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Phytochemicals alkaloids

Alkaloids. www.friedli.com/herbs/phytochem/alkaloids/alkaloidlJitml KEGG Kyoto Encyclopedia of Genes and Genomes, www.genome.jp/kegg/ Plant Alkaloids - Wayne s Word, http //waynesword.palomar.edu/ww0703.htm Wikipedia-Alkaloid. http //en.wikipedia.org/wiki/Alkaloid/... [Pg.460]

A phytochemical investigation of taxine in the yew has been conducted by Kuhn and Schafer, who have devised special methods for the detection, estimation and purification of the alkaloid. Masson states that Taxus canadensis contains an alkaloid giving the colour reactions of taxine but different from it in being crystalline and having m.p. 238-9° no ephedrine was present. [Pg.769]

The authors suggest that altitudinal variation in phytochemical constituents remains unknown. That this is factually incorrect is revealed by the well-known work on the effect of elevation on cyanogenic glycosides, as shown in the case of the clovers above, as well as in the case of alkaloid variation in Berberis just described. [Pg.63]

Researchers from Eli Lilly pharmaceuticals, (a company founded in 1876 by Colonel Eli Lilly veteran of the US Civil War), undertook further intensive phytochemical studies and characterized 60 alkaloids, of which a group of 20 binary indole alkaloids—including vincristine and vinblastine. Vinblastine sulphate (Velbe ) inhibits the polymerization of tubulin and is used to treat generalized Hodgkin s disease and chorionepithelioma, whereas vincristine sulphate (Oncovin ) is used to treat leukemia in children. [Pg.169]

Quinolizine alkaloids, including sophocarpine, matrine and sophoridine have been determined by GC-MS techniques in kuhuang, a traditional Chinese medicine (GC = gas chromatography) <2005MI967>. Similarly, GC-MS has allowed a phytochemical study of the quinolizidine alkaloids of Genista tenera <2005MI264>. [Pg.10]

The phytochemical contents of cultivars of the same species can be significantly different, even within the same field. Evidence for this statement has been given in several recent papers and reviews glucosinolates (Rosa et al., 1997), phenolic compounds (Osier and Lindroth, 2001 Kalt et al., 2001 Howard et al., 2002 Scalzo et al., 2005 Dykes et al., 2005 Pandjaitan et al., 2005 Mpofu et al. 2006) and alkaloids and terpenoids (Theis and Lerdau, 2003). [Pg.317]

Vanrensen, I. and Veit, M. (1995). Simultaneous determination of phenolics and alkaloids using ion-exchange chromatography for sample preparation. Phytochemical Analysis 6 121-124. [Pg.219]

This chapter reviews recent findings about the health benefits of phytochemicals present in fruits, vegetables, nuts, seeds, and herbs, including phenolics, carotenoids, sterols, and alkaloids. These phytochemicals are extracted using emerging technologies such as supercritical carbon dioxide (SC-CO2) extraction, PEF, MWE, HPP, UE, and OH. The impact of important parameters related to sample preparation (particle size and moisture content) and extraction process (temperature, pressure, solvent flow rate, extraction time, and the use of a cosolvent) on the efficiency of extraction and on the characteristics of the extracted products is evaluated based on an extensive review of recent literature. The future of extraction of phytochemicals is certainly bright with the... [Pg.235]

A large variety of phytochemicals are found within agricultural commodities. This chapter focuses on four main groups phenolics, carotenoids, sterols, and alkaloids. In addition, recent research related to the health benefits of these phytochemicals will be briefly reviewed. Table 9.1 summarizes the main chemical structure and solubility in organic solvents of phytochemicals such as phenolics (flavonoids), carotenoids, sterols, and alkaloids. [Pg.237]

For chromatographic purification of ergot alkaloids from seed extracts see Phytochem. 11,1479(1972). [Pg.119]

Mateus, L., Cherkaoui, S., Christen, P., and Veuthey, J. L. (1998). Capillary electrophoresis for the analysis of tropane alkaloids pharmaceutical and phytochemical applications. ]. Pharm. Biomed. Anal. 18, 815-825. [Pg.307]

Molyneux, R.J., James, L.F., Panter, K.E. and Ralphs, M.H. (1991b). Analysis and distribution of swainsonine and related polyhydroxyindolizidine alkaloids by thin layer chromatography, Phytochem. Anal., 2, 125-129. [Pg.69]

Tillequin F. (2007) Rutaceous alkaloids as models for the design of novel antitumor drugs. Phytochem Rev 6 65-79. [Pg.176]

Although it is comparatively easy to explain the fact that some alkaloids inhibit AChE because of their molecular features, it is not easy to correlate chemical structure and activity for some other phytochemical types for which AChE inhibition has recently been reported. [Pg.406]

Manners, G. D. and Pfister, J. A. 1993. Normal phase liquid-chromatographic analysis of toxic norditerpenoid alkaloids. Phytochemical Analysis, 4 14-18. [Pg.244]

Soto-Hernandez, M. and Jackson, A. H. 1993. Studies of alkaloids in foliage of Erythrinia berteroana and E. poeppigiana detection of 3-erythroidine in goats milk. Phytochemical Analysis, 4 97-99. [Pg.246]

Phytochemical studies on tobacco NT334 alkaloids. 11. A new alkaloid in Nicoti ana tabacum roots. Phytochemistry... [Pg.357]


See other pages where Phytochemicals alkaloids is mentioned: [Pg.11]    [Pg.11]    [Pg.23]    [Pg.162]    [Pg.400]    [Pg.173]    [Pg.433]    [Pg.154]    [Pg.300]    [Pg.303]    [Pg.315]    [Pg.235]    [Pg.236]    [Pg.249]    [Pg.261]    [Pg.261]    [Pg.262]    [Pg.264]    [Pg.12]    [Pg.14]    [Pg.95]    [Pg.101]    [Pg.107]    [Pg.62]    [Pg.105]    [Pg.11]    [Pg.3]    [Pg.19]    [Pg.22]    [Pg.29]    [Pg.71]    [Pg.72]   
See also in sourсe #XX -- [ Pg.311 ]

See also in sourсe #XX -- [ Pg.247 ]




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