共查询到19条相似文献,搜索用时 171 毫秒
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目的:研究南药琼榄根、茎、叶、果壳不同部位所含的化学成分,并测定琼榄各部位中总黄酮的含量。方法:采用系统预试验法对琼榄各部位的水、95%乙醇、石油醚提取液进行化学成分研究;以芦丁为对照品,采用NaNO2-A(lNO3)3-NaOH比色法测定琼榄不同部位中总黄酮的含量。结果:琼榄根、茎、叶、果壳中均含有糖及多糖类、氨基酸、多肽及蛋白质、黄酮、甾体及三萜类、生物碱、香豆素及内酯、挥发油等成分;均可能含有有机酸。此外,其根、叶中含有酚类、蒽醌、强心苷,茎、果壳中可能含有酚类、蒽醌、强心苷;各部位均不含皂苷。琼榄根、茎、叶、果壳中总黄酮的质量分数分别为0.028%、0.017%、0.033%、0.012%,以叶中总黄酮质量分数最高。结论:本试验初步确定了琼榄各部位的化学成分类型并测定了总黄酮的含量,可为进一步研究琼榄提供依据。 相似文献
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小茴香挥发油化学成分的GC/MS研究 总被引:6,自引:0,他引:6
目的 用气相色谱-质谱对小茴香挥发油化学成分进行分析。方法 采用水蒸汽回流法提取挥发油,用毛细管气相色谱-质谱联用程序升温方法对小茴香挥发油化学成分进行鉴定。结果 共分离出5 1个化学组分,鉴定了4 1个化学成分,占挥发油相对含量的93%以上。结论 本实验方法可靠,重现性好,易于操作。 相似文献
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A novel and rapid headspace solvent microextraction followed by gas chromatography-mass spectrometry (HSME-GC-MS) for the analysis of the volatile compounds of Foeniculum vulgare Mill is described. HSME parameters including extracting solvent, extraction temperature and time, headspace volume and particle size were optimized. As a result, benzyl alcohol was finally used for the extraction at 70 degrees C for 20 min with headspace volume of 12.1 ml and particle size of 120 mesh. Under the determined conditions, the powered samples of Foeniculum vulgare Mill were directly applied for the analysis. A comparison of HSME-GC-MS, solid phase microextraction (SPME)-GC-MS and steam distillation (SD)-GC-MS methods was made and showed that the HSME-GC-MS method was simple, inexpensive and effective and can be used for the analysis of volatile compounds in traditional Chinese medicines (TCMs). 相似文献
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Agarwal R Gupta SK Agrawal SS Srivastava S Saxena R 《Indian journal of physiology and pharmacology》2008,52(1):77-83
PURPOSE: Evaluation of oculohypotensive activity of single drop application of aqueous extract of Foeniculum vulgare in experimental models of glaucoma. METHODS: The evaluation of oculohypotensive activity of Foeniculum vulgare was done in rabbits with normal intraocular pressure (IOP) and with experimentally elevated IOP. The experimental increase in IOP was achieved using water loading and steroid induced glaucoma models. RESULTS: The aqueous seed extract of Foeniculum vulgare exhibited 17.49, 21.16 and 22.03% reduction of intraocular pressure (IOP) in normotensive rabbits at 0.3%, 0.6% and 1.2% (w/v) concentrations respectively. The 0.6% concentration was further evaluated in acute and chronic models of glaucoma. A maximum mean difference of 31.20% was observed between vehicle treated and extract treated eyes in water loading model while a maximum mean IOP lowering of 31.29% was observed in steroid induced model of glaucoma. CONCLUSIONS: The aqueous extract of Foeniculum vulgare possesses significant oculohypotensive activity, which was found to be comparable to that of timolol. Further investigations into the mechanism of action, possible toxicity and human clinical trials are warranted before the Foeniculum vulgare finds place in the arsenal of antiglaucoma drugs prescribed by physicians. 相似文献
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This study was aimed to formulate and evaluate anti-aging effects of a topical cream (w/o emulsion) containig extract of Fennel (Foeniculum vulgare) versus its base. Formulation containing 4% concentrated extract of Foeniculum vulgare was developed by entrapping in the inner aqueous phase of w/o emulsion and base contained no extract. Both the base and formulation were stored under different storage conditions to predict their stability. The formulation and base were evaluated for effect on skin moisture and transepidermal water loss (TEWL). The base showed insignificant while the formulation showed significant effects on skin moisture and TEWL. The parameter volume and surface evaluation of living skin (SELS) parameters SEr, SEsc, SEsm, SEw were also evaluated and showed a significant (p < or = 0.05) decline. The texture parameter energy showed a significant increase proving that the formulation possesses potential anti-aging effects. 相似文献
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In a previous study the relaxant (bronchodilatory) effect of Foeniculum vulgare on isolated guinea pig tracheal chains was demonstrated. To study mechanisms responsible for this effect the present study evaluated the inhibitory effect of this plant on contracted tracheal chains of guinea pig. The relaxant effects of aqueous and ethanol extracts and an essential oil from Foeniculum vulgare were compared to negative controls (saline for aqueous extract and essential oil and ethanol for ethanol extract) and a positive control (diltiazem) using isolated tracheal chains of the guinea pig precontracted by 10 microM methacholine (group 1) and 60 mM KCl (group 2, n = 7 for each group). In the group 1, experiments diltiazem, ethanol extract, and essential oil from Foeniculum vulgare showed a significant relaxant effect on methacholine induced contraction of tracheal chains compared to those of negative controls (p < 0.05 to p < 0.001). In addition the effect of the ethanol extract was significantly greater than that of diltiazem (p < 0.001). However, the aqueous extract did not show any relaxant effect in group 1. In the group 2 experiments, only diltiazem showed a significant relaxant effect on KCl induced contraction of tracheal chains (p < 0.001). The relaxant effects of ethanol extracts and essential oil obtained in the group 2 experiments were significantly lower than those in group 1 (p < 0.05 to p < 0.001). These results confirm the bronchodilatory effects of ethanol extract and essential oil from Foeniculum vulgare. However with regard to the effect of KCl on calcium channels, the results indicated that the inhibitory effect of ethanol extracts and essential oil from Foeniculum vulgare on calcium channels is not contributing to their relaxant (bronchodilatory) effects on guinea pig tracheal chains. However the results suggest a potassium channel opening effect for this plant, which may contribute on its relaxant effect on guinea pig tracheal chains. 相似文献
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用螯形主体分子的识别功能选择分离小茴香挥发油中的茴香醚 总被引:1,自引:0,他引:1
目的 用主客体分子包结法选择分离小茴香挥发油中的化学成分。方法 利用超分子化学的分子识别功能,采用螯形主体分子trans-1,2-二苯基1,2-苊二醇作为主体分子,小茴香挥发油的化学成分作为客体分子,螯形主体分子可与其中有互补性的化学成分形成包结化合物,以晶体形式析出。结果 选择性地识别小茴香挥发油中的茴香醚并形成包结物晶体,用Kugelrohr真空蒸馏技术将茴香醚从包结物晶体中分离出,产率11.2%。采用IR、粉末XRD分析方法确定了包结物的形成。采用IR ,1HNMR和MS等分析方法,确定了被分离的化学组分的结构为反式茴香醚。结论 此法分离挥发油化学组分有选择性高、速度快、方法简单等优点。 相似文献
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Antimicrobial constituents of Foeniculum vulgare 总被引:1,自引:0,他引:1
Kwon YS Choi WG Kim WJ Kim WK Kim MJ Kang WH Kim CM 《Archives of pharmacal research》2002,25(2):154-157
A phenyl propanoid derivative, dillapional(1) was found to be a antimicrobial principle of the stems of Foeniculum vulgare (Umbelliferae) with MIC values of 125, 250 and 125/ against Bacillus subtilis, Aspergillus niger and Cladosporium cladosporioides, respectively. A coumarin derivative, scopoletin(2) was also isolated as marginally antimicrobial agent along with inactive compounds, dillapiol(3), bergapten(4), imperatorin(5) and psolaren(6) from this plant. The isolates 1-6 were not active against the Escherichia coli. 相似文献
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Antioxidant and antimicrobial activity of Foeniculum vulgare and Crithmum maritimum essential oils 总被引:3,自引:0,他引:3
The essential oils obtained from Crithmum maritimum L. (marine fennel) and two samples of Foeniculum vulgare Miller (common fennel) were analysed by GC and GC-MS and assayed for their antioxidant and antibacterial activities. The antioxidant activity of the oils was evaluated by two lipid model systems: a modified thiobarbituric acid reactive species (TBARS) assay and a spectrophotometric detection of hydroperoxydienes from linoleic acid in a micellar system. The oils demonstrated antioxidant capacities, comparable in some cases to that of alpha-tocopherol and butylated hydroxytoluene (BHT), used as reference antioxidants. Concerning the antimicrobial tests the essential oils were assayed against twenty-five genera of bacteria, including animal and plant pathogens, food poisoning and spoilage bacteria. Oils from the two samples of F. vulgare showed a higher and broader degree of inhibition than that of C. maritimum. 相似文献
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Effect of Foeniculum vulgare Mill. seed extract on the genital organs of male and female rats 总被引:3,自引:0,他引:3
T Malini G Vanithakumari N Megala S Anusya K Devi V Elango 《Indian journal of physiology and pharmacology》1985,29(1):21-26
Following the oral administration of acetone extract of Foeniculum vulgare (fennel) seeds for 15 days is male rats, total protein concentration was found to be significantly decreased in testes and vas deferens and increased in seminal vesicles and prostate gland. There was a decrease in activities of acid and alkaline phosphatase in all these regions, except that alkaline phosphatase was unchanged in vasa. In female rats, oral administration of the extract for 10 days led to vaginal cornification and oestrus cycle. While moderate doses caused increase in weight of mammary glands, higher doses increased the weight of oviduct, endometrium, myometrium, cervix and vagina also. The results confirm the oestrogenic activity of the seed extract. 相似文献