than ordinary stainless steel (eg 304,321), and sometimes even better.

硝酸介质一般金属大多在硝酸中被迅速腐蚀破坏，水力控制阀不锈钢是应用最广的耐硝酸材料，对常温下一切浓度的硝酸都有良好的耐蚀性，值得一提的是含钼的不锈钢（如316、316L）对硝酸的耐蚀性不仅不优于普通不锈钢（如304、321），有时甚至不如。

Treatments contained skim milk and 50 g fat from high–oleic acid safflower and canola oils (monounsaturated fatty acid; MUFA), MUFA + 3.5 g α-linolenic acid (ALA; MUFA + ALA) from high-ALA canola oil, or MUFA + 4.0 g both eicosapentaenoic acid and docosahexaenoic acid (DHA; MUFA + EPA/DHA) from sardine oil.

处理因素为：脱脂奶及50g脂肪（来源于含高油酸的草红花和芸苔油）（单不饱和脂肪酸，MUFA组）， MUFA＋3.5g γ－亚麻酸（来源于高γ－亚麻酸含量的芸苔油），MUFA＋4.0g二十碳五烯酸和二十二碳六烯酸（MUFA+EPA/DHA组）。

The main component dehydroabietic acid and little component abietic acid, neoabietic acid, levopimaric acid and pulustic acid of a few types disproportionated rosin were determinated quantitatively by selecting the proper order of derivative, differential wavelength difference, scanning rate and quantitative method.

通过选择合适的求导阶数、微分波长差、扫描速度和定量方法，对不同批号的歧化松香中的主成分脱氢枞酸和微量组分枞酸、新枞酸、左旋海松酸及长叶松酸进行了测定(其中左旋海松酸和长叶松酸测定的是合量)，实验结果令人满意。

This paper summarized preparation technology and the production application at home and abroad for acetic anhydride ,and suggestions of production and development for acetic anhydride in our country was put forward.

综述了醋酐的生产技术及国内外的生产应用状况，并对国内外醋酐的生产发展提出建议。

Acetic anhydride was a very important chemical raw material, which was widely used in many fields of the national economy. There were more preparation methods for acetic anhydride, however, using coal into an important chemical materials was the states key research project.

醋酸酐是非常重要的化工原料，广泛的运用于国民经济多个领域，制备方法比较多，但利用煤炭转化为重要的化工原料是国家重点研究项目。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48