Antibacterial activity of prenylated benzopyrans from Peperomia obtusifolia (Piperaceae).

abstract：:Cumin (Cuminum cyminum) is an annual plant from Apiaceae family that is cultivated in Iran as landraces. The most important chemical composition of the cumin essential oil was cuminaldehyde. In this research, the effect of different landraces and growth regulators was evaluated on callus induction, and best callus was...

journal_title：Natural product research

authors： Farvardin A,Ebrahimi A,Hosseinpour B,Khosrowshahli M

更新日期：2017-09-01 00:00:00

abstract：:Toxicity of the pesticide carbofuran (CF) can be alleviated by curcumin, if not for its poor bioavailability. Hence, we investigated the effect of a bioavailable curcumin-galactomannan complex (CGM) on CF-induced neurotoxicity in rats in comparison to that of unformulated standard curcumin (CS). The CF (5 mg/kg b.wt/d...

journal_title：Natural product research

authors： E R S,P P B,Nair SS,Maliakel B,Kuttan R,I M K

更新日期：2020-05-01 00:00:00

abstract：:One new tirucallane-type nortriterpenoid Nortirucallane A (1), together with Chrysoeriol (2) and Isorhamnetin (3), was isolated from the methylene chloride part of Lonicerae japonicae flos. Their structures were elucidated by the detailed analysis of comprehensive spectroscopic data. Compound 3 was isolated from the g...

journal_title：Natural product research

authors： Wang X,Zhang J,Li YQ,Du BX,Sun QH,Cao YJ,Jiang HQ,Liu YH,Zhou HL,Rong R

更新日期：2017-10-01 00:00:00

abstract：:Sahandinone (1), 12-deoxysalvipisone (2), miltirone (3), 7α-acetoxyroyleanone (4), and labda-7,14-dien-13-ol (5) were isolated from the roots of Salvia rhytidea Benth. (Lamiaceae). Their structures were elucidated by a combination of spectroscopic analyses including EIMS and NMR. The 13C NMR spectroscopic data were re...

journal_title：Natural product research

authors： Jassbi AR,Eghtesadi F,Hazeri N,Ma'sumi H,Valizadeh J,Chandran JN,Schneider B,Baldwin IT

更新日期：2017-02-01 00:00:00

abstract：:SPME analysis of Zingiber officinale Roscoe and Curcuma longa L. were performed by using a DVB/CARB/PDMS fiber. The SPME analysis of Zingiber officinale showed that the main components found were camphene (7.27%), geranial (8.37%), α-zingiberene (14.50%), α-farnesene (9.14%), β-bisabolene (6.52%), and β-sesquiphelland...

journal_title：Natural product research

authors： D'Auria M,Racioppi R

更新日期：2019-07-01 00:00:00

abstract：:A series of unexpected triterpenic C17-[5-methyl-1,3]-oxazoles along with targeted N-propargylamides was synthesized by an interaction of acid chlorides with propargylamine hydrochloride. We proposed that the formation of methyl oxazole passes through an alternative pathway by the participation of the terminal alkyne ...

journal_title：Natural product research

authors： Khusnutdinova EF,Petrova AV,Lobov AN,Kukovinets OS,Baev DS,Kazakova OB

更新日期：2020-03-28 00:00:00

abstract：:Chemical investigation of Dendrobium plicatile Lindl resulted in the isolation and identification of one new bibenzyl, 2-chloro-3, 4'-dihydroxy-3',5-dimethoxybibenzyl (1), as well as 15 known stilbenoids. The structures of this new compound was elucidated by extensive spectroscopic analysis, including HRESIMS, 1H and ...

journal_title：Natural product research

authors： Chen DN,Wang YY,Liu WJ,Chen YJ,Wu YP,Wang JX,He F,Jiang L

更新日期：2020-02-01 00:00:00

abstract：:Two Streptomyces spp. strains responsible for potato common scab infections in Uruguay which do not produce diketopiperazines were identified through whole-genome sequencing, and the virulence factor produced by one of them was isolated and characterized. Phylogenetic analysis showed that both pathogenic strains can b...

journal_title：Natural product research

authors： Lapaz MI,López A,Huguet-Tapia JC,Pérez-Baldassari MF,Iglesias C,Loria R,Moyna G,Pianzzola MJ

更新日期：2019-10-01 00:00:00

abstract：:A new furostanol saponin, (25R)-26-O-(α-d-glucopyranosyl)-(1→2)-α-l-rhamnopyranosyl-furost-5-ene-3β, 22α, 26-triol-3-O-α-d-glucopyranoside (1), together with four known compounds 2-5 were isolated from the ethanolic extract of the stems of Dendrobium chrysanthum Lindl. The structures of these new compounds were identi...

journal_title：Natural product research

authors： Yang C,Lin W,Zhao L,Cai J

更新日期：2019-09-01 00:00:00

abstract：:Three alkaloids, (3-chloro-2-hydroxypropyl) trimethylammonium chloride (1), p-(acetylamino)-phenol (2) and 4,4'-diacetamidodiphenyl ether (3), were isolated from Reineckia carnea herba. Their structures were determined by detailed analysis of their 1D and 2D NMR spectra and MS. Compounds 1 and 3 were new natural produ...

journal_title：Natural product research

authors： Wang J,Han N,Wang Y,Wang Y,Liu Z,Wang Y,Yin J

更新日期：2014-01-01 00:00:00

abstract：:This work reports the phytochemical profile and insecticidal properties of Perovskia artemisioides Boiss essential oil (PAEO) collected in Baluchestan, Iran. Totally, twenty-six substances were identified with 1,8-cineole (25.81%), geranyl acetate (13.00%) and linalool (10.21%) as dominant chemical metabolites by GC-M...

journal_title：Natural product research

authors： Sadeghi Z,Alizadeh Z,Khorrami F,Norouzi S,Moridi Farimani M

更新日期：2020-08-26 00:00:00

abstract：:In a previous study, we evaluated the maternal and fetal safety of antimalarial herb Artemisia annua with artemisinin yield of 1.09%. Here, we attempted to ascertain the contraceptive claim of A. annua. Sexually matured female Wistar rats (180-220 g) were allotted into four study groups of six rats each. The control g...

journal_title：Natural product research

authors： Abolaji AO,Eteng MU,Ebong PE,Dar A,Farombi EO,Choudhary MI

更新日期：2014-01-01 00:00:00

abstract：:The microbial transformation studies of 7-O-prenylquercetin (1), 4'-O-prenylquercetin (2) and quercetin (3) were investigated with 20 different microbial strains to discover new metabolites. It was revealed that the fungus Mucor hiemalis was the most appropriate micro-organism which was capable of transforming these f...

journal_title：Natural product research

authors： Xiao Y,Lee IS

更新日期：2018-04-01 00:00:00

abstract：:Pseudomonas syringae pv. actinidiae (PSA) is the causal agent of bacterial canker of kiwifruit. It is very difficult to treat pandemic disease. The prolonged treatment with antibiotics, has resulted in failure and resistance and alternatives to conventional antimicrobial therapy are needed. The aim of our study was to...

journal_title：Natural product research

authors： Vavala E,Passariello C,Pepi F,Colone M,Garzoli S,Ragno R,Pirolli A,Stringaro A,Angiolella L

更新日期：2016-01-01 00:00:00

abstract：:The serotonin (5-hydroxytryptamine) type 3 receptor is an important target in the control of digestive dysfunction such as anorexia and bulimia, and 5-HT3 receptor antagonists are effective against eating disorder and the early-phase chemotherapy and radiotherapy evoked vomiting. Our previous research of Valeriana jat...

journal_title：Natural product research

authors： Wang LX,Chen HL,Yan HL,Tang F,Zhang H,Li HX,Ye Q,Peng C,Tan YZ

更新日期：2019-09-10 00:00:00

abstract：:A total of nine oilseeds with more than 15 wt% oil have been investigated for evaluating them as feedstock for biodiesel industries. Fatty acid profiles of all the nine oil samples have been determined by GC-MS analysis. The saponification numbers, gross heats of combustion of the oils and those of corresponding fatty...

journal_title：Natural product research

authors： Barua P,Dutta K,Basumatary S,Deka DC,Deka DC

更新日期：2014-01-01 00:00:00

abstract：:A new furanodihydrobenzoxanthone, artomandin (1), together with three other flavonoid derivatives, artoindonesianin C, artonol B, and artochamin A, as well as β-sitosterol were isolated from the stem bark of Artocarpus kemando. The structures of these compounds were determined on the basis of spectral evidence. All of...

journal_title：Natural product research

authors： Ee GC,Teo SH,Rahmani M,Lim CK,Lim YM,Go R

更新日期：2011-06-01 00:00:00

abstract：:The hexane and ethanol extracts from Himatanthus bracteatus (Apocynaceae) stems were evaluated for antiviral activity against Zika virus, yellow fever virus and dengue virus 2 and for cytotoxicity in Vero cells by MTT assay. The ethanol extract showed good antiviral activity against the three viruses with selective in...

journal_title：Natural product research

authors： da Silva ML,Stehmann JR,Serafim MSM,Vale VV,Gontijo DC,Brandão GC,Kroon EG,de Oliveira AB

更新日期：2019-11-20 00:00:00

abstract：:Crambe orientalis L. (Brassicaceae), a perennial herb, is indigenous to Iran. The essential oils of flowering tops and leaves of the plant were evaluated by GC-MS. Our results showed that while 2-methyl-5-hexenitrile (19.5%) and benzyl cyanide (16.9%) were the major components of flowering tops oil, the oil of the lea...

journal_title：Natural product research

authors： Razavi SM,Nejad-Ebrahimi S

更新日期：2009-01-01 00:00:00

abstract：:A phytochemical reinvestigation of the whole plant of Euphorbia segetalis yielded five tetracyclic triterpenes: 3beta-hydroxy-cycloart-25-en-24-one (1), cycloart-25-ene-3beta,24-diol (2), cycloart-23-ene-3beta,25-diol (3), lanosta-7,9(11),24-trien-3beta-ol (4) and lanosta-7,9(11),24(31)-trien-3beta-ol (5). beta-acetox...

journal_title：Natural product research

authors： Madureira AM,Ascenso JR,Valdeira L,Duarte A,Frade JP,Freitas G,Ferreira MJ

更新日期：2003-10-01 00:00:00

abstract：:In this study, the effects of Benzoinum and Styrax on Escherichia coli (E. coli) growth were investigated by microcalorimetry. Using a TAM Air Isothermal Calorimeter, ampoule method, the power-time curves of E. coli growth at 37°C affected by Benzoinum and Styrax were measured. By analysing some quantitative thermokin...

journal_title：Natural product research

authors： Wang J,Cheng D,Zeng N,Xia H,Fu Y,Yan D,Zhao Y,Xiao X

更新日期：2011-02-01 00:00:00

abstract：:Eight known abietane diterpenes (1-8) were isolated for the first time from Abies numidica cones (Pinaceae). The structures of all compounds were established by means of 1D and 2D NMR, and UV spectral analyses. The hydromethanolic extract of A. numidica cones was tested for its antimicrobial activity against 17 gram-p...

journal_title：Natural product research

authors： Belhadj Mostefa M,Abedini A,Voutquenne-Nazabadioko L,Gangloff SC,Kabouche A,Kabouche Z

更新日期：2017-03-01 00:00:00

abstract：:A new sesquiterpenoid, malayscaphiol (1), and three known compounds, lupeol (2), lupenone (3) and stigmasterol (4), were isolated from the methanolic extract of the stem bark of Scaphium macropodum. The structures of the isolated compounds were determined using several spectroscopic methods, including UV-vis, FT-IR, 1...

journal_title：Natural product research

authors： Al Muqarrabun LM,Ahmat N,Aris SR,Shamsulrijal N,Baharum SN,Ahmad R,Rosandy AR,Suratman MN,Takayama H

更新日期：2014-01-01 00:00:00

abstract：:Cinobufagin was one of the important cardenolidal steroids and a major component of Chan'Su, a famous traditional Chinese medicine. The urinary metabolites of cinobufagin after single oral doses of 25 mg kg⁻¹ in rats were investigated. Eleven metabolites were isolated and purified by liquid-liquid extraction, open-col...

journal_title：Natural product research

authors： He X,Hu H,Wu Y,Zeng X

更新日期：2012-01-01 00:00:00

abstract：:Formulations of traditional medicines are usually made up of a complex mixture of herbs. However, effective quality control methods in order to select materials of the right quality are lacking. 'Amukkara choornam' is a polyherbal Siddha formulation used for gastritis, spleen enlargement, leucorrhoea, hiccups, anaemia...

journal_title：Natural product research

authors： Patra KC,Singh B,Pareta S,Kumar KJ

更新日期：2010-12-01 00:00:00

abstract：:Using a bioactivity-guided fractionation procedure, five cembranolides, 11-epi-sinulariolide acetate (1), 11-dehydrosinulariolide (2), sinulariolide (3), dihydrosinularin (4), and 3,4:8,11-bisepoxy-7-acetoxycembra-15(17)-en-1,12-olide (5), along with two nucleosides, 2'-deoxyadenosine and thymidine, were isolated from...

journal_title：Natural product research

authors： Hsieh PW,Chang FR,McPhail AT,Lee KH,Wu YC

更新日期：2003-12-01 00:00:00

abstract：:A series of novel hydrocarbylidene nitrohydrazinecarboximidamides were designed and synthesized using an insecticidal natural product Galegine as a lead compound. The bioassay results show that the target compounds exhibited moderate to good insecticidal activities against Hyalopterus pruni Geoffroy at a concentration...

journal_title：Natural product research

authors： Wu Q,Zhao F,Zhu X,Zhou Z,Yang D,Xu Z,Li J,Qin Z

更新日期：2019-08-20 00:00:00

abstract：:The ethanol extract of the Ficus carica L. leaves was tested to show strong nematicidal activity against pine wood nematode (PWN), Bursaphelenchus xylophilus, causing 90.93% corrected mortality within 72 h at 1.0 mg/mL. From the ethyl acetate soluble fraction of the F. carica L. leaves extract, the main nematicidal co...

journal_title：Natural product research

authors： Guo Q,Du G,He H,Xu H,Guo D,Li R

更新日期：2016-09-01 00:00:00

abstract：:This work is an attempt to explore the anti-spermatogenic activity of Pistia stratiotes and to investigate it as a male contraceptive. The prepared extracts were screened for the presence of alkaloids, glycosides, steroids, flavonoids, saponin and phenolic compounds. To assess the anti-spermatogenic activity, mice wer...

journal_title：Natural product research

authors： Singh K,Dubey BK,Tripathi AC,Singh AP,Saraf SK

更新日期：2014-01-01 00:00:00

abstract：:One new triterpenoid olean-18-ene-1β, 2α, 3β-triol (1) along with four known compounds were isolated from the chloroform extract of the aerial part of Salvia atropatana Bunge. The known compounds were two flavonoids, 5-hydroxy-7,4'-dimethoxyflavone (2) and 5-hydroxy-6,7,4'-trimethoxyflavone (3), an abietane-type diter...

journal_title：Natural product research

authors： Habibi Z,Cheraghi Z,Ghasemi S,Yousefi M

更新日期：2012-01-01 00:00:00