In vitro bioactive analysis and antioxidant activity of two species of seaweeds from the Gulf of Mannar.

abstract：:A new benzophenone huanglongmycin (HLM) D (1) and two new monomeric xanthones huanglongmycin E (2) and F (3), together with four known aromatic polyketides aloesaponarin II (4) and the previously isolated huanglongmycin A-C (5-7) were obtained from cave-derived Streptomyces sp. CB09001. The structures of 1-3 were esta...

journal_title：Natural product research

authors： Jiang L,Xiang J,Zhu S,Tang D,Gong B,Pu H,Duan Y,Huang Y

更新日期：2020-09-01 00:00:00

abstract：:Marsdenia tinctoria is an indigo producing plant commonly found in Borneo, Malaysia. In this present study, one new flavone kapitone (1) and three known compounds, that is 3,2'-dihydroxyflavone (2), 1-methylcyclobutene (3) and dimethyl isatoate (4) were isolated from the Malaysia Borneo M. tinctoria R. Br. (Apocynacea...

journal_title：Natural product research

authors： Mohd Nasuha NA,Choo YM

更新日期：2016-07-01 00:00:00

abstract：:The use of a matrix solid-phase dispersion (MSPD) process to extract polyphenols from hawthorn (Crataegus oxyacantha L.) a deciduous shrub with an expected rich phytochemical profile, has been evaluated. MSPD extracts of fruits and leaves have an outstanding content of polyphenols, although the particular phenolic pro...

journal_title：Natural product research

authors： Benabderrahmane W,Lores M,Lamas JP,Benayache S

更新日期：2018-05-01 00:00:00

abstract：:This study aimed at evaluating the impact of environmental factors on the accumulation of various components in Hedera helix L. folium collected from different European countries. The obtained results of studied samples showed that the antioxidant capacities were in the range of 0.027 to 0.688 mg/g. Contents of active...

journal_title：Natural product research

authors： Bezruk I,Materiienko A,Gubar S,Proskurina K,Budanova L,Ivanauskas L,Georgiyants V

更新日期：2020-11-04 00:00:00

abstract：:Among phenolic compounds, Agave americana L. extract contained puerarin (38.4%) and p-coumaric acid (12.29%) (pCa). From the Lineweaver-Burk plots, pCa and puerarin demonstrated a competitive and a non competitive inhibitions towards human α-amylase activity, respectively. PCa exhibited a higher human inhibitory activ...

journal_title：Natural product research

authors： Sahnoun M,Bejar S,Daoud L,Ayadi L,Brini F,Saibi W

更新日期：2019-03-01 00:00:00

abstract：:As part of continuing our research on diverse C-7 derivatives of camptothecin (CPT), 16 CPT derivatives bearing piperazinyl-thiourea chemical scaffold and different substituent groups have been designed, synthesized and evaluated in vitro for cytotoxicity against five tumor cell lines (A-549, MDA-MB-231, MCF-7, KB and...

journal_title：Natural product research

authors： Song ZL,Yang GZ,Li JC,Liu YQ,Yang CJ,Goto M,Zhang ZJ,Morris-Natschke SL,Liu H,Lee KH

更新日期：2020-07-01 00:00:00

abstract：:A total of 205 bluefin and yellowfin tuna samples were examined for mercury detection in order to verify possible differences and have a detailed risk assessment of the two tuna species. The results showed significant higher mercury concentration in muscle tissue of bluefin tuna respect yellowfin tuna (p < 0.001) with...

journal_title：Natural product research

authors： Cammilleri G,Vazzana M,Arizza V,Giunta F,Vella A,Lo Dico G,Giaccone V,Giofrè SV,Giangrosso G,Cicero N,Ferrantelli V

更新日期：2018-02-01 00:00:00

abstract：:Chronic administration of myricetin (100 and 300 mg kg⁻¹, p.o., for 4 weeks) isolated from Vitis vinifera (Vitaceae) ameliorated hypertension and oxidative stress induced by deoxycorticosterone acetate (DOCA)-salt in rats. Myricetin treatment reduced systolic blood pressure, vascular reactivity changes and reversed th...

journal_title：Natural product research

authors： Borde P,Mohan M,Kasture S

更新日期：2011-09-01 00:00:00

abstract：:The chemical composition of the essential oil (EO) obtained from the aerial parts of Rydingia michauxii (Briq.) Scheen & V.A. Albert was analysed by gas chromatography and gas chromatography/mass spectrometry (GC/MS). Eighty components were identified in the oil with caryophyllene oxide (20.1%), trans-verbenol (10.2%)...

journal_title：Natural product research

authors： Karami A,Esmaeili H,Shahbazian D

更新日期：2018-01-01 00:00:00

abstract：:Naringin, as a component universal existing in the peel of some fruits or medicinal plants, was usually selected as the material to synthesise bioactive derivates since it was easy to gain with low cost. In present investigation, eight new acacetin-7-O-methyl ether Mannich base derivatives (1-8) were synthesised from ...

journal_title：Natural product research

authors： Liu HR,Men X,Gao XH,Liu LB,Fan HQ,Xia XH,Wang QA

更新日期：2018-03-01 00:00:00

abstract：:A new denudatine-type C20-diterpenoid alkaloid, pubesine (1), along with seven known diterpenoid alkaloids, altaconitine (2), 14-benzoylaconine (3), spicatine A (4), 14-benzoylaconine-8-palmitate (5), 14-O-acetylsenbusine A (6), senbusine A (7) and 14-acetylneoline (8) were isolated from the whole plant of Aconitum so...

journal_title：Natural product research

authors： Chen L,Shan L,Xu W,Zhang J,Huang S,Zhou X

更新日期：2017-03-01 00:00:00

abstract：:Two new flavanone glycosides have been isolated from the water soluble part of Veratrum nigrum L., belonging to the family Lilica. The structures of 3',4'-dimethoxyl-quercitrin and 4'-methoxyl-glucotricin have been established with the aid of extensive NMR spectroscopic studies. ...

journal_title：Natural product research

authors： Li HL,Tang J,Liu RH,Zhang C,Zhang WD

更新日期：2009-01-01 00:00:00

abstract：:In this study, the batch removal of copper(II) ions from an aqueous solution and wastewater using marine brown alga Sargassum sp. was investigated. Activated carbon prepared from Sargassum sp. by acid decomposition was also used for the removal of copper from the aqueous solution and wastewater. Activated carbon-prepa...

journal_title：Natural product research

authors： Esmaeili A,Ghasemi S,Sohrabipour J

更新日期：2010-03-01 00:00:00

abstract：:Glaucocalyxin A is a natural ent-Kaurane diterpenoid. It has been widely studied for some important biological activities like cytotoxicity and anti-tumour, anti-bacterial, anti-oxidative, anti-coagulative, anti-thrombotic, immune and anti-neuroinflammatory activities. The aim of the present article is to review the a...

journal_title：Natural product research

authors： Xiang Z,Wu X,Liu X,Jin Y

更新日期：2014-01-01 00:00:00

abstract：:A novel isoindole alkaloid named oleraisoindole (1), together with six known compounds, 7'-ethoxy-trans-feruloyltyramine (2), N-trans-feruloyltyramine (3), N-trans-feruloyl-3-methoxytyramine (4), N-trans-p-coumaroyltyramine (5) aurantiamide (6) and ferulic acid methyl ester (7) were isolated from Portulaca oleracea L....

journal_title：Natural product research

authors： Jiang M,Zhang W,Yang X,Xiu F,Xu H,Ying X,Stien D

更新日期：2018-10-01 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：:One new briarane-type diterpenoid, dichotellide V (1), along with four known analogues, gemmacolide N (2), dichotellide J (3), junceelin A (4) and junceellolide A (5), was isolated from the South China Sea gorgonian Dichotella gemmacea. All of the isolated compounds (1-5) were established by comprehensive analysis of ...

journal_title：Natural product research

authors： Sun JF,Yang B,Zhou XF,Yang XW,Wang L,Liu Y

更新日期：2015-01-01 00:00:00

abstract：:New sesquiterpene glycoside, cyclodipeptide and piperidine derivative were isolated from Streptomyces sp. YIM 63342. On the basis of spectral data, their structures were determined as 3R, 5R, 6S, 7E, 9R-megastigman-7-en-3,5,6,9-tetrol-9-O-β-D-apiofuranosyl-(1→ 2)-β-D-glucopyranoside (1), cyclo (L-Pro-L-OMet) (2) and (...

journal_title：Natural product research

authors： Yang XQ,Yang YB,Zhou H,He GW,Zhao LX,Xu LH,Ding ZT

更新日期：2013-01-01 00:00:00

abstract：:A new phthalide derivative, xylarphthalide A (1), along with two known compounds (-)-5-carboxylmellein (2) and (-)-5-methylmellein (3), were isolated from the endophytic fungus Xylaria sp. GDG-102 cultured from the Chinese medicinal plant Sophora tonkinensis. Their structures were identified by MS and NMR experiments,...

journal_title：Natural product research

authors： Zheng N,Yao F,Liang X,Liu Q,Xu W,Liang Y,Liu X,Li J,Yang R

更新日期：2018-04-01 00:00:00

abstract：:In this study, phytochemical composition, antioxidant, enzyme inhibition and cytotoxic activities of methanol and dichloromethane (DCM) extracts of Bougainvillea glabra (B. glabra) flowers were investigated. Methanol extract was found to have higher total bioactive contents and UHPLC-MS analysis of methanol extract re...

journal_title：Natural product research

authors： Saleem H,Htar TT,Naidu R,Zengin G,Ahmad I,Ahemad N

更新日期：2020-09-01 00:00:00

abstract：:A facile, atom-economic synthesis of isoxazilidino withaferin, a novel hybrid of withaferin A, has been accomplished via two-step reaction of nitrone synthesis followed by nitrone 1,3-dipolar cycloaddition. The reaction is highly chemoselective (preferential reaction only on one of the two double bonds present on with...

journal_title：Natural product research

authors： Mandal R,Singh M,Krishnan AAV,Dahat YH,Bharitkar YP,Ravichandiran V,Hazra A

更新日期：2020-08-01 00:00:00

abstract：:One new 14-membered ring cyclopeptide alkaloid, plenane A (1), along with six known compounds (2-7), was isolated from the roots of Clematis florida. Their structures were elucidated by means of NMR spectroscopic analysis and mass spectrometry. In addition, their anti- inflammatory effects on lipopolysaccharide-induce...

journal_title：Natural product research

authors： Wu Y,Zhang YF,Zhang HT,Ma XH,Yang NN,Feng SB,Zhong TH,Zhang YH

更新日期：2020-08-18 00:00:00

abstract：:In this study, the efficiency of nanoporous aluminium wires as fibres for headspace solid-phase microextraction (HS-SPME) of volatile compounds from Lippia citriodora was investigated and compared with two anodised methods. The prepared fibres are durable with very good chemical and thermal stability which can be coup...

journal_title：Natural product research

authors： Nemati Kharajuo M,Piryaei M,Babashpour Asl M,Abolghasemi MM

更新日期：2017-02-01 00:00:00

abstract：:From the leaves of Mallotus apelta two new benzopyran compounds (1,2) were obtained and their structures were determined using spectroscopic methods. ...

journal_title：Natural product research

authors： An TY,Hu LH,Cheng XF,Chen ZL

更新日期：2003-10-01 00:00:00

abstract：:Phytochemical investigation of the methylenechloride/methanol extract of the aerial parts of Stachys aegyptiaca afforded a new neoclerodane-type diterpene with a new side chain 1, in addition to two known diterpenes 2 and 3 and a known flavonoid glycoside 4. The structures of the compounds were determined by comprehen...

journal_title：Natural product research

authors： Mohamed Ael-H,Mohamed NS

更新日期：2014-01-01 00:00:00

abstract：:Two new benzoic acid derivatives, named methyl(S)-3-hydroxy-4-(2- hydroxy -6-methylheptan-2-yl)benzoate (1) and 2-hydroxy-3-(6- hydroxy-6-methylhept-1-en-2-yl)benzoic acid (2), were isolated from the ethanol extract of an endophytic fungus Aspergillus versicolor derived from the medicinal plant Euphorbia royleana. The...

journal_title：Natural product research

authors： Ye Y,Chen Y,Hou Y,Yu H,Zhu L,Sun Y,Zhou M,Chen Y,Dong M

更新日期：2020-06-11 00:00:00

abstract：:A new alkynol, platycodynol (1), identified as 2, 3, 9, 13, 14-pentahydroxy-4, 6-tetradecadiyne, along with six known compounds (2-7) were obtained from Platycodins folium for the first time. Their structures were elucidated with infrared (IR), ultraviolet (UV), 1D and 2D nuclear magnetic resonance (NMR) spectroscopic...

journal_title：Natural product research

authors： Wang C,Dong Q,Wu F,Li Z,Li P,Liu J,Wang F

更新日期：2020-01-17 00:00:00

abstract：:The aim of study was to compare the content of phenolic acids and flavonoids in two cultivars of Lavandula angustifolia: 'Blue River' and 'Ellagance Purple', including flowers and leafy stalks. Total phenolics and total flavonoids contents were determined by UV-Vis spectroscopy. The contents of total phenolics in leaf...

journal_title：Natural product research

authors： Adaszyńska-Skwirzyńska M,Dzięcioł M

更新日期：2017-11-01 00:00:00

abstract：:In this study, a methanolic extract of Betula pendula leaves (BLE) was investigated for its gastroprotective effects against 90% ethanol-induced ulcer in rats. Oral pretreatment of rats with BLE (100, 200 and 400 mg kg(- 1)) significantly reduced the incidence of gastric lesions induced by ethanol administration as co...

journal_title：Natural product research

authors： Germanò MP,Cacciola F,Donato P,Dugo P,Certo G,D'Angelo V,Mondello L,Rapisarda A

更新日期：2013-01-01 00:00:00

abstract：:This article presents the very first phytochemical investigation on new species Tripleurospermum insularum Inceer & Hayırlıoglu-Ayaz. The volatile profile of odorous parts of the plant was analysed by GC/MS, and compounds were identified in headspace and essential oil obtained from aerial parts, representing 70.81% an...

journal_title：Natural product research

authors： Ćavar Zeljković S,Ayaz FA,Inceer H,Hayirlioglu-Ayaz S,Colak N

更新日期：2015-02-01 00:00:00