查询词典 Laurencia

A new compound has been isolated from the Laurencia majuscule Lucas, it"s structure was determined by IR, MS,"HNMR, 13CNMR, clemently analysis.The compound is P -d-Arabinoside, 1-O-hexadecyl.

从采自西沙群岛的略大凹顶藻乙醇提取液的乙酸乙酯部分分离出了一个化合物，经IR、MS、~1HNMR、~(13)CNMR、元素分析等方法鉴定为一个新化合物：β-十六烷基-D-阿拉伯糖甙。

Twenty-four compounds with a new constitute have been isolated and identified from Acropora pulchra collected from the North Sea , Porites Compressa Dana and Laurencia majuscule Lucas collected from Xisha Islands.

本课题对采自中国北海的佳丽鹿角珊瑚和南海西沙群岛的扁缩滨珊瑚、略大凹顶藻的化学成分进行分离，从中分离鉴定了24个化合物，其中一个为新化合物，7个为纯化合物，经GC-MS鉴定了14个化合物。

Objective To search for sesquiterpene components with structural diversity from Laurencia tristicha to supply for pharmacological activity screen.

目的 从三列凹顶藻Laurencia tristicha中寻找具有多样性结构的倍半萜化学成分，供药理活性筛选。

Tissue composition analysis, nutrient enrichment and starvation treatments, bioassay and in situ extracellular alkaline phosphatase activity determination showed that growth of Sargassum duplicatum, Codium edule and Ulva latuca were limited by phosphorus during the early growth period while nitrogen during the fast growth period. Growth of Enteromorpha linza, Gracilaria coronopifolia and Laurencia papillosa were limited by phosphorus.

南湾及眺石海水优养化可能是造成大型海藻单位面积生物量明显增加的原因，藻体营养分析、室内营养盐添加与不添加处理、bioassay及insitu 细胞外磷酸分解酵素活性证明重缘叶马尾藻、食用松藻及大石莼的营养盐限制因子在初期是磷而快速生长期是氮而浒苔、伞房龙须菜及乳头凹顶藻是磷。

Objective To evaluate the antioxidation of Laurencia extract on rats after alcohol exposure.

目的 观察凹顶藻萜类化合物对酒精暴露大鼠的抗氧化作用，并探讨可能的机制。

So the study on chemical constituents towards Laurencia can enrich the knowledge of this genus and provide a new way for seeking the lead compounds of new medicine.

因此研究凹顶藻Laurencia的化学成分，可以丰富人们对该种属的认识，同时对寻找新的药物先导化合物提供重要的依据。

There were piles of research papers on natural products of red alga Laurencia, in this paper, we first reported the secondary metabolites from Laurencia tristicha.

凹顶藻天然活性产物是藻类化学研究的一个热点，本文首次对三列凹项藻(L.tristicha)的次生代谢产物进行了分离研究。

In this dissertation, the chemical constituents of the red algae Laurencia cartilaginea and Laurencia majuscula collected from the South China Sea of the Xisha Islands were studied, and 12 compounds were isolated by combination of extraction and separation and identified by various kinds of spectrum.

本论文主要采用硅胶柱层析、RPC—18反相柱、Sephdex LH—20、薄层层析及重结晶等方法，对采自中国南海西沙群岛的软骨凹顶藻Laurencia cartilaginea和略大凹顶藻Laurencia majuscula的化学成分进行研究，共得到12种化合物，并运用各种波谱手段对得到的化合物进行了结构鉴定。

In Laurencia cartilaginea, nine compounds (compoundsl-9) have been isolated and identified from the extraction of EtOAc fraction.

从软骨凹顶藻Laurencia cartilaginea乙醇浸提液的乙酸乙酯部分分离得到8个单体化合物和一组甾醇混合物(化合物1—9)，并通过IR、~1H-NMR、~(13)C-NMR、EI-MS、GC-MS、FAB-MS、ESI等波谱技术进行鉴定。

During screening of seaweeds from different places in Europe for antimicrobial actiities against human and fish pathogenic bacteria, Laurencia chondrioides was identified as a promising species. By bioassay-guided isolation, followed by structure elucidation by mass spectrometry and 1H- and 13C-NMR spectrometry, two sesquiterpenoides of the chamigrene-type from the selected red seaweed Laurencia chondrioides were identified.

在对欧洲不同地方的海藻进行抗人类和鱼类病原菌的活性筛选中，凹顶藻Laurencia chondrioides被认为是最具前景的种类，通过生化分离和质谱和H、C核磁共振谱的分析，从所选的红藻Laurencia chondrioides中鉴定出了2种C型倍半萜。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。