查询词典 lactic

BrightChina is devoted to development of lactic acid and poly-lactic acid industry where the renewable plant resources can be used as raw material, and the products include lactic acid and its derived lactates, lactic esters,poly-lactic acid, and other environment- friendly outputs.

公司致力于发展乳酸及聚乳酸产业。这已产业以可再生性植物资源为原料，产品包括乳酸及其衍生的乳酸盐类、乳酸酯类和聚乳酸等环境友好产品。

4Mm harvested in preculture, is the best. In this form, Rhizopus oryzae R1021 produced most L-lactic acid (76. 62g/L), the pellet size in production medium in flask and fermentor are 1. 9mm and 2. 6mm, respectively, and its L-lactic acid productivity reached or exceeded that of the immobilized cell with polyurethane foam. The produced L-lactic acid and the yield of L-lactic acid based on the total glucose and the productivity are above 74g/L and 74% and 2. 69g/L h, respectively, in 7 batches repetitive fermentation in fermentor, and the size of pellets remain 2. 6mm～3. 4mm.

摇瓶种子培养获得的菌球直径为1.4mm时，这种大小的菌球产酸最高，为76.62g/L；研究表明以直径1.4mm的菌球为种子，在摇瓶发酵和发酵罐发酵中菌球大小分别为1.9mm和2.6mm；这种菌球的产酸水平最高，可以达到甚至超过聚氨酯泡沫载体固定化细胞发酵乳酸的水平；在反复7批次发酵罐发酵过程中，菌球的大小始终保持在2.6mm～3.4mm之间，L-乳酸产量、得率和生产能力分别保持在74g/L、74％和2.69g/L h以上。

When the concentration of zinc nitrite is lower than 0.1 M,(002) is the prior face for zinc oxide. As the concentration raise, the other kinds of crystal face would appear. Among those data,(002) grows the best when the concentration of zinc nitrite is 0.06 M. We add lactic acid and citric acid respectively; there is an carboxyl group on the lactic acid and three carboxyl groups on the citric acid. The monodentate of lactic acid helps the growth of zinc oxide, compared to the tridentate of citric acid which can only produce zinc oxide film under very low concentration, but the growth of (002) face is not that stable as adding the lactic acid and zinc will electrodeposit to substrate.

实验中，当硝酸锌浓度低於0.1 M 时，氧化锌以(002)面为优选位相，当浓度提高，其他晶面将会出现，当硝酸锌为0.06 M，(002)晶面成长最佳，分别加入乳酸和柠檬酸，乳酸结构上有一羧基团而柠檬酸有三个羧基团，单芽基的乳酸有助於氧化锌成长，对照於三芽基的柠檬酸，则必须在极低的浓度下才能制备氧化锌薄膜，但(002)面成长却没有添加乳酸来的稳定而金属锌也会电沉积到基板上。

In the traditional lactic acid production methods, DL-lactic acid can be synthesized by chemosynthesis method, its cost is too high and its raw materials are venomousness; Optical purity lactate can be produced by Enzyme catalysis. Due to it"s more complicated technology and it"s high demanding for working condition, microbial fermentation has become the important method to produce lactic acid.

传统的乳酸生产方法中，化学合成法所用原料有剧毒，生产成本高：酶法生产乳酸工艺比较复杂，对生产条件要求较高，因此微生物发酵法生产乳酸成为乳酸生产的主要方法。

In red wine fermentation process, lactic acid fermentation is usually carried out as vice fermentation is the use of lactic acid in sour wine malic acid into a more supple and stable lactic acid, and then into the aging stage.

在红葡萄酒的酿造过程中，通常会进行称为乳酸发酵的副发酵，是利用乳酸菌把酒中酸涩的苹果酸转变成较柔顺、稳定的乳酸，然后就进入陈酿阶段。

The concrete steps are: the lactic acid and small-molecule dicarboxylic acid react under the condition with the presence of the catalyst to directly polymerize the carboxyl-terminated lactic acid prepolymer; then the aliphatic polycarbonate diol and the catalyst are added; with the presence of the N2, the reaction is kept for 1 to 10 hours at the temperature of 150 to 200 Celsius system to get the poly lactic acid and polycarbonate copolymer of the low molecular weight; then the reaction is done in the twin-screw extruder at the temperature of 150 to 190 Celsius system to screw out the extension chain; finally the polylactic copolymer of the high molecular weight, toughness and heat resistance is made.

具体步骤是：乳酸和小分子二元酸在催化剂条件下反应直接缩聚合成羧基封端的乳酸预聚物，然后加入脂肪族的聚碳酸酯二元醇和催化剂，在N 2 气氛下，抽真空，在150～200℃温度下，反应1～10小时，得到低分子量聚乳酸/聚碳酸酯共聚物，然后在双螺杆挤出机中在140～190℃下，进行反应挤出扩链，最终得到高分子量的、韧性与耐热性较好的聚乳酸共聚物。

The result showed that 70% initial moist was suitable for ensilage, and the water-soluble carbohydrate content was more than 40mg/g-DM, or would result in fail in ensilage because low sugar content could not support lactic acid bacteria to produce lactic acid for drop in pH rapidly.

在以上研究过程中，对影响青贮的一些因素如初始含水量和初始还原糖含量进行了探讨，发现青贮时初始含水量70%较佳，初始还原糖含量不能低于40mg/g-DM，否则无法快速启动乳酸菌的生长繁殖而导致青贮失败。

Futher results showed that: the optimum growth temperature for the 4 lactic acid bacteria was 30℃; and the pH 3.5~4.0; all 4 lactic acid bacteria could grow at the medium with 10% NaCl, and the optimum range was 2%~6% They were aerotolerant anaerobe; They showed certain inhibition on E coli..

进一步测试表明：4株乳酸菌在30℃培养时，生长最好；在pH3.5~4.0时生长良好；4株乳酸菌在10% NaCl的环境中均能生长，其中以2%~6%的NaCl浓度内生长最适宜；属兼性厌氧菌；对大肠杆菌产生一定的抑制作用。

In the survival group, patients' blood dynamics were stable gradually, DO2 and VO2 increased obviously, the blood lactic acid level was low, after complex therapy the patients were survival, however, in the death group the data demonstrated that patients' blood dynamics were unstable, the DO2 and VO2 was difficult to increase, and the blood lactic acid kept at high level, it showed that the tissues were seriously inthe condition of ischemia and anoxemia, the cell function failure was irreversible, although many kinds of complex therapy were carried on, the patient still died finally.

生存组中，患者血液动力学逐渐平稳，DO2和VO2均明显升高，血乳酸水平较低，经综合治疗后患者得于存活，而死亡组数据显示，患者血液动力学不稳定，DO2和VO2的提高非常困难，且血乳酸水平持续较高，提示组织缺血缺氧严重，细胞功能衰竭不可逆，虽采取多种措施进行综合治疗，但患者最终仍然死亡。

After 20 days, at the end of fermentation, the cassava residue inoculated has better sensory quality, but the treatments of adding low levels of saccharose have low lactic acid accumulation amounts and high butanoic acid accumulation amounts compared with the treatments of adding high levels of saccharose, the treatment with inoculation and 4% saccharose addition has the highest lactic acid accumulation amount, which is 18.7 g/kg, and the treatment with inoculation and 8% saccharose addition has the lowest butanoic acid accumulation amount, which is 0.141g/kg.

结果显示：在发酵开始时接种处理的乳酸菌数为5×108 cfu/g，而对照处理没有检测到；发酵结束后，接种的3个糖水平处理的外观发酵品质比未接种处理好，但糖浓度低时丁酸积累较多，乳酸积累少，接种并添加4%蔗糖的处理乳酸积累量最高，发酵物中乳酸积累达18.7 g/kg，接种并添加8%蔗糖的处理丁酸积累最少，仅为0.141 g/kg。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。