Structural characterization and rheological properties of β-D-glucan from hull-less barley (Hordeum vulgare L. var. nudum Hook. f.).

abstract：:A new bidesmosidic triterpenoidal saponin of hederagenin was isolated from the ethanolic extract of the roots of Symphytum officinale L. Its structure was elucidated by using 1H NMR, 1H-1H COSY NMR, heteronuclear 1H-13C correlated spectroscopy (heteroCOSY), 13C NMR, DEPT, FAB mass spectrometry and chemical evidence as...

journal_title：Phytochemistry

authors： Noorwala M,Mohammad FV,Ahmad VU,Sener B

更新日期：1994-05-01 00:00:00

abstract：:From the aerial parts of Clerodendrum inerme, two megastigmane glucosides (sammangaosides A and B) and a iridoid glucoside (sammangaoside C) were isolated together with 15 known compounds. The structural elucidations were based on analyses of physical and spectroscopic data. ...

journal_title：Phytochemistry

authors： Kanchanapoom T,Kasai R,Chumsri P,Hiraga Y,Yamasaki K

更新日期：2001-09-01 00:00:00

abstract：:A pyrroloisoquinoline alkaloid, 2,3-dimethoxy-6-(3-oxo-butyl)-7,9,10,11,11a,12-hexahydrobenzo[f]pyrrolo[1,2-b]isoquinoline (1), whose structure was determined by spectroscopic methods, was isolated from the aerial parts of Cynanchum komarovii, together with two known alkaloids, 7-demethoxytylophorine (2) and 7-demetho...

journal_title：Phytochemistry

authors： An T,Huang RQ,Yang Z,Zhang DK,Li GR,Yao YC,Gao J

更新日期：2001-12-01 00:00:00

abstract：:The Portuguese pine forest has become dangerously threatened by pine wilt disease (PWD), caused by the pinewood nematode (PWN), Bursaphelenchus xylophilus. Synthetic chemicals are the most common pesticides used against phytoparasitic nematodes but its use has negative ecological impacts. Phytochemicals may prove to b...

journal_title：Phytochemistry

authors： Faria JM,Barbosa P,Bennett RN,Mota M,Figueiredo AC

更新日期：2013-10-01 00:00:00

abstract：:An investigation into the antibacterial properties of Hypericum foliosum Aiton. (Guttiferae) has led to the isolation of a new bioactive acylphloroglucinol natural product which by NMR spectroscopy and mass spectrometry was characterised as 1,3,5-trihydroxy-6-[2''',3'''-epoxy-3'''-methyl-butyl]-2-[2''-methyl-butanoyl]...

journal_title：Phytochemistry

authors： Gibbons S,Moser E,Hausmann S,Stavri M,Smith E,Clennett C

更新日期：2005-06-01 00:00:00

abstract：:Eight previously undescribed ditepenoids, including four oxygenated abietanes (roscotanes A-D) and four oxygenated pimaranes (roscoranes A-D), along with twelve known diterpenoids were isolated from the whole plants of Kaempferia roscoeana. Their structures were elucidated by extensive spectroscopic analysis, and the ...

journal_title：Phytochemistry

authors： Boonsombat J,Mahidol C,Chawengrum P,Reuk-Ngam N,Chimnoi N,Techasakul S,Ruchirawat S,Thongnest S

更新日期：2017-11-01 00:00:00

abstract：:Two new flavanoids, 5,7-dimethoxy-3',4'-methylenedioxyflavanone and isobonducellin along with 2'-hydroxy-2,3,4',6'-tetramethoxychalcone, 5,7-dimethoxyflavone and bonducellin were isolated from the aerial parts of Caesalpinia pulcherrima. The structures of the compounds were settled mainly by interpretation of their 1D...

journal_title：Phytochemistry

authors： Srinivas KV,Koteswara Rao Y,Mahender I,Das B,Rama Krishna KV,Hara Kishore K,Murty US

更新日期：2003-08-01 00:00:00

abstract：:Glucosinolates (GLs) present in root, seed, and leaf extracts of Pentadiplandra brazzeana Baillon were characterized and quantified according to the ISO 9167-1 method based on the HPLC analysis of desulfo-GLs. The analyses were complemented by GC-MS analyses of the isothiocyanates (ITCs) generated from GL degradation ...

journal_title：Phytochemistry

authors： De Nicola GR,Nyegue M,Montaut S,Iori R,Menut C,Tatibouët A,Rollin P,Ndoyé C,Zollo PH

更新日期：2012-01-01 00:00:00

abstract：:Seven pure flavonoids were isolated and identified from five moss species. The flavonoids were the flavones apigenin, apigenin-7-O-triglycoside, lucenin-2, luteolin-7-O-neohesperidoside, saponarine and vitexin; and the biflavonoid bartramiaflavone. Some of these flavonoids were shown to have pronounced antibacterial e...

journal_title：Phytochemistry

authors： Basile A,Giordano S,López-Sáez JA,Cobianchi RC

更新日期：1999-12-01 00:00:00

abstract：:A method is described for the enrichment of odd very-long-chain polyunsaturated fatty acids (VLCPUFAs) by means of RP-HPLC and argentation TLC from total fatty acids of the dinoflagellate A. carterae and their identification as picolinyl esters by means of microbore liquid chromatography-mass spectrometry with atmosph...

journal_title：Phytochemistry

authors： Rezanka T,Nedbalová L,Sigler K

更新日期：2008-11-01 00:00:00

abstract：:A benzoquinone, named alopecuquinone, was isolated from the ethanol extract of the inflorescences of Cyperus alopecuroides. Its structure was primarily elucidated by spectroscopic analysis including 1H, 13C NMR, APT, HMQC, 1H-1H COSY and CIMS. The known flavonoids, vicenin 2, orientin, diosmetin, quercetin 3,3'-dimeth...

journal_title：Phytochemistry

authors： Nassar MI,Abdel-Razik AF,El-Khrisy Eel-D,Dawidar AA,Bystrom A,Mabry TJ

更新日期：2002-06-01 00:00:00

abstract：:The cell extract of a cultured terrestrial Nostoc sp. (UIC 10062), obtained from a sample collected at Grand Mere State Park in Michigan, displayed antiproliferative activity against the HT-29 human colon cancer cell line. Bioactivity-guided fractionation of the cell extract, combined with LC-MS analysis, led to the i...

journal_title：Phytochemistry

authors： Kang HS,Santarsiero BD,Kim H,Krunic A,Shen Q,Swanson SM,Chai H,Kinghorn AD,Orjala J

更新日期：2012-07-01 00:00:00

abstract：:The chemical study on the heartwoods extract of Ventilago harmandiana (Rhamnaceae) resulted in the isolation of ten previously undescribed pyranonaphthoquinones (ventilanones A-J), an undescribed anthraquinone (ventilanone K), together with eight known anthraquinone derivatives. Their structures were elucidated by ext...

journal_title：Phytochemistry

authors： Panthong K,Hongthong S,Kuhakarn C,Piyachaturawat P,Suksen K,Panthong A,Chiranthanut N,Kongsaeree P,Prabpai S,Nuntasaen N,Reutrakul V

更新日期：2020-01-01 00:00:00

abstract：:Seventeen undescribed heterodimers of meroterpene phenol, psocorylins A-Q, were isolated from the fruits of Psoralea corylifolia. Their another monomeric unit derived from flavonone, chalcone, coumarin and isoflavone, respectively. Psocorylins A-E were rare natural spiroketals with the skeleton of 1,4,8-trioxaspiro[4....

journal_title：Phytochemistry

authors： Xu QX,Zhang YB,Liu XY,Xu W,Yang XW

更新日期：2020-08-01 00:00:00

abstract：:We have studied the uptake of [3H]-medicarpin and its glutathione conjugate(s) into vacuolar membrane vesicles from etiolated hypocotyls of mung bean (Vigna radiata). Unconjugated medicarpin is taken up at a low rate in the presence or absence of MgATP. However, [3H]-medicarpin-glutathione conjugate(s), prepared by in...

journal_title：Phytochemistry

authors： Li ZS,Alfenito M,Rea PA,Walbot V,Dixon RA

更新日期：1997-06-01 00:00:00

abstract：:Four new oleanane-type saponins 3-O-α-L-rhamnopyranosyl-(1 → 4)-β-D-glucuronopyranosyl-22-O-β,β-dimethylacryloylA1-barrigenol (1), 3-O-α-L-rhamnopyranosyl-(1 → 4)-β-D-glucuronopyranosyl-22-O-angeloylA1-barrigenol (2), 3-O-β-D-glucopyranosyl-(1 → 2)-[β-D-glucopyranosyl-(1 → 6)]-β-D-glucopyranosyl-21,22,28-O-triacetyl-(...

journal_title：Phytochemistry

authors： Aslan Erdem S,Mitaine-Offer AC,Miyamoto T,Kartal M,Lacaille-Dubois MA

更新日期：2015-02-01 00:00:00

abstract：:Twenty-four axenic strains of planktonic Anabaena with straight trichomes, assigned to 7 species, were investigated by analyzing the pattern and content of their fatty acid composition and comparing their fatty acid composition with their morphological properties. In general, the fatty acids in planktonic Anabaena con...

journal_title：Phytochemistry

authors： Li R,Watanabe MM

更新日期：2001-07-01 00:00:00

abstract：:The dichloromethane extract from leaves of Dictyoloma vandellianum afforded five alkaloids 2-(14'-hydroxy-14',15'-dimethylhexadecanyl)-4-quinolone, 2-(12'-hydroxy-12'-methyltridecanyl)-3-methoxy-4-quinolone, 2-(12'-hydroxy-12'-methyltridecanyl)-4-quinolone, 2-(14'-hydroxy-14',15'-dimethylhexadecanyl)-3-methoxy-4-quino...

journal_title：Phytochemistry

authors： Sartor CF,da Silva MF,Fernandes JB,Vieira PC,Fo ER,Garcia Cortez DA

更新日期：2003-05-01 00:00:00

abstract：:Both in vivo and in vitro ACC-oxidase activities as well as ethylene production from embryonic axes of chickpea seeds were strongly inhibited by EGTA, a selective extracellular Ca2+ ion chelator, indicating that the influx of Ca2+ is important for enzymatic activity. EGTA inhibition was restored by exogenous Ca2+. Tre...

journal_title：Phytochemistry

authors： Gallardo M,Gómez-Jiménez MC,Matilla A

更新日期：1999-02-01 00:00:00

abstract：:From the dried roots of Cephaelis acuminata, five tetrahydroisoquinoline-monoterpene glycosides, 2-O-beta-D-glucopyranosyldemethylalangiside, demethylisoalangiside, 6"-O-beta-D-glucopyranosylipecoside, 6"-O-alpha-D-glucopyranosylipecoside and (4R)-4-hydroxyipecoside, were isolated. The structures of these glycosides w...

journal_title：Phytochemistry

authors： Itoh A,Baba Y,Tanahashi T,Nagakura N

更新日期：2002-01-01 00:00:00

abstract：:A novel minor triterpenoid saponin mimusin (3-O-[beta-D-glucopyranosyl- (1-->6)-beta-D-glucopyranosyl]-2 beta,3 beta,6 beta,23-tetrahydroxyolean- 12-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha- L- rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside was isolated from the seeds o...

journal_title：Phytochemistry

authors： Sahu NP,Koike K,Jia Z,Nikaido T

更新日期：1997-03-01 00:00:00

abstract：:Two mulinane-type diterpenoids were isolated from Azorella compacta; namely 20-hydroxymulin-11,13-dienyl acetate and 13,14-dihydroxymulin-11-en-20-oic acid. The structures were elucidated by analysis of their spectroscopic data. These compounds, as well as three previously isolated diterpenes, were evaluated as potent...

journal_title：Phytochemistry

authors： Loyola LA,Bórquez J,Morales G,San-Martín A,Darias J,Flores N,Giménez A

更新日期：2004-07-01 00:00:00

abstract：:Bioassay-directed fractionation of an ethyl acetate extract from cultures of the fungus Malbranchea aurantiaca led to the isolation of two phytotoxic compounds, namely, 1-hydroxy-2-oxoeremophil-1(10),7(11),8(9)-trien-12(8)-olide (1) and penicillic acid (2). The structure of 1 was established by spectroscopic and X-ray...

journal_title：Phytochemistry

authors： Martínez-Luis S,González MC,Ulloa M,Mata R

更新日期：2005-05-01 00:00:00

abstract：:In an attempt to reveal the relationships between alkaloid biosynthesis and phylogeny, we investigated by GC-MS the alkaloid patterns of 22 species and 3 hybrids (from 45 locations) from seven main sections of the genus Narcissus (Amaryllidaceae). The results indicate that the first alkaloids to evolve in the genus Na...

journal_title：Phytochemistry

authors： Berkov S,Martínez-Francés V,Bastida J,Codina C,Ríos S

更新日期：2014-03-01 00:00:00

abstract：:In order to study the evolution of pathways of plant secondary metabolism, we use the biosynthesis of pyrrolizidine alkaloids (PAs) as a model system. PAs are regarded as part of the plant's constitutive defense against herbivores. Homospermidine synthase (HSS) is the first specific enzyme of PA biosynthesis. The gene...

journal_title：Phytochemistry

authors： Nurhayati N,Gondé D,Ober D

更新日期：2009-03-01 00:00:00

abstract：:Genus Leucas with about 41 species found in India, is an Asian genus with separation from its close relatives in Africa based on phylogenetic evidence. Present study represents the only comprehensive phytochemical investigation on this genus. We have analyzed the seed fatty acid compositions of 26 species and five var...

journal_title：Phytochemistry

authors： Choudhary AK,Sunojkumar P,Mishra G

更新日期：2017-11-01 00:00:00

abstract：:Ten flavonoid compounds were isolated from the dried leaves of Polygonum hydropiper L. (Laksa leaves), and identified as 3-O-alpha-L-rhamnopyranosyloxy-3',4',5,7-tetrahydroxyflavone; 3-O-beta-D-glucopyranosyloxy-4',5,7-trihydroxyflavone; 6-hydroxyapigenin; 6"-O-(3,4,5-trihydroxybenzoyl) 3-O-beta-D-glucopyranosyloxy-3'...

journal_title：Phytochemistry

authors： Peng ZF,Strack D,Baumert A,Subramaniam R,Goh NK,Chia TF,Tan SN,Chia LS

更新日期：2003-01-01 00:00:00

abstract：:Proteomic analyses of soybean seedlings responding to flooding were conducted to identify key proteins involved. The seeds were germinated on a spongy matrix for two days, and then subjected to flooding for three days. After flooding, the total number of roots, the length of the main root, the lengths of the lateral a...

journal_title：Phytochemistry

authors： Shi F,Yamamoto R,Shimamura S,Hiraga S,Nakayama N,Nakamura T,Yukawa K,Hachinohe M,Matsumoto H,Komatsu S

更新日期：2008-04-01 00:00:00

abstract：:Cyanogenic glucosides are phytoanticipins known to be present in more than 2500 plant species. They are considered to have an important role in plant defense against herbivores due to bitter taste and release of toxic hydrogen cyanide upon tissue disruption. Some specialized herbivores, especially insects, preferentia...

journal_title：Phytochemistry

authors： Zagrobelny M,Bak S,Rasmussen AV,Jørgensen B,Naumann CM,Lindberg Møller B

更新日期：2004-02-01 00:00:00

abstract：:The antimicrobially active EtOH extracts of Maytenus heterophylla yielded a new dihydroagarofuran alkaloid,1beta-acetoxy-9alpha-benzoyloxy-2beta,6alpha-dinicotinoyloxy-beta-dihydroagarofuran, together with the known compounds beta-amyrin, maytenfolic acid, 3alpha-hydroxy-2-oxofriedelane-20alpha-carboxylic acid, lup-20...

journal_title：Phytochemistry

authors： Orabi KY,Al-Qasoumi SI,El-Olemy MM,Mossa JS,Muhammad I

更新日期：2001-10-01 00:00:00