triterpenoids相关论文
Accumulation of biomass and four triterpenoids in two-stage cultured Poria cocos mycelia and diureti
Poria cocos (Schw.) Wolf,an important medicinal and food fungus,is well known in East Asia.Due to growing market demand,......
Molecular cloning and promoter analysis of squalene synthase and squalene epoxidase genes from Betul
Betula platyphylla is a rich repository of pharmacologically active secondary metabolites known as birch triterpenoids(T......
RNA-Seq of Gynostemma Pentaphyllum to Identify Genes and Enzymes Involved in Triterpenoid Biosynthes
G.pentaphyllum(Gynostemma Pentaphyllum)a creeping herbaceous perennial with much important pharmacological functions,is ......
Chemical investigation of the aerial parts of mangrove plant Sonneratia Paracaseolaris yielded five new triterpenoids pa......
In the phytochemical investigation of the fruits of Buddleja lindleyana,two new 11-methoxyl group substituted triterpene......
...
<span style=\"font-family:Verdana;\">Chemical investigation of the MeOH extract from the leaves of </span><i><span s......
The multitarget anti-tumor effects of Ganoderma lucidum(G.lucidum) is reviewed by data from our laboratory and refer......
Cytotoxic activity of the chemical constituents of Clerodendrum indicum and Clerodendrum villosum ro
Objective:The roots of two Thai medicinal plants,Clerodendr indicum and Clerodendrum villosum are found in traditional m......
自赤芝[Ganodermalucidum(Fr.)Karst]的二氯甲烷溶解部分分离得到一个新的三萜内酯化合物,命名为灵芝内酯(ganolactone)。根据光谱(UV,IR,1HNMR,13CNMR,MS和2DNMR)解析,确定其结构为1式。同时还从赤芝子实体中......
Triterpenoids have been described in Andrographis paniculata.Oleanolic acid exhibits high biological activity and is wid......
从大叶钩藤茎中分离得到19个三萜类成分,包括1 1个乌苏烷型三萜和8个齐墩果烷型三萜,其化学结构通过波谱学方法鉴定.19个化合物中1......
目的 对阔叶五层龙所含化学成分进行研究.方法 应用液-液萃取及多种柱层析方法进行化学成分的分离、纯化,并利用多种光谱技术进行......
Three new lanostane triterpenoids, fuscoporianol A (1), B (2), and C (3) were isolated from the petroleum ether extracts......
,Triterpenoid inducers of Nrf2 signaling as potential therapeutic agents in sickle cell disease: a r
...
,Cloning and characterization of squalene synthase and cycloartenol synthase from Siraitia grosvenor
Mogrosides and steroid saponins are tetracyclic triterpenoids found in Siraitia grosvenorii.Squalene synthase (SQS) and ......
,Characterization of Panax ginseng UDP-Glycosyltransferases Catalyzing Protopanaxatriol and Biosynth
...
Analysis of three types of triterpenoids in tetraploid white birches (Betula platyphylla Suk.) and s
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Simultaneous Determination of Two Major Triterpenoid Saponins: Celosins Ⅰ and Ⅱ in Celosiae Semen by
Objective To establish an analytical method for the simultaneous determination of celosin Ⅰ and celosin Ⅱ, two major t......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
目的建立同时测定四季青中3种三萜及其皂苷--长梗冬青苷、地榆皂苷I和救必应酸含量的HPLC分析方法.方法 C18柱;流动相:甲醇-水(59......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
目的:对雷公藤多苷的三萜化合物进行分离鉴定和完善雷公藤多苷产品的质量控制标准。方法:硅胶柱层析分离,理化常数和光谱数据确定三萜......
从雷公藤 ( Tripterygium wilfordii Hook.f.)根皮的丙酮提取物中分得 11个化合物 ,经理化数据及光谱分析鉴定了它们的结构为 :雷......
Two new triterpenoids named intercedenol A and B were isolated from the acid hydrolysate of the crude glycoside fraction......
对中华猕猴桃(Actinidia chinensis Planch.)根乙酸乙酯部分的化学成分进行研究,依次用石油醚、乙酸乙酯、正丁醇萃取中华猕猴桃根的......
目的 研究地钱(Marchantia polymorpha L.)的化学成分。方法通过多种色谱手段,对地钱的脂溶性成分进行分离。根据化合物的波谱数据进行......
采用适时荧光定量聚合酶链式反应技术,以培育2个月的普通烟草为材料,对从药用植物苦楝中分离得到的8种三萜类成分与从臭椿中分离得到......
目的 对椒目(Zanthoxylum bungeanum Maxim.)质量分数为95%的乙醇提取物的化学成分进行研究。方法 椒目用质量分数为95%的乙醇溶液回流......
TherootofSileneszechuensisisaChinesetTaditionalmedicinewhichcanbeusedtotreatgaStralgia’.Fromethanolicextractoftheplanta......
<正> 黑蔓(Tripterygium regelii Sprague et Take)系卫矛科雷公藤属植物,又名东北雷公藤。前报报道了黑蔓中具有抗肿瘤活性的新三......
自大戟科(Euphorbiaceae)植物大狼毒(Euphorbia nematocypha Hand—Mazz)根的乙醇提取物的苯溶解部分,经20%AgNO_3硅胶层析,分离得......
以毛冬青叶为原料,齐墩果酸为标准品,用香草醛比色法测毛冬青叶三萜酸的含量,通过单因素试验和正交试验相结合的方法考察了提取次......
从水东哥科植物锥序蜜心果(Saurauia napaulensis)中分离得到8个三萜类化合物,其中一个为新的三萜,鉴定其结构为2α,3α,24.三羟基-12-熊......
为提高粗毛纤孔菌三萜物质的得率,本研究首先通过单因素实验,确定影响提取的四个主要因子:溶剂体积分数、提取温度、料液比、提取时间......
本文以三萜类化合物的洗脱效果为考察指标,研究适合芡实壳三萜类化合物分离纯化的大孔树脂吸附性能及洗脱参数。研究结果显示DM301......
基于亲水性醇-无机盐双水相体系,建立高效分离纯化灵芝三萜的新方法。考察亲水性有机试剂种类、无机盐(种类、浓度、p H)、样品加入......
目的:研究核桃楸(Juglans mandshurica Maxim)的未成熟的外果皮的化学成分。方法:采用常规硅胶柱、半制备高效液相色谱等手段进行......
为研究油桦中三萜类化合物的提取工艺,以油桦树皮为原料,采用超声法提取三萜类化合物,建立油桦中三萜类化合物的高效液相色谱测定......
目的优选茯苓皮总三萜的最佳提取工艺。方法采用紫外分光光度法测定总三萜物质的含量,以茯苓皮总三萜的提取率为指标,正交优选最佳提......
卫矛科美登木属(Maytenus)植物因发现具有较强抗肿瘤活性而备受关注,其中木栓烷型三萜是主要活性成分之一,并具有较特征的A环或A/B环......
夏枯草(Prunella vulgaris.L.)为唇形科夏枯草属植物,作为常用中药,具有降压、降糖、消炎抗菌、免疫抑制活性、抑制病毒及肿瘤生长等多......
从夏枯草中用色谱法分离得到 1个新的苯丙素类化合物 (1 )和 5个已知的三萜类化合物 (2~ 6) ,经波谱法和化学鉴定为 3 ,4,α 三羟基......
三萜类化合物在预防糖尿病和降血糖活性方面的研究取得了较大进展。研究发现,三萜类化合物能够通过多种途径降低血糖,包括促进胰岛......
...
辽东木〔Araliaelata(Miq.)Seem〕系五加科木属植物,主要分布于我国的东北,主要化学成分为以齐墩果酸为苷元的三萜皂苷,从其降糖活性部位正丁醇层提取物......
为测定夹竹桃中总三萜的质量分数,以齐墩果酸为对照品,5%的香草醛一冰醋酸溶液和高氯酸为显色剂,采用薄层色谱分离一分光光度法在550am......
研究茯苓中能增强机体自身产生集落刺激因子的四环三萜酸类化合物。方法:采用真空柱层析方法,薄层制备等多种色谱方法进行分离,运用红......