查询词典 isolated substance

All compounds except 1 were isolated from this plant for the first time, and compound 5 was obtained from Leguminosae for the first time.

除化合物1以外，其余均是首次从铁甲草中分离得到，其中化合物5为首次在该科植物中发现。

From Leontopodium nanum (collected from Zhang County, Gansu Province), 12 compounds were isolated, of which 9 compounds have been identified. Among them, a derivative of coumarin is new.

从采自甘肃漳县的矮火绒草全草的甲醇提取物中，采用同样方法共分离纯化得到12个化合物，鉴定了9个化合物的结构，其中有1个新化合物，命名为6，7-并二氧六环[2-（1-甲酯基-1-甲基）-甲烯基]-香豆素（1）。

With two methods, plate cultivation and the novel semi-solid in situ cultivation method, strains belong to Family Leptothrix were isolated. XRF showed that the amorphous iron and manganese were two major metal elements of the precipitation formed by one strain of Leptothrix spp..

研究发现，铁细菌2号培养基为合适的分离培养基；采用平板涂布法分离出的2株氧化铁和锰的细菌，经系统发育地位的分析确定为纤发菌属；对运动纤发菌的产物分析确定无定形铁和锰为其主要金属元素；形态观察确定霍氏纤发菌呈树枝状鞘结构，而运动纤发菌呈蛛网状鞘结构。

Leucamide A, a bioactive cyclic heptapeptide containing a unique mixed 4,2-bisheterocycle tandem pair consisting of a methyloxazole and thiazole subunit was first isolated from Australian marine sponge Leucetta microraphis.

Leucamide A是从澳大利亚海绵Leucetta microraphis中分离而得到的一种天然环肽化合物，由氨基酸及氨基酸衍生物组成：L—亮氨酸，噁唑，L-丙氨酸，甲基噁唑，噻唑，L—缬氨酸和L-脯氨酸。

This study has discussed that Lactic acid bacteria are isolated from 752 samples of milk and other dairy products, collected from 500 household in pastoral areas in Inner mongolia, and its biological properties are analyzed and studied.765 strains of lactic acid bacteria, including 28 species of Lactobacellus,2 species strains of Bifidobacterium, 9 species strains of Enterococcus, 3 species strains of Lactococcus, 1 specie of Streptococcus, 6 species of Leuconostoc,1 specie of Pediococcus , are identified.

从代表内蒙古牧区不同地域特点和独特生态环境的9个盟市18个牧业旗500多户牧民家庭，以目的采样和层次分类随机采样相结合的方法，共采集鲜乳及乳制品样品752份，分离到947株乳酸菌，并用形态、染色、培养特性及生化反应等实验对其进行了鉴定，有765株实验菌株分别归于7个属50个种和亚种，其中归于乳杆菌属的有28个种和亚种；归于双歧杆菌属的有2个种；归于肠球菌属的有9个种；归于链球菌属的有1个种；归于乳球菌属的有3个种和亚种；归于明串珠菌属的有6个种和亚种；归于片球菌属的有1个种。

Ninety LAB isolated from fermented cabbage were identified as species of Lactobacillus and Leuconostoc, whereas 115 clones of the 16S rRNA gene sequence from fermented cabbage DNA were identified as Lactobacillus, Weissella, Pediococcus and Leuconostoc.

从培养平板分离得到的90株乳酸菌鉴定为Lactobacillus属和Leuconostoc属。通过对115个16S rRNA基因序列对比发现非培养样品的乳酸菌为Lactobacillu属，Pediococcus属 Leuconostoc属，Weissella属。

In the paper four strains Leu.1, Leu.2, Lact.l and Lact.2 were isolated from many sorts of pickles for their excellent characteristics in acid production and fermentation flavor. With API 50 CH system, Leu.l and Leu.2 were identified as Leuconostoc mesenteroides subsp.

本论文从多种泡菜中筛选出四株产酸较快、发酵风味好的乳酸菌Leu.1、Leu.2、Lact.1和Lact.2，经API 50 CH标准系统鉴定，Leu.1和Leu.2为肠膜明串珠菌肠膜亚种Leuconostoc mesenteroides subsp。

Two strains that are resistant to nisin with high levels (up to 2000IU/ml in MRS broth ) were screened from 362 strains. One strain Ls-5105 isolated from pickles was systematically identified as leuconostoc mesenteroides subsp. mesenteroides on the basis of morphology, physiological and biochemical features with modern analytical methods and classical methods.

经过分离筛选，从362株菌中得到两株能够耐受2000IU／ml乳链菌肽的高抗菌株，利用现代分析技术与经典分类法对其中一株菌Ls-5105进行系统细菌学鉴定，鉴定该菌株为明串珠菌属肠膜明串珠菌肠膜亚种Leuconostoc mesenteroides subsp。

Avian leukosis virus subgroup J was first isolated in 1989 and identified as a new subgroup of avian leukosis virus.

J亚群禽白血病病毒是1989年被分离、鉴定出的一个新的禽白血病病毒亚群，与其它ALV亚群比较，该亚群病毒的一个显著特点是其env基因非常独特。

The present study was undertaken to observe experimental myeloid leukosis induced with IMC_(10200) strain ALV-J which was isolated originally from a normal broiler breeder.

对分离自肉种鸡群亚临床感染的J亚群禽白血病病毒IMC10 2 0 0 株进行了实验感染诱发禽骨髓性白血病的病理学研究。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。