共查询到19条相似文献,搜索用时 78 毫秒
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目的 通过对檀香及其伪品非洲檀香、澳洲檀香进行鉴别研究,为檀香的真伪鉴别提供依据。方法 采用性状、显微、薄层色谱方法进行鉴别,水蒸气蒸馏法测定檀香及其伪品的挥发油含量,并用气相色谱-质谱联用法(GC-MS)分析挥发油成分,对比三者挥发油成分差异。结果 性状上,檀香、非洲檀香和澳洲檀香均具檀香气,但正品檀香油性足,气香浓郁,非洲檀香气稍浓而略带樟香气,澳洲檀香气芳香清甜;檀香呈灰黄色至黄褐色,非洲檀香整体红棕色,澳洲檀香呈浅黄色至浅黄棕色,久置表面呈棕红色。显微横切面,檀香木射线宽多1~2列细胞,偶见3列细胞,非洲檀香木射线宽1~3列细胞,澳洲檀香木射线宽1~2列细胞,多单列;弦切面,檀香木射线高多5~15个细胞,非洲檀香木射线高多4~10个细胞,澳洲檀香木射线高多4~16个细胞;径切面,檀香草酸钙方晶少,非洲檀香草酸钙方晶多,澳洲檀香草酸钙方晶多且大。薄层鉴别以檀香油作对照品可准确区别檀香正伪品。非洲檀香和澳洲檀香挥发油含量均低于檀香。檀香主要成分为α-檀香醇和β-檀香醇,而非洲檀香中二者含量较低,澳洲檀香中α-檀香醇含量极低,且不含β-檀香醇。结论 檀香及其伪品非洲檀香、澳洲檀香的性... 相似文献
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檀香及两种伪品檀香的鉴别湖南省长沙市药品检验所(410004)舒毕琼主题词檀香/解剖学和组织学檀香/分析中药伪品檀香是我国一种较少用的中药,始载于《名医别录》,具有理气和胃、温中止痛的功效,来源于檀香科植物檀香SantalumalbumL.树干的心材... 相似文献
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贺红 《现代中药研究与实践》2002,16(5):17-19
目的 探讨檀香胚性细胞发生体胚的技术。方法 以檀香实生苗的下胚轴为材料 ,MT为基本培养基 ,附加不同种类的植物激素。结果 基本培养基以 MT或 MS为好 ;IAA与 BA结合有利于胚性愈伤组织的形成 ,诱导率可达 36 .7% ;体胚发生 ,以 MT+IAA(NAA) 0 .2 mg/ L+BA1mg/ L 培养基较好 ,能诱导体胚发育 ,长出正常茎叶 ;BA浓度为 0 .5~ 1.0 mg/ L 时 ,既有利于体胚发生 ,又能保证一定的增殖速度。结论 成功地诱导出檀香胚性愈伤组织 ,通过体细胞胚胎发生长出正常茎叶 ,为利用生物技术的手段进行檀香人工种子的研究奠定基础 相似文献
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目的建立同时测定檀香叶中牡荆苷与异牡荆苷含量测定方法,为其资源利用等提供依据。方法采用Agilent TC-C18色谱柱(4.6 mm×250 mm,5μm),流动相为甲醇-0.5%冰醋酸溶液(40∶60),检测波长为338nm,柱温为30℃,流速为1 mL·min-1。结果牡荆苷的线性范围为7.625~488.0μg·mL-1;高、中、低剂量回收率分别为96.38%、97.23%、97.96%,RSD为1.29%~1.83%。异牡荆苷的线性范围为8.047~515.0μg·mL-1,高、中、低剂量回收率分别为97.81%、96.13%、97.98%,RSD为1.31%~1.81%。三批样品中牡荆苷与异牡荆苷的含量为1.13%~1.25%和1.20%~1.46%。结论檀香叶中牡荆苷与异牡荆苷含量较高,所建立的含量测定方法简便、准确,可用于檀香叶的质量控制。 相似文献
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檀香 Santalum album Linn.是极为珍贵的树种,其干燥心材为我国传统中药材——檀香。檀香的用药历史悠久,具有很高的药用价值。目前已从檀香药材中分离到的化合物以倍半萜类为主。此外,还包括单萜类及木脂素类等多种化学成分。檀香药材具有广泛的药理活性,对胃肠道功能、抗癌、抗氧化及神经系统方面的作用尤为显著。本文通过调研国内外文献和相关古籍资料,对檀香的化学成分及药理作用,进行整理,综述檀香药材的研究进展,以期为檀香药材的进一步开发利用提供科学依据。 相似文献
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Six viscotoxins in pure form from Viscum album L. have been isolated and their toxicity compared by using a viscotoxin sensitive Yoshida cell line. Four of them are the known viscotoxins A2, A3, B and 1-PS, whereas the other two appear to be new. The six viscotoxins were cytotoxic but varied in potency. Cytotoxicity of the extracts from the three European subspecies of V. album depended on the qualitative and quantitative composition of these viscotoxins. A good correlation of the cytotoxicity calculated on the basis of the content of viscotoxins present in the extracts with that measured by the Yoshida cell assay was observed. The viscotoxin sensitive Yoshida cell line is a suitable system for detecting the viscotoxin dependent cytotoxicity of mistletoe extracts 相似文献
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Kim TH Ito H Hatano T Hasegawa T Akiba A Machiguchi T Yoshida T 《Journal of natural products》2005,68(12):1805-1808
Six new bisabolane-type (1-3) and santalane-type (4-6) sesquiterpenoids, together with (+)-alpha-nuciferol, (+)-citronellol, and geraniol, were isolated from the heartwood of Santalum album of Indian origin. Their structures, including two bisabolol diastereomers (1, 2), were established on the basis of spectroscopic data interpretation. 相似文献
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Various extracts from the leaves of mistletoe (Viscum album L. ssp. album) were investigated for their antiviral activity on human parainfluenza virus type 2 (HPIV-2) growth in Vero cells. Plant extracts were prepared using distilled water, 50% ethanol, petroleum ether, chloroform and acetone. The 50% effective dose (ED(50)) of aqueous extract for HPIV-2 replication was 0.53 +/- 0.12 micro g/mL, and the antiviral index (AI), which was based on the ratio of the 50% inhibitory concentration (CD(50)) for host cell viability to the ED(50) for parainfluenza virus replication, was 10.05. The aqueous extract was found to be the most selective inhibitor. Furthermore, the aqueous extract at a concentration of 1 micro g/mL was found to inhibit HPIV-2 replication and the virus production was suppressed to more than 99% without any toxic effect on host cells. The chloroform extract was also found to be moderately active. In an effort to further analyse the mechanism of antiviral activity, the effectiveness of the aqueous extract on different steps of virus replication was examined. The antiviral activity could neither be attributed to the direct inactivation of the HPIV-2 nor to the inhibition of adsorption to Vero cells. The active aqueous extract has shown a dose-dependent antiviral activity on virus replication. 相似文献
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