Does an apple a day keep the doctor away because a phytoestrogen a day keeps the virus at bay? A review of the anti-viral properties of phytoestrogens.

abstract：:Diterpene esters of the phorbol and ingenol types are known to be highly active tumor promoting agents that typically occur in members of the Euphorbiaceae. In the present work, Euphorbia leuconeura, a rare indoor plant, is analyzed for its tumor promoting potential. Latex as well as total leaf extracts exhibited Epst...

journal_title：Phytochemistry

authors： Vogg G,Mattes E,Rothenburger J,Hertkorn N,Achatz S,Sandermann H Jr

更新日期：1999-05-01 00:00:00

abstract：:Three abietane diterpenoid dimers, bisprioterones A-C (1-3), were isolated from roots of the Chinese folk medicinal plant Salvia prionitis Hance (Labiatae). Compounds 1-3 possessed two different abietane diterpenoid skeleta, which were linked via either a C-C single bond (1 and 2) or an ether bridge (3). Their structu...

journal_title：Phytochemistry

authors： Xu J,Chang J,Zhao M,Zhang JS

更新日期：2006-04-01 00:00:00

abstract：:Five p-terphenyl derivatives named thelephantins D-H (1-5) together with nine known compounds, thelephantins A-C (6-8), ganbajunin E (9), p-hydroxylbenzoic acid (10), ganbajunin C (11), thelephorin A (12), 2-O-methylatromentin (13) and atromentin (14), were isolated from the methanolic extract of fruit bodies of the T...

journal_title：Phytochemistry

authors： Ngoc Quang D,Hashimoto T,Hitaka Y,Tanaka M,Nukada M,Yamamoto I,Asakawa Y

更新日期：2003-08-01 00:00:00

abstract：:Non-targeted LC-MS metabolomics on fruit of three wild and domesticated apple species (Malus sylvestris, M. sieversii and M. domestica) showed that two crab apple (M. sylvestris) accessions were distinguished by high concentrations of an ascorbic acid glycoside (AAG). This was partly purified, but key NMR signals were...

journal_title：Phytochemistry

authors： Richardson AT,Cho J,McGhie TK,Larsen DS,Schaffer RJ,Espley RV,Perry NB

更新日期：2020-05-01 00:00:00

abstract：:Eleven triterpenoid saponins were isolated from the roots of Gypsophila trichotoma Wender. (G. trichotoma Wender. var. trichotoma) (Caryophyllaceae), together with one known compound. The structures were established on the basis of extensive NMR analysis ((1)H, (13)C NMR, COSY, TOCSY, ROESY, HSQC, and HMBC), completed...

journal_title：Phytochemistry

authors： Voutquenne-Nazabadioko L,Gevrenova R,Borie N,Harakat D,Sayagh C,Weng A,Thakur M,Zaharieva M,Henry M

更新日期：2013-06-01 00:00:00

abstract：:Bioassay-guided fractionation against alpha-glucosidase resulted in isolation and characterization of eight active compounds from the EtOH extract of the seeds of Syagrus romanzoffiana. Of these, seven are stilbenoids, and two of them, 13-hydroxykompasinol A (1) and scirpusin C (4), possess potent inhibitory activity ...

journal_title：Phytochemistry

authors： Lam SH,Chen JM,Kang CJ,Chen CH,Lee SS

更新日期：2008-03-01 00:00:00

abstract：:Uronic acid oxidase activity was found in an extract from harvested peaches that was incubated with citrus pectin at pH 8.5. The product of this reaction was identified by GC-MS analysis to be galactaric acid. The reaction was linear at 37 degrees C for up to 20 h, and the pH optimum was 8.5. The activity found in fir...

journal_title：Phytochemistry

authors： Cantu D,Greve LC,Lurie S,Labavitch JM

更新日期：2006-01-01 00:00:00

abstract：:A polynucleotide (or a fragment of RNA) was purified to apparent homogeneity by HPLC from mycelium of the wild strain 74A of the mould Neurospora crassa, after growth on sucrose and in the presence of saturating amounts of inorganic phosphate (Pi) for 72 hr at 30 degrees. The M(r) was ca 20,000 as determined by HPLC a...

journal_title：Phytochemistry

authors： Carmona EC,Han SW,Palma MS,Rossi A

更新日期：1996-02-01 00:00:00

abstract：:Two bromophenols, together with three known compounds, were isolated from the methanolic extract of the marine alga, Rhodomela confervoides. By means of MS and NMR spectroscopic analyses, they were identified as 3-bromo-4-[2,3-dibromo-4,5-dihydroxyphenyl] methyl-5-(hydroxymethyl) 1,2-benzenediol (1) and 3-bromo-4-[2,3...

journal_title：Phytochemistry

authors： Xu N,Fan X,Yan X,Li X,Niu R,Tseng CK

更新日期：2003-04-01 00:00:00

abstract：:Tannins are the most abundant secondary metabolites made by plants, commonly ranging from 5% to 10% dry weight of tree leaves. Tannins can defend leaves against insect herbivores by deterrence and/or toxicity. Contrary to early theories, tannins have no effect on protein digestion in insect herbivores. By contrast, in...

journal_title：Phytochemistry

authors： Barbehenn RV,Peter Constabel C

更新日期：2011-09-01 00:00:00

abstract：:Investigation of the aerial parts of Rhyncholacis penicillata afforded the new chromenes, 7-hydroxy-6-(3-methylbutyryl)-5-oxymethyl-chromene (rhynchonin A) and 7-hydroxy-6-(2-methylbutyryl)-6-oxymethylchromene (rhynchonin B). Structures were elucidated by spectroscopic methods and independent synthesis. Rhynchonin A s...

journal_title：Phytochemistry

authors： Burkhardt G,Becker H,Grubert M,Thomas J,Eicher T

更新日期：1994-12-01 00:00:00

abstract：:Evidence is presented for the presence of xylogalacturonan (XGA) in Arabidopsis thaliana. This evidence was obtained by extraction of pectin from the seeds, root, stem, young leaves and mature leaves of A. thaliana, followed by treatment of these pectin extracts with xylogalacturonan hydrolase (XGH). Upon enzymatic tr...

journal_title：Phytochemistry

authors： Zandleven J,Sørensen SO,Harholt J,Beldman G,Schols HA,Scheller HV,Voragen AJ

更新日期：2007-04-01 00:00:00

abstract：:Plant mitochondria can use L-malate and fumarate, which accumulate in large levels, as respiratory substrates. In part, this property is due to the presence of NAD-dependent malic enzymes (NAD-ME) with particular biochemical characteristics. Arabidopsis NAD-ME1 exhibits a non-hyperbolic behavior for the substrate L-ma...

journal_title：Phytochemistry

authors： Tronconi MA,Wheeler MC,Martinatto A,Zubimendi JP,Andreo CS,Drincovich MF

更新日期：2015-03-01 00:00:00

abstract：:Investigation of the extracts of a culture of Cladosporium tenuissimum, a known hyperparasite of several rust fungi, gave rise to the isolation of cladosporols B-E (2-5). Their structure and stereochemistry were elucidated on the basis of 1H and 13C NMR evidence and CD measures. Cladosporols 1-5 were active in inhibit...

journal_title：Phytochemistry

authors： Nasini G,Arnone A,Assante G,Bava A,Moricca S,Ragazzi A

更新日期：2004-07-01 00:00:00

abstract：:Four flavonol glycosides isolated from non-flowering leafy shoots of Iberis saxatilis (Brassicaceae) were characterised by spectroscopic and chemical methods as saxatilisins A-D, the 3-O-β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)[β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranoside, 3-O-β-D-...

journal_title：Phytochemistry

authors： Prescott TA,Kite GC,Porter EA,Veitch NC

更新日期：2013-04-01 00:00:00

abstract：:A new triterpene and its glycosides were isolated from the bark of Schefflera octophylla together with asiatic acid and asiaticoside. Based on spectroscopic data, especially 2DNMR, and chemical transformations the structures of the new compounds were determined as 3 alpha-hydroxy-urs-12-ene-23,28-dioic acid and 3 alph...

journal_title：Phytochemistry

authors： Sung TV,Lavaud C,Porzel A,Steglich W,Adam G

更新日期：1992-01-01 00:00:00

abstract：:Plants belonging to the genus Leonurus, also named motherwort, are traditionally used for anti-gynecological disorder in East Asia, and for sedative in Europe. Chemical investigation of the genus Leonurus not only enriched the natural products library, but also enlarged the pharmacological application of this traditio...

journal_title：Phytochemistry

authors： Zhang RH,Liu ZK,Yang DS,Zhang XJ,Sun HD,Xiao WL

更新日期：2018-03-01 00:00:00

abstract：:Three novel 3 alpha-hydroxy-oleanane-type triterpene oligoglycosyl esters, spinoside C1, C4 and C5, were isolated from the leaves of Acanthopanax spinosus. The structures were established to be 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl esters of 3 alpha, 29-dihydroxy-olean...

journal_title：Phytochemistry

authors： Miyakoshi M,Ida Y,Isoda S,Shoji J

更新日期：1993-12-01 00:00:00

abstract：:Repeated fractionations of the methanol extract of the subterranean parts (rhizomes and roots) of Gentiana siphonantha afforded two new and five known secoiridoids, in addition to the widespread plant constituents beta-sitiosterol, daucosterol and oleanolic acid. The structures of the new acyl secoiridoid glycosides w...

journal_title：Phytochemistry

authors： Tan RX,Kong LD

更新日期：1997-11-01 00:00:00

abstract：:A high purity of β-D-glucan (80.8%) from hull-less barley (Hordeum vulgare L. var. nudum Hook. f.) (HBBG) was isolated by alkali extraction and multi-precipitation with ethanol. The molecular weight (Mw) of HBBG was determined as 571.4 kDa with a broad distribution (Mw/Mn = 1.6) by using HPSEC. According to methylatio...

journal_title：Phytochemistry

authors： Zhang H,Zhang N,Xiong Z,Wang G,Xia Y,Lai P,Ai L

更新日期：2018-11-01 00:00:00

abstract：:Leaves, stem bark and root of Lonchocarpus xuul and Lonchocarpus yucatanensis were studied separately. A chalcone, 2',4-dimethoxy-6'-hydroxylonchocarpin (), and the flavones 5,4'-dihydroxy-3'-methoxy-(6:7)-2,2-dimethylpyranoflavone (2) and 5,4'-dimethoxy-(6:7)-2,2-dimethylpyrano-flavone (3), together with the known ca...

journal_title：Phytochemistry

authors： Borges-Argáez R,Peña-Rodríguez LM,Waterman PG

更新日期：2002-07-01 00:00:00

abstract：:Phytochemical re-investigation of the aerial parts of Bonamia spectabilis (Convolvulaceae) led to the isolation of four minor tetrahydrofuran-type sesquilignans (bonaspectins E-H) together with the known neolignan virolongin A and the known lignan rel-(7S,8R,7'R,8'R)-3,3',4,4',5,5'-hexamethoxylignan. Their structures ...

journal_title：Phytochemistry

authors： Kraft C,Jenett-Siems K,Köhler I,Tofern-Reblin B,Siems K,Bienzle U,Eich E

更新日期：2002-05-01 00:00:00

abstract：:Crenate broomrape (Orobanche crenata) is a parasitic plant that threatens legume production in Mediterranean areas. Pea (Pisum sativum) is severely affected, and only moderate levels of genetic resistance have so far been identified. In the present work we selected the most resistant accession available (Ps 624) and c...

journal_title：Phytochemistry

authors： Angeles Castillejo M,Amiour N,Dumas-Gaudot E,Rubiales D,Jorrín JV

更新日期：2004-06-01 00:00:00

abstract：:The structures of four alkaloids extracted from Lycopodium lucidulum (Lycopodiaceae) were established by X-ray and 2D NMR spectroscopic analyses. The dihydro-derivative of oxolucidine A, which was obtained by NaBH4 reduction of oxolucidine A, was treated with p-bromobenzoyl chloride to afford crystals, whose X-ray cry...

journal_title：Phytochemistry

authors： Tori M,Shimoji T,Shimura SE,Takaoka S,Nakashima K,Sono M,Ayer WA

更新日期：2000-02-01 00:00:00

abstract：:Withania somnifera (L.) Dunal (Solanaceae), commonly known as Ashwagandha, is one of the most valued Indian medicinal plant with several pharmaceutical and nutraceutical applications. Metabolic profiling was performed by GC-MS and NMR spectroscopy on the fruits obtained from four chemotypes of W. somnifera. A combinat...

journal_title：Phytochemistry

authors： Bhatia A,Bharti SK,Tewari SK,Sidhu OP,Roy R

更新日期：2013-09-01 00:00:00

abstract：:Four steroidal glycosides, named abutilosides L, M and N, these being 22S,25S-epoxy-furost-5-ene type glycosides, and abutiloside O, a 20-22 seco-type steroidal glycoside, were isolated from the fresh fruits of Solanum abutiloides. Their structures were determined by 2D NMR spectroscopic analysis and chemical evidence...

journal_title：Phytochemistry

authors： Yoshimitsu H,Nishida M,Nohara T

更新日期：2003-12-01 00:00:00

abstract：:From the mesocarp of Balanites aegyptiaca fruits, two pregnane glycosides were isolated. One is new and identified as pregn-5-ene-3 beta,16 beta,20(R)-triol 3-O-(2,6-di-O-alpha-L-rhamnopyranosyl)-beta-D-glucopyranoside (balagyptin), while the other is known and assigned as pregn-5-ene-3 beta,16 beta,20(R)-triol 3-O-be...

journal_title：Phytochemistry

authors： Kamel MS,Koskinen A

更新日期：1995-12-01 00:00:00

abstract：:The degradation of the beta-conglycinin protein reserves in soybean seeds during germination and early growth begins with the proteolysis of its alpha and alpha' subunits by an enzyme called Protease C1. In the pathway, a number of proteolytic intermediates are produced and subsequently degraded. Determination of the ...

journal_title：Phytochemistry

authors： Tan-Wilson AL,Liu X,Chen R,Qi X,Wilson KA

更新日期：1996-05-01 00:00:00

abstract：:The incomplete structure proposed in 1972 for a unique "flavone-polysaccharide" compound, MF-1, from the liverwort Monoclea forsteri, has been re-examined. Rather than the proposed 8-methoxyluteolin structure with polysaccharides attached to the 7- and 4'-hydroxyls, MF-1 has been shown to be primarily a mixture of pen...

journal_title：Phytochemistry

authors： Markham KR

更新日期：2003-07-01 00:00:00

abstract：:Two isoflavanones (5,7-dihydroxy-2',3',4'-trimethoxy-isoflavanone and 5,7-dihydroxy-2'-methoxy-3',4'-methylenedioxy-isoflavanone), four isoflavanone O-glycosides (5,7-dihydroxy-2',3',4'-trimethoxy-isoflavanone 7-O-beta-glucopyranoside, 5,7-dihydroxy-2'-methoxy-3',4'-methylenedioxy-isoflavanone 7-O-beta-glucopyranoside...

journal_title：Phytochemistry

authors： Zhao M,Duan JA,Che CT

更新日期：2007-05-01 00:00:00