Chemical composition of essential oils from the vegetative and reproductive structures of Copaifera langsdorffii Desf.

abstract：:Plant extracts and products have been used for centuries in traditional medicine; for most of them, in addition to the scant scientific credibility, the chemical composition and spectrum of activity are yet to be explored. To put forward this effort and to identify novel antimicrobial agents, the inhibitory activities...

journal_title：Natural product research

authors： Kumar P,Bhatt RP,Singh L,Sati OP,Khan A,Ahmad A

更新日期：2011-07-01 00:00:00

abstract：:Methylphophorbide a (MPa) has been isolated from the ethanol extract of the wheat grass plant. Its antioxidative efficacy is evaluated by hydroxyl radical scavenging activities and reducing capacity which are significantly up regulated in comparison with aqueous extract of the plant. The compound shows iron-binding ca...

journal_title：Natural product research

authors： Das P,Mandal S,Gangopadhyay S,Das K,Mitra AG,Dasgupta S,Mukhopadhyay S,Mukhopadhyay A

更新日期：2016-01-01 00:00:00

abstract：:Two new compounds including a new 3-arylcoumarin liquiritcoumarin (1), and a new flavonoid glycoside crotoliquiritin (2), together with twelve known compounds (3-14) were isolated from the radix and rhizome of Glycyrrhiza uralensis. Their structures were elucidated on the basis of extensive spectroscopic data analyses...

journal_title：Natural product research

authors： Wang M,Yang W,Liu X,Liu Q,Zheng H,Wang X,Shen T,Wang S,Ren D

更新日期：2020-01-30 00:00:00

abstract：:Essential oils from aerial parts of Senecio nutans, Senecio viridis, Tagetes terniflora and Aloysia gratissima were analysed by GC-MS and their antifungal activities were assayed on toxigenic Fusarium and Aspergillus species. Sabinene (27.6 ± 0.1%), α-phellandrene (15.7 ± 0.3%), o-cymene (9.6 ± 0.2%) and β-pinene (6.1...

journal_title：Natural product research

authors： Galvez CE,Jimenez CM,Gomez ALA,Lizarraga EF,Sampietro DA

更新日期：2020-05-01 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：:Alkaloids and phenolic compounds are among the most biologically active natural products from the Jacobaea/Senecio genera (Asteraceae). To isolate original natural products directly from Jacobaea gigantea crude polar extracts, centrifugal partition chromatography (CPC) was used. Previously, we reported the phytochemic...

journal_title：Natural product research

authors： Mezache N,Derbré S,Laouer H,Richomme P,Séraphin D,Akkal S

更新日期：2019-08-01 00:00:00

abstract：:A new 1,4-phenanthraquinone was isolated from the roots of Menispermum dauricum. The structure was elucidated as 7-hydroxy-3,6-dimethoxy-1,4-phenanthraquinone on the basis of spectral evidence. ...

journal_title：Natural product research

authors： Zhang ZJ,Zhang XQ,Ye WC,Wang Y,Che CT,Zhao SX

更新日期：2004-08-01 00:00:00

abstract：:Momordica charantia (family, Cucurbitaceae), commonly known as karela or bitter melon (Japanese name 'Tsurureishi'), is used as a folk medicine in China, the Indian subcontinent and South America. In Chinese traditional medicine, the plant is usually used as a hypoglycaemic and anti-diabetic agent. The hypoglycaemic a...

journal_title：Natural product research

authors： Han C,Hui Q,Wang Y

更新日期：2008-01-01 00:00:00

abstract：:Chemical investigation of the lichen Parmotrema dilatatum led to the isolation of a new chlorinated compound, named dilatatone (1), along with a known compound, sernanderin (2). Their chemical structures were determined by analysis of their 1 D and 2 D NMR spectra, HRESIMS, and ECD data. Both compounds showed weak α-g...

journal_title：Natural product research

authors： Phan HV,Devi AP,Le HD,Nguyen TT,Nguyen HH,Le TT,Nguyen TH,Sichaem J,Duong TH

更新日期：2020-01-27 00:00:00

abstract：:A new ent-kaurane diterpenoid, lophanthodin G (1) and one known abietanoid, 6alpha-hydroxyferruginol (2), were isolated from the leaves of Isodon lophanthoides var. geradianus. The structure of the new compound 1 was established using spectroscopic methods including extensive 1D and 2D NMR analysis. ...

journal_title：Natural product research

authors： Liu YH,Huang SX,Zhao QS,Ding JK,Goh NK,Sun HD,Chia TF,Tan SN,Chia LS

更新日期：2008-01-01 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：:A simple extraction procedure and HPLC method was developed to analyse the major and minor components of induced phytoalexins of elicited tissues (seeds) of chickpeas (Cicer arietinum L.) and peas (Pisum sativum L.) treated with a biotic elicitor (k-carrageenan) of Hypnea musciformis (red algae) from the Karachi coast...

journal_title：Natural product research

authors： Arman M

更新日期：2011-08-01 00:00:00

abstract：:The search for bioactive compounds against diseases is imperative and the richness of the Amazon provides a large source to be explored. Current therapies for the treatment of parasitic infections have severe side effects and low efficacy, which makes the development of an effective chemotherapy extremely important. I...

journal_title：Natural product research

authors： Fernandes NS,Desoti VC,Dias A,da Silva YC,de Azevedo Dos Santos AP,Passarini GM,Nakamura CV,da Veiga Junior VF

更新日期：2020-01-25 00:00:00

abstract：:Study of the chemical constituents of ethanol extract from the aerial parts of Atalantia buxifolia led to the identification of a new acridone alkaloid named as buxifoliadine (1), along with known compounds citrusinine--I (2), N-methylatalaphylline (3), Severinolid (4) and cycloseverinolide (5). Structural elucidation...

journal_title：Natural product research

authors： Shan F,Yin YQ,Huang F,Huang YC,Guo LB,Wu YF

更新日期：2013-01-01 00:00:00

abstract：:The oral squamous cell carcinoma (OSCC) is the eighth more common cancer in men. The development of new and more efficient drugs is needed. Plants of the genus Piper are popularly used in the treatment of many diseases. This study evaluated the antitumor effect of extract, fraction and isolated compounds from leaves o...

journal_title：Natural product research

authors： Fonseca ACCD,de Queiroz LN,Sales Felisberto J,Jessé Ramos Y,Mesquita Marques A,Wermelinger GF,Pontes B,de Lima Moreira D,Robbs BK

更新日期：2020-10-14 00:00:00

abstract：:The methanolic extract of the aerial parts of Datura innoxia afforded a new withanolide, daturacin, the structure of which was elucidated as (20R, 22S)-21,24-epoxy-1,6-dioxo-14alpha-methoxy-5beta-witha-2,25(27)-dienolide (1) by an analysis of the spectroscopic data, including extensive NMR experiments. ...

journal_title：Natural product research

authors： Siddiqui BS,Arfeen S,Begum S,Sattar FA

更新日期：2005-09-01 00:00:00

abstract：:The Aedes aegypti mosquito is one of the major vectors of arboviruses. These diseases have re-emerged and the insecticides used nowadays are toxic to mammals and environment and have only been effective in the short-term. In this context, natural products are an alternative. The genus Piper has many active compounds a...

journal_title：Natural product research

authors： Macedo AL,Duprat RC,Moreira DL,Kaplan MAC,Vasconcelos TRA,Pinto LC,Montenegro RC,Ratcliffe NA,Mello CB,Valverde AL

更新日期：2018-11-01 00:00:00

abstract：:The chemical constituents identified in the essential oils hydrodistilled from the leaves of Amomum gagnepainii T.L.Wu, K.Larsen and Turland and Amomum repoense Pierre ex Gagnep (Zingiberaceae) of Vietnam origin are reported. The chemical analyses were performed by means of gas chromatography-flame ionisation detector...

journal_title：Natural product research

authors： Huong LT,Hung NV,Chung MV,Dai DN,Ogunwande IA

更新日期：2018-02-01 00:00:00

abstract：:Alkylglycerols (AKGs) are bioactive natural compounds that vary by alkyl chain length and degree of unsaturation, and their absolute configuration is 2S. Three AKGs (5l-5n) were synthesised in enantiomerically pure form, and were characterised for the first time together with 12 other known and naturally occurring AKG...

journal_title：Natural product research

authors： Fernández Montoya DJ,Contreras Jordan LA,Moreno-Murillo B,Silva-Gómez E,Mayorga-Wandurraga H

更新日期：2019-11-04 00:00:00

abstract：:The chemical investigation of the extract of the dried leaves of Rauvolfia caffra (Sond) (synonym Rauvolfia macrophylla) (Apocynaceae) led to isolation of a new glycoside derivative, rauvolfianine (1) as well as six known compounds: oleanolic acid (2), sitosterol-3-O-β-D-glucopyranoside (3), betulinic acid (4), vellos...

journal_title：Natural product research

authors： Ebeh Messanga R,Dominique Serge NB,Abouem A Zintchem A,Norbert MNI,Esther Del Florence MN,Patrick Hervé BD,Maximilienne Ascension N,Alex De Théodore A,Dieudonné Emmanuel P,Christian G B,Koert U

更新日期：2018-08-01 00:00:00

abstract：:Six known metabolites, two new isocoumarins 4 and 8, and one new highly substituted benzoic acid derivative 9 were isolated from the ethyl acetate culture extract of a fungal endophyte, Scytalidium sp. In addition, another new benzoic acid 10 with an unusual 1,2-dicarbonyl side chain was indirectly identified from its...

journal_title：Natural product research

authors： Krohn K,Sohrab MH,Aust HJ,Draeger S,Schulz B

更新日期：2004-06-01 00:00:00

abstract：:Chemical investigation of the resinous exudates of Commiphora myrrha has led to the isolation of four sesquiterpenes (1a/1b, 2, and 3), including one pair of new sesquiterpene enantiomers (1a/1b), one new racemic mixture 2, and two steroids (4 and 5). Their structures were elucidated by spectroscopic analysis, and the...

journal_title：Natural product research

authors： Ge CY,Zhang JL

更新日期：2019-02-01 00:00:00

abstract：:Fruits of different Sorbus L. species have been traditionally used in food production and in the treatment of various ailments. Besides common antioxidant active phytochemicals such as ascorbic acid, tocopherols and carotenoids, fruits are rich in phenolic compounds that are of particular interest. In this study, prof...

journal_title：Natural product research

authors： Raudonis R,Raudonė L,Gaivelytė K,Viškelis P,Janulis V

更新日期：2014-01-01 00:00:00

abstract：:From the fruiting body of ectomycorrhizal fungi Cortinarius xiphidipus, sterols were identified from the crude extract and the cytotoxic effect of ergosta-4, 6, 8(14), 22-tetraen-3-one (ergone) was evaluated. Ten sterols including ergosta-3,5,7,9(11),22-pentaene, (22E)-ergosta-5,7,9(11),22-tetraen-3b-ol, (3β,22E)-ergo...

journal_title：Natural product research

authors： Torres S,Cajas D,Palfner G,Astuya A,Aballay A,Pérez C,Hernández V,Becerra J

更新日期：2017-02-01 00:00:00

abstract：:As part of our search for compounds with cytotoxicity from endophytes of traditional Chinese medicines, two novel nor-sesquiterpenoids (1-2) with a new skeleton containing a tetrahydrofuran moiety were isolated form a rice medium of Fusarium tricinctum, an endophytic fungus isolated from the root of Ligusticum chuanxi...

journal_title：Natural product research

authors： Cao YM,Guo DL,Jin MY,Tan L,Yang TL,Deng F,Gu YC,Li XH,Cao ZX,Deng Y

更新日期：2020-01-24 00:00:00

abstract：:The antibacterial activity of essential oil and methanolic extract of Teucrium polium was determined against Pseudomonas aeruginosa, Pantoea agglomerans, Brenneria nigrifluens, Rhizobium radiobacter, Rhizobium vitis, Streptomyces scabies, Ralstonia solanacearum, Xanthomonas campestris and Pectobacterium cartovorum by ...

journal_title：Natural product research

authors： Purnavab S,Ketabchi S,Rowshan V

更新日期：2015-01-01 00:00:00

abstract：:A new 24-membered macrolide, 5'-epi-SPA-6952A (1), was isolated from the cultured broth of Streptomyces diastatochromogenes. The structure was elucidated by means of spectroscopic methods and comparing with literature data of the known 24-membered macrolide SPA-6952A. Compound 1 was found to show significant insectici...

journal_title：Natural product research

authors： Cao H,Liu W,Chang Y,Chen H,Zhang Y,Xu W,Tao L

更新日期：2019-03-01 00:00:00

abstract：:Phytochemical investigation on the stem bark of Shorea maxwelliana yielded five oligostilbenoids identified as α-viniferin (1), maximol A (2), vaticanol A (3), suffruticosol A (4) and vaticanol G (5). Chemotaxonomy of isolated compounds was discussed briefly. Major compounds were tested for neurotoxic and cytotoxic ac...

journal_title：Natural product research

authors： Zawawi NK,Ahmat N,Mazatulikhma MZ,Shafiq RM,Wahid NH,Sufian AS

更新日期：2013-01-01 00:00:00

abstract：:N-methylasimilobine (1), a new-found strong acetylcholinesterase (AChE) inhibitor, along with two weakly active aporphine alkaloids, nuciferine (2) and nornuciferine (3) were separated from Nelumbo nucifera. N-methylasimilobine (1) inhibited 50% of AChE activity at the concentrations of 1.5 ± 0.2 µg mL(-1) when the st...

journal_title：Natural product research

authors： Yang ZD,Zhang X,Du J,Ma ZJ,Guo F,Li S,Yao XJ

更新日期：2012-01-01 00:00:00

abstract：:The aim of this study was to investigate mercury accumulation in some species, caught in Mediterranean Sea, in the period between May and December 2015, and to compare it to the presence of Anisakis parasites. The samples were examined by direct mercury analyzer (DMA-80) for their Hg levels. The metal concentration wa...

journal_title：Natural product research

authors： Graci S,Collura R,Cammilleri G,Buscemi MD,Giangrosso G,Principato D,Gervasi T,Cicero N,Ferrantelli V

更新日期：2017-05-01 00:00:00