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21Author    JohnL. Ingham, Satoshi Tahara, StanleyZ. DziedzicRequires cookie*
 Title    A Chemical Investigation of Pueraria mirifica Roots  
 Abstract    Ten isoflavonoids including daidzein, daidzin (daidzein-7-O-glucoside), puerarin (daidzein-8-C-glucoside), genistein and coumestrol have been isolated from a methanolic extract of Pueraria mirifica roots. Apart from these known compounds and mirificin, a novel apioside derivative of puerarin, the roots have also been found to contain three minor coumestans and one 5-deoxyiso-flavone for which only limited spectroscopic data are currently available. 
  Reference    Z. Naturforsch. 41c, 403 (1986); received December 9 1985 
  Published    1986 
  Keywords    Leguminosae, Pueraria, Isoflavonoids, Isoflavones, Coumestans, Aglycones, Glycosides 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0403.pdf 
 Identifier    ZNC-1986-41c-0403 
 Volume    41 
22Author    JohnL. Ingham, Satoshi Tahara, StanleyZ. DziedzicRequires cookie*
 Title    Major Flavanones from Lonchocarpus guatamalensis  
 Abstract    The flavanones 25-lupinifolin and 2/?:3/?-lupinifolinol have been isolated as major components from a methanolic extract of Lonchocarpus guatamalensis root bark. These known compounds occur together with a minor flavanone (2/?:3/?-3-0-methyl-lupinifolinol) not previously recog-nized as a natural product. 
  Reference    Z. Naturforsch. 43c, 818—822 (1988); received June 20/August 23 1988 
  Published    1988 
  Keywords    Leguminosae, Lonchocarpus, Flavonoids Flavanones, Phenolic Compounds 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0818.pdf 
 Identifier    ZNC-1988-43c-0818 
 Volume    43 
23Author    Yusuke Shibuya, Satoshi Tahara, Yutaka Kimura, Junya MizutaniRequires cookie*
 Title    New Isoflavone Glucosides from White Lupin (Lupinus albus L.)  
 Abstract    Further investigation of polar constituents in white lupin roots revealed the presence of genistein 7-O-ß-glucoside (la), genistein 4'-0-ß-glucoside (lb), 2'-hydroxygenistein 7-0-ß-glucoside (2a) and 2'-hydroxygenistein 4'-0-ß-glucoside (2b) as simple isoflavone gluco­ sides; luteone 7-O-ß-glucoside (3 a), licoisoflavone A 7-O-ß-glucoside (4 a) and licoisoflavone A 4'-0-ß-glucoside (4b) as prenylated (= 3,3-dimethylallyl-substituted) isoflavone glucosides; and genistein 7-0-ß-(6"-0-malonyl)glucoside (lam) and 2'-hydroxygenistein 7-0-ß-(6''-0-malonyl)glueoside (2 am) as malonylated isoflavone glucosides. Six compounds (2 a, 2 b, 3 a, 4a, 4b, and 2am) are new naturally occurring isoflavone glucosides. 
  Reference    Z. Naturforsch. 46c, 513—518 (1991); received February 12/May 2 1991 
  Published    1991 
  Keywords    Isoflavonoids, Malonylglucosides, White Lupin, Lupinus albus, Leguminosae 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0513.pdf 
 Identifier    ZNC-1991-46c-0513 
 Volume    46 
24Author    JohnL. Ingham, SatoshiT. Ah, O. RnRequires cookie*
 Title    Fungitoxic Isoflavones from Lupinus albus and other Lupinus Species  
 Abstract    The constitutive isoflavones genistein, 2'-hydroxygenistein, wighteone and luteone have been isolated in varying amounts from methanolic leaf washings of eight species belonging to the legume genus Lupinus. These four compounds likewise occur in the flower buds, stems, roots and im mature pods o f L. albus, and in stems and roots o f L. angustifolius and L. mutabilis. A m inor isoflavone present in L. albus and L. luteus leaf washings has been identified by chemical and spectroscopic procedures as 5,7,4'-trihydroxy-3-methoxy-6-(3,3-dimethylallyl)isoflavone (lupiso-flavone). Apart from genistein, 2'-hydroxygenistein, wighteone and luteone, the roots of L. albus also contain alpinumisoflavone, licoisoflavone B and 6,3'-di-(3,3-dimethylallyl)genistein (lupalbi-genin). 
  Reference    Z. Naturforsch. 38c, 194—200 (1983); received N ovem ber 3 1982 
  Published    1983 
  Keywords    Leguminosae, Papilionoideae, Lupinus, Lupins, Isoflavonoids, Isoflavones, Phenolic Compounds, Antifungal Activity 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0194.pdf 
 Identifier    ZNC-1983-38c-0194 
 Volume    38 
25Author    M. Asaaki, M. Oriyam, SunaoO. Rihara, L. Ingham, Ju, K. Aw Ab Ata, M. IzutaniRequires cookie*
 Title    Naturally Occurring Coumaranochroman-4-ones: a New Class of Isoflavonoids from Lupins and Jamaican Dogwood  
 Abstract    A further investigation o f the isoflavonoid com ponents o f Piscidia erythrina, Lupinus alhus and L. luteus has revealed the presence o f 3-hydroxy-and 3-m ethoxy-coumaranochrom an-4-ones. These compounds are the first known representatives o f a new type o f naturally occur­ ring isoflavonoid. Using a combination o f chemical and spectroscopic methods, the com pounds were identified as 3,5,7,4'-tetrahydroxy-5'-methoxy-3'-(3,3-dimethylallyl)couma-ranochroman-4-one (piscerythrol, 1), 3,5,7,4'-tetrahydroxy-6,3'-di(3,3-dimethylallyl)couma-ranochrom an-4-one (lupinol A, 3), 5,7,4'-trihydroxy-3-methoxy-6,3'-di(3,3-dimethylallyl)-coum aranochrom an-4-one (lupinol B, 6) and 3,5,7,4'-tetrahydroxy-6-(3,3-dimethylallyl)-coum aranochrom an-4-one (lupinol C, 7). All four isoflavonoids were found to have the cis relative configuration at C-2/C-3. Possible biogenetic relationships between the coumarano-chrom an-4-ones and other isoflavonoids (isoflavones and coum aronochrom ones) found in Piscidia and Lupinus are briefly discussed. 
  Reference    Z. Naturforsch. 46c, 331 (1991); received February 28 1991 
  Published    1991 
  Keywords    Leguminosae, Lupinus, Piscidia erythrina, Isoflavonoids, Coumaranochroman-4-ones, Coum aronochrom ones 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0331.pdf 
 Identifier    ZNC-1991-46c-0331 
 Volume    46 
26Author    Hirobumi Yamamoto, Masahiko Ichimura, Noriko Ishikawa, Toshiyuki Tanaka, Munekazu Iinuma, Mizuo MizunoRequires cookie*
 Title    Localization of Prenylated Flavonoids in Sophora flavescens var. angustifolia Plants  
 Abstract    A histochemical analysis was carried out on the distribution of flavonoid derivatives in Sophora flavescens var. angustifolia plant. Prenylated flavonoids such as kushenol I, kurari-none, sophoraflavanone G and des-O-methylanhydroicaritin were mainly localized in the peri­ derm (cork layers, and cork layer-like tissues scattered in parenchymatous tissues of the root system). Pterocarpan derivatives, maackiain, maackiain-3-O-glucoside (trifolirhizin) and its 6'-0-malonyl ester, were distributed in the cortex, cambium and pith as an ester form. In the aerial parts of the plant, neither pterocarpan nor prenylated flavonoid derivatives, but only flavone monoglucosides such as luteolin-7-O-glucoside and apigenin-7-O-glucoside were de­ tected. 
  Reference    Z. Naturforsch. 47c, 535—539 (1992); received April 2/May 22 1992 
  Published    1992 
  Keywords    Sophora flavescens var angustifolia, Leguminosae, Prenylated Flavonoids, Pterocarpan, Flavone Glucoside 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0535.pdf 
 Identifier    ZNC-1992-47c-0535 
 Volume    47 
27Author    Planchuelo-R Avelo3b, L. Udger, W. Ittec, M. Ichael, W. Ink3Requires cookie*
 Title    Quinolizidine Alkaloid Profiles of South American Lupins: Lupinus linearis and the Lupinus gibertianus Complex  
 Abstract    The alkaloid composition of leaves of Lupinus linearis D esr. (3 ecotypes) and L. gibertia­ nus Smith (6 ecotypes) from A rgentina and Brazil were studied by capillary gas-liquid chrom atography and GLC-mass spectrom etry (EI-M S). Both species are closely related according to morphological criteria. This view is supported by the alkaloid profiles which are very similar and share a series of new and uncom m on alkaloids. M ain alkaloids are lupanine, 13-hydroxylupanine, esters of 13-hydroxylupanine (e.g. 13-angeloyloxylupanine, 13-tigloyloxylupanine, 13-benzoyloxylupanine, 13-ci5/frans-cinnamoyloxylupanine). M inor alkaloids are: sparteine, 1 1 ,1 2 -dehydrosparteine, am m odendrine, tetrahydrorhom bifoline, angustifoline, a-isolupanine, 5,6-dehydrolupanine, 11,12-dehydrolupanine, N-formylangusti-foline, 13-ds-cinnamoyloxymultiflorine. New m inor alkaloids which have been tentatively identified by GLC-MS are 13-hydroxy-17-oxolupanine and corresponding esters (13-an-geloyloxy-17-oxolupanine, 13-tigloyloxy-17-oxolupanine, 13-benzoyloxy-17-oxolupanine, 13-cis-cinnamoyloxy-17-oxolupanine, and 13-fran.s--cinnamoyloxy-17-oxolupanine). 
  Reference    Z. Naturforsch. 48c, 702—706 (1993); received June 281993 
  Published    1993 
  Keywords    Lupinus, Leguminosae, Quinolizidine Alkaloids, Chem otaxonom y, A lkaloid Profile 
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 TEI-XML for    default:Reihe_C/48/ZNC-1993-48c-0702.pdf 
 Identifier    ZNC-1993-48c-0702 
 Volume    48 
28Author    Maurice Jay, Vincenzo De Luca, Ragai IbrahimRequires cookie*
 Title    Meta-Methylation o f Flavonol Rings A (8-) and B (3'-) Is Catalysed by Two Distinct O-Methyltransferases in Lotus corniculatus  
 Abstract    Two O-methyltransferases specific for flavonol rings A and B were isolated from young flower buds of Lotus corniculatus. They were partially purified by ammonium sulphate precipitation and successive chromatography on Sephadex G-100 and Polybuffer ion exchanger. One enzyme focused at pi 5.5 and catalysed the O-methylation of position 8 of flavonols with a pH optimum of 8.1. The other enzyme had a pi o f 5.1 and preferentially attacked position 3' at an optimum pH of 7.7. The methylated products o f both enzymes seem to contribute to the flower colour of Lotus and may be used as biochemical markers in genetic studies of this genus. 
  Reference    Z. Naturforsch. 38c, 413 (1983); received December 21 1982 
  Published    1983 
  Keywords    Lotus corniculatus, Leguminosae, O-Methyltransferase, Flavonols, 8-O-Methylation, 3'-0-Methylation 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0413.pdf 
 Identifier    ZNC-1983-38c-0413 
 Volume    38 
29Author    Kaleab Asres, Bandreas Tei, Bmichael WinkRequires cookie*
 Title    Quinolizidine Alkaloids of Platycelphium vöense (Engl.) Wild (Leguminosae)  
 Abstract    13 Alkaloids were identified in leaves and twigs of Platycelphium vöense (a monotypic genus in the tribe Sophoreae) by capillary G LC and GLC-MS. Cytisine, N-methylcytisine, anagyrine and 5,6-dehydrolupanine fig­ ured as major and N-formylcytisine, N-acetylcytisine, baptifoline, thermopsine, isolupanine, and rhombifoline as minor alkaloids in both leaves and twigs. Lupanine occurred in considerable amount in the leaves and as a minor component in the twigs. The rare alkaloid, 6ß-hydroxylupanine, was detected only in the leaves while N-ethylcytisine was shown to be a minor constituent of the twigs only. 
  Reference    Z. Naturforsch. 52c, 129—131 (1997); received October 17/November 11 1996 
  Published    1997 
  Keywords    Platycelphium vöense, Leguminosae, Quinolizidine Alkaloids, Capillary Gas Chromatography (G L C ), GLC-Mass Spectrometry 
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 TEI-XML for    default:Reihe_C/52/ZNC-1997-52c-0129_n.pdf 
 Identifier    ZNC-1997-52c-0129_n 
 Volume    52 
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