Phenolic and antioxidant profiles of rowan (Sorbus L.) fruits.

abstract：:A sesquiterpenoid quinone, epi-ilimaquinone (1), and two sesquiterpene amino quinones, smenospongine (2) and glycinylilimaquinone (3), were isolated from the Fijian marine sponge Hippospongia sp. The structures of these compounds were determined by spectroscopic analysis. Compounds 1 and 3 were reported for the first ...

journal_title：Natural product research

authors： Kumar R,Subramani R,Aalbersberg W

更新日期：2013-01-01 00:00:00

abstract：:The use of natural products as a diet supplement is increasing worldwide but sometimes is not followed by adequate sanitary controls and analyses. Twenty samples of pills and capsules of lyophilised cyanobacteria (blue-green algae), commercialised in Italy as dietary supplements, were found positive at the Vibrio fisc...

journal_title：Natural product research

authors： Bruno M,Fiori M,Mattei D,Melchiorre S,Messineo V,Volpi F,Bogialli S,Nazzari M

更新日期：2006-07-20 00:00:00

abstract：:A novel aromatic compound, grandiuvarone B (5-acetoxy-3-benzoyloxymethyl-5H-oxepin-4-one), along with a known compound grandiuvarone A (5-acetoxy-6-benzoyloxymethyl-5H-oxepin-4-one) were isolated from methanol extracts of Desmos chinensis leaves. Their structures were determined by various spectroscopic techniques inc...

journal_title：Natural product research

authors： Zhi QQ,Yan QH,Wang Q,Sun PF,Zhou HY,He ZM

更新日期：2020-04-01 00:00:00

abstract：:A new flavonoid, dihydroglychalcone-A, was isolated from the leaves extract of Glycosmis chlorosperma in addition to two known sulphur-containing amides, dambullin and gerambullin. The structure of the new compound was assigned as 2'-hydroxy-4,6'-dimethoxy-3',4'-(2",2"-dimethylpyrano)dihydrochalcone. The extract of th...

journal_title：Natural product research

authors： Rahmani M,Leng KW,Ismail HB,Hin TY,Sukari MA,Ali AM,Kulip J

更新日期：2004-02-01 00:00:00

abstract：:A new flavanone glycoside, (2S)-dihydrooroxylin A 7-O-[β-D-apiosyl(1 → 2)]-β-D-glucoside (1), and four known compounds (2-5) were isolated from Tournefortia sibirica L. The chemical structures of these compounds were determined by 1 D and 2 D NMR and HR-ESI-MS spectra, and r...

journal_title：Natural product research

authors： Diao S,Jin M,Jin CS,Wei CX,Sun J,Zhou W,Li G

更新日期：2019-10-01 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：:Essential oil from Cochlospermum regium (Schrank) Pilg. leaves (CR-EO) has been extracted by hydrodistillation; we analysed the CR-EO by gas chromatography coupled with mass spectrometry. We also conducted histochemical analysis on cross-sections of the central vein of young and adult leaves. A total of 32 compounds w...

journal_title：Natural product research

authors： Inácio MC,Paz TA,Bertoni BW,Vieira MA,Marques MO,Pereira AM

更新日期：2014-01-01 00:00:00

abstract：:This study was aimed at characterising the secondary metabolites responsible for antibacterial and antioxidant activities of Acalypha wilkesiana. Purification of the defatted methanol leaves extract was guided by the DPPH free radical scavenging assay as well as by evaluation of the antibacterial activity against four...

journal_title：Natural product research

authors： Anokwuru CP,Sinisi A,Samie A,Taglialatela-Scafati O

更新日期：2015-01-01 00:00:00

abstract：:The objective of this study was to determine whether endophytic fungi, isolated from Kadsura angustifolia produce nigranoic acid and its highly oxygenated derivatives. From the 426 endophytic fungi screened, Trichoderma harzianum SWUKD3.1610 was detected to have a component with the same TLC R ...

journal_title：Natural product research

authors： Han M,Qin D,Ye T,Yan X,Wang J,Duan X,Dong J

更新日期：2019-07-01 00:00:00

abstract：:A new polyoxygenated briarane-type diterpenoid, briarenol A (1), has been isolated from a gorgonian coral belonging to the genus Briareum. The structure, including the relative stereochemistry of briarane 1, was elucidated by the interpretation of spectral data. The configuration of 1 was further supported by molecula...

journal_title：Natural product research

authors： Sung PJ,Hu WP,Fang LS,Fan TY,Wang JJ

更新日期：2005-10-01 00:00:00

abstract：:A novel monoterpenoid indole alkaloid, melognine (1) possessing an unprecedented skeleton with a 6/6/5/5/6/6 hexatomic rearranged ring system was isolated from the stems of Melodinus fusiformis. The structure with absolute configuration of 1 was established by extensive spectroscopic analyses and quantum ECD calculati...

journal_title：Natural product research

authors： Zhou J,Du SY,Fang ZY,Feng JH

更新日期：2019-11-01 00:00:00

abstract：:Pressafonin A (1) and pressafonin B (2), two new Michelia monoterpenic esters, have been isolated from Michelia compressa (Maxim.) Sargent var. formosana Kanehira (Magnoliaceae), and their structures are determined on the basis of spectroscopic analysis. ...

journal_title：Natural product research

authors： Cheng MJ,Lo WL,Huang JC,Yeh YT,Hong ZL,Lu YC,Chang MS,Chen CY

更新日期：2010-04-01 00:00:00

abstract：:This study evaluated the roles of zeatin (2 mg/L) on direct organogenesis, phytochemical compounds, antioxidant activity, and cytotoxic activity in regenerated shoots of red cabbage. The results revealed that the extract of explant treated by 2 mg/L zeatin gives the highest content of total phenolics (5.18 mg gallic a...

journal_title：Natural product research

authors： Ravanfar SA,Karimi E,Mehrabanjoubani P,Ebrahimi M

更新日期：2020-03-01 00:00:00

abstract：:Designing propolis products for external use involves determining the optimal form of propolis for the introduction into dermatological pharmaceuticals and cosmetic preparations. As a potent ingredient, propolis oil extract from raw material harvested in Lithuania was analysed. The rheological characteristics, content...

journal_title：Natural product research

authors： Ramanauskienė K,Inkėnienė AM

更新日期：2011-09-01 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：:Two new C13-norsesquiterpenes claulanterpene A (1) and B (2), together with two known sesquiterpenes (3-4), were isolated from methanol extract of the stem and leaf of Clausena lansium collected from Qingyuan county, Guangdong Province, China. Their structures were elucidated on the base of extensive spectroscopic ana...

journal_title：Natural product research

authors： Liu XY,Fu XX,Li YY,Xiong ZH,Li BT,Peng WW

更新日期：2020-03-25 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：:A new thiodiketopiperzaine, tedanizaine A (1), together with six known ones, were isolated from the marine sponge Tedania sp. Their structures were determined by spectroscopic analyses. The absolute configuration of 1 was established by ECD calculation. Compound 1 was the second example of thiodiketopiperazine bearing...

journal_title：Natural product research

authors： Zhang H,Lai W,Guan ZB,Liao XJ,Zhao BX,Xu SH

更新日期：2020-04-01 00:00:00

abstract：:The structure of pregnane oligoglycosides, namely rocinine (1) and marsdinine (11), which have been isolated from the chloroform soluble extract of the dried stem of Marsdenia roylei, were elucidated using MS, (1)H NMR, (13)C NMR, (1)H-(1)H COSY, HSQC and TOCSY experiments as well as chemical degradation and derivatis...

journal_title：Natural product research

authors： Gupta V,Kumar A,Khare A,Khare NK

更新日期：2009-01-01 00:00:00

abstract：:The present study was aimed to isolate active constituents from Blumea axillaris (Lam.) DC (Asteraceae) against phytopathogenic fungi. Bioactivity guided fractionation of the successive n-hexane, chloroform and methanol extract led to the isolation of the monoterpene ester (4 R,5S)-4-hydroxy-7-tigloyloxycarvotanaceton...

journal_title：Natural product research

authors： Sivanandhan S,Pathalam G,Antony S,Michael GP,Balakrishna K,Boovaragamurthy A,Shirota O,Alwahibi MS,El-Shikh MS,Ignacimuthu S

更新日期：2020-10-16 00:00:00

abstract：:The purpose of this study is the determination of chemical composition and antioxidant activity of essential oils (EOs) from Saussurea costus (Falc.) Lipsch. Roots have been collected on December of the first plant year (IY) and in April, August and December of the third plant year (I, 6B, D7). A GC analysis was carri...

journal_title：Natural product research

authors： Benedetto C,D'Auria M,Mecca M,Prasad P,Singh P,Singh S,Sinisgalli C,Milella L

更新日期：2019-08-01 00:00:00

abstract：:Two new fatty acid esters of triterpenoids (1-2) together with eleven known compounds (3-13) were obtained after investigation of the CH2Cl2-MeOH (1:1) crude extract from the leaves of Schefflera barteri Harms. All these compounds (1-13) were isolated for the first time from this plant among which compounds 3, 4, 6 an...

journal_title：Natural product research

authors： Mbougnia JFT,Bitchagno GTM,Wouamba SCN,Jouda JB,Awouafack MD,Tene M,Lenta BN,Kouam SF,Tane P,Sewald N

更新日期：2020-11-18 00:00:00

abstract：:Chemical diversity is vital to antitubercular drug discovery as it ensures a novel bioactivity profile. Marine sponges have so far provided more than 1000 new bioactive molecules. Ethyl acetate extract of the marine sponge Dendrilla nigra on bioactivity-guided screening yielded three new compounds denigrins A-C, with ...

journal_title：Natural product research

authors： Murali Krishna Kumar M,Devilal Naik J,Satyavathi K,Ramana H,Raghuveer Varma P,Purna Nagasree K,Smitha D,Venkata Rao D

更新日期：2014-01-01 00:00:00

abstract：:Phytochemical investigation of methanolic extract of Adenium obesum led to the isolation of 42 (1-42) compounds belongs to cardiac glycosides, triterpenoids and steroids. The chemical structures of isolated compounds were elucidated by spectral techniques UV, IR, NMR and FAB MS. The cardiac glycosides were tested agai...

journal_title：Natural product research

authors： Ahmed SK,Versiani MA,Ikram A,Sattar SA,Faizi S

更新日期：2017-05-01 00:00:00

abstract：:Two new briarane-type diterpenoids, dollfusilin A (1) and dollfusilin B (2), along with five known briarane-type diterpenoids (3-7), were isolated from the gorgonian Ellisella dollfusi collected from the South China Sea. The structures of the two new compounds (1 and 2) were elucidated through a comprehensive analysis...

journal_title：Natural product research

authors： Zhou YM,Shao CL,Huang H,Zhang XL,Wang CY

更新日期：2014-01-01 00:00:00

abstract：:Teucrium marum and T. subspinosum have been extracted with different polarity solvents, each crude extract was analysed with (1)H-NMR to compare the overall metabolic component. The polar extracts showed antioxidant activity in vitro. Verbascoside and arabinosyl-verbascoside were isolated and identified. Their concent...

journal_title：Natural product research

authors： Poli F,Serrilli AM,Scartezzini P,Muzzoli M,Maxia A,Ballero M,Serafini M,Bianco A

更新日期：2007-10-01 00:00:00

abstract：:Three new aconitine-type C19-diterpenoid alkaloids, taipeinines A-C (1-3), were isolated from the roots of Aconitum taipaicum. The chemical structures of these three compounds were established as (1α,6α,8α,14α,16α)-20-ethyl-8,14-dihydroxy-1,6,16-trimethoxy-4-(methoxymethyl)-aconitane (1), (1α,6α,8α,14α,16β)-20-ethyl-8...

journal_title：Natural product research

authors： Guo ZJ,Xu Y,Zhang H,Li MY,Xi K

更新日期：2014-01-01 00:00:00

abstract：:Cynomorium coccineum is a non-photosynthetic plant that grows in Mediterranean countries and that is amply used in the traditional medicine. The aim of this study was to extend previous studies on the chemical and biological properties of C. coccineum, evaluating the potential antiviral and antiproliferative activity ...

journal_title：Natural product research

authors： Vascellari S,Zucca P,Perra D,Serra A,Piras A,Rescigno A

更新日期：2019-10-17 00:00:00

abstract：:The aerial parts of Allium eriophyllum Var. eriophyllum (Syn. A. longisepalum Bertol.) were collected at full flowering stage.The essential oil was isolated by hydro distillation and analyzed by a combination of capillary GC and GC-MS. The main components were carvacrol (71.54%), Methyl (methylthio) methyl disulfide (...

journal_title：Natural product research

authors： Mosavi H,Alizadeh A

更新日期：2019-11-01 00:00:00

abstract：:The aim of this study was to explore the extract/fractions and compounds of Diospyros lotus against various Gram-positive and Gram-negative bacteria strain. The results showed marked susceptibility of extract and its fractions against test pathogens. Among them, chloroform fraction was most dominant and effective agai...

journal_title：Natural product research

authors： Rauf A,Uddin G,Khan H,Arfan M,Siddiqui BS

更新日期：2016-01-01 00:00:00