Abstract：
:Two sulfur-containing compounds, (S)-2-amino-5-((R)-1-carboxy-2-((E)-3-(4-hydroxy-3-methoxyphenyl)allylthio)ethyl-amino)-5-oxopentanoic acid (1) and (S)-2-amino-5-((R)-1-(carboxymethylamino)-3-((E)-3-(4-hydroxyphenyl)allylthio)-1-oxopropan-2-ylamino)-5-oxopentanoic acid (2), and one 1H-pyrrole-2-carboxylic acid derivative, 6-(3-(1H-pyrrole-2-carbonyloxy)-2-hydroxypropoxy)-3,4,5-trihydroxy-tetrahydro-2H-pyran-2-carboxylic acid (3), together with eighteen known phenolic compounds, were isolated from the fruits of pineapple. Their structures were elucidated by a combination of spectroscopic analyses. Some of these compounds showed inhibitory activities against tyrosinase. The half maximal inhibitory concentration values of compounds 1, 4, 5, 6, 7 are lower than 1 mM. These compounds may contribute to the well-known anti-browning effect of pineapple juice and be potential skin whitening agents in cosmetic applications.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Zheng ZP,Ma J,Cheng KW,Chao J,Zhu Q,Chang RC,Zhao M,Lin ZX,Wang Mdoi
10.1016/j.phytochem.2010.08.014subject
Has Abstractpub_date
2010-12-01 00:00:00pages
2046-51issue
17-18eissn
0031-9422issn
1873-3700pii
S0031-9422(10)00314-6journal_volume
71pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract：:Stereumins Q-U, together with known stereumins A, B, K, L, and N, as well as ent-strobilols E and G were isolated from the culture of Stereum cf. sanguinolentum BCC 22926. Their structures were elucidated by extensive spectroscopic analyses. The absolute configurations of stereumins A and Q, as well as ent-strobilol E...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2014.06.006
更新日期：2014-09-01 00:00:00
abstract：:Chemical investigation of stems of the mangrove plant, Pongamia pinnata, resulted in isolation and characterization of five structurally unusual flavonoids pongamones A-E, along with 16 known flavonoid metabolites. Their structures were determined on the basis of spectroscopic analyses and by comparison of their spect...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2006.05.016
更新日期：2006-07-01 00:00:00
abstract：:We have reported earlier, an orally active insulin-like protein (ILP) from Costus igneus having potent hypoglycemic property in STZ-induced diabetic Swiss mice. The blood glucose level was reduced significantly within two hours after feeding ILP orally in an oral glucose tolerance test. The present study elucidates th...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2016.02.001
更新日期：2016-04-01 00:00:00
abstract：:Three new glycosides of the oleanene-type triterpenes, rivalosides C-E (1-3), along with three known triterpene saponins, momordin IIb (4) and rivalosides A-B (5-6), and five known iridoid glucosides: monotropein, scandoside, deacetylasperulosidic acid, geniposidic acid and asperulosidic acid, were isolated from aeria...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00149-7
更新日期：2000-08-01 00:00:00
abstract：:Withania somnifera, known in India as Asghawhanda, is used traditionally to treat many medical problems including diabetes and has demonstrated therapeutic activity in various animal models as well as in diabetic patients. While much of W. somnifera's therapeutic activity is attributed to withanolides, their role in t...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2015.02.029
更新日期：2015-08-01 00:00:00
abstract：:Lignin, a complex phenylpropanoid compound, is polymerized from the monolignols p-coumaryl alcohol, coniferyl alcohol and sinapyl alcohol. These three monolignols differ only by the 3- and 5-methoxyl groups. Therefore, enzymatic reactions controlling the methylations of the 3- and 5-hydroxyls of monolignol precursors ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(01)00051-6
更新日期：2001-08-01 00:00:00
abstract：:Six undescribed triterpenoids, schincarins A‒F, categorized as the preschisanartane (schincarin A), 3,4-secocycloartane (schincarins B‒D), 3,4; 9,10-disecocycloartane (schincarin E), and 3,4-secolanostane (schincarin F) classes, along with twelve known analogues, were obtained from the stems and leaves of Schisandra i...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2020.112448
更新日期：2020-09-01 00:00:00
abstract：:The ginseng pathogen Pythium irregulare is able to selectively metabolize the 20(S) protopanaxadiol ginsenosides Rb1, Rb2, Rc, Rd, and gypenoside XVII via extracellular glycosidases, leading to the formation and partial assimilation of ginsenoside F2. Herein we have partially purified three ginsenoside-deglycosylating...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.09.007
更新日期：2009-12-01 00:00:00
abstract：:The brown-rot fungus Gloeophyllum odoratum was collected from spruce stumps in southern Finland. The volatiles in the fruiting body and fungal cultures grown in malt extract and liquid medium were investigated. Chitin, chitosan and D-(+)-glucosamine at a concentration of 450 mgl-1 medium were used as elicitors. Chitos...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)90463-1
更新日期：1994-07-01 00:00:00
abstract：:Four steroidal glycosides, named abutilosides L, M and N, these being 22S,25S-epoxy-furost-5-ene type glycosides, and abutiloside O, a 20-22 seco-type steroidal glycoside, were isolated from the fresh fruits of Solanum abutiloides. Their structures were determined by 2D NMR spectroscopic analysis and chemical evidence...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2003.08.008
更新日期：2003-12-01 00:00:00
abstract：:Caralluma sinaica is sold on local markets of Saudi Arabia for various health benefits however no phytochemical study has specifically been performed on this species. NMR and UHPLC-ESI-TOF-MS profilings of the ethanolic extract of the whole plant reveal a very complex phytochemical composition dominated by pregnanes. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2012.04.003
更新日期：2012-07-01 00:00:00
abstract：:The lipid extract of the temperate red alga Rhodymenia pertusa has yielded four eicosanoid metabolites, three of which are new natural products. Using principally NMR and MS techniques, their structures were deduced as 5R,6S-dihydroxy-7(E),9(E),11(Z),14(Z)-eicosatetraenoic acid (5R,6S-diHETE), 5R*,6S*-dihydroxy-7(E),9...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(99)00445-8
更新日期：2000-01-01 00:00:00
abstract：:Two furanoditerpenoid lactones, were isolated from the seeds of Caesalpinia minax Hance. Their structures and stereochemistry have been established by spectral data and single crystal X-ray analysis. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(01)00134-0
更新日期：2001-06-01 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
pub_type： 杂志文章
doi：10.1016/s0031-9422(03)00325-x
更新日期：2003-08-01 00:00:00
abstract：:Fractionation of an ethanol extract of a Madagascar collection of the leaves and fruit of Cassipourea lanceolata Tul. led to the isolation of three euphane triterpenoids 1-3. The (1)H and (13)C NMR spectra of all compounds were fully assigned using a combination of 2D NMR experiments, including COSY, TOCSY, HSQC (HMQC...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.12.009
更新日期：2010-04-01 00:00:00
abstract：:Four cucurbitacins, bacobitacin A-D (1-4) as well as, a known cytotoxic, cucurbitacin E (5) together with three known phenylethanoid glycosides, monnieraside I, III and plantioside B were isolated form the aerial part of Bacopa monnieri. Their structures were elucidated on the basis of extensive spectroscopic investig...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2007.03.013
更新日期：2007-05-01 00:00:00
abstract：:The accumulation of soluble and wall-bound phenolics and phenolic polymers in Musa acuminata roots exposed to cell wall-derived elicitor from the pathogen, Fusarium oxysporum, f.sp. cubense, race four, was investigated. The root tissue from the banana cultivar "Goldfinger" was found to respond strongly and rapidly tow...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(03)00286-3
更新日期：2003-07-01 00:00:00
abstract：:Radicinin is a phytotoxic and antibiotic metabolite produced by some phytopathogenic fungi. Precursor administration and cell-free experiments with deoxyradicinin and radicinin were carried out in Bipolaris coicis H13-3. When deoxyradicinin was administered to the fungus, radicinin and 3-epi-radicinin formed. When rad...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2011.11.010
更新日期：2012-03-01 00:00:00
abstract：:Fourteen species of the genus Echium (Fam. Boraginaceae) collected in the Macaronesia were surveyed in a search for high levels of gamma-linolenic acid (GLA, 18:3omega6) in the seed oil. High amounts of this fatty acid were found in all of them, ranging from 18.85% (E. pitardii var. pitardii) to 27.42% (E. gentianoide...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(01)00184-4
更新日期：2001-09-01 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
pub_type： 杂志文章
doi：10.1016/j.phytochem.2012.03.005
更新日期：2012-07-01 00:00:00
abstract：:Five undescribed compounds were separated from Abrus mollis leaves, including two truxillate forms (abrusamide D, H) and three truxinate forms (abrusamide E, F, G). The absolute configuration of abrusamide D was determined by X-ray crystallography. Abrusamide A was reassessed and corrected to be β-truxinate configurat...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2020.112572
更新日期：2021-01-01 00:00:00
abstract：:The structure of a diterpenoid, designated salvigresin, that was isolated from the aerial parts of Salvia greggii, has been confirmed by spectroscopic investigation and X-ray analysis. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(03)00216-4
更新日期：2003-08-01 00:00:00
abstract：:Triterpenoid saponins, impatienosides A-G, together with 12 known saponins, were isolated from the whole plants of Impatiens siculifer. Their structures were established on the basis of extensive 1D and 2D NMR and MS analyses coupled with chemical degradation. Cytotoxic activities of the isolated saponins were evaluat...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.03.022
更新日期：2009-04-01 00:00:00
abstract：:Eleven oleanane-type triterpenoid saponins, foegraecumosides A-K, and eight known ones, were isolated from the aerial parts of Lysimachia foenum-graecum. Their structures were elucidated by spectroscopic data analyses and chemical methods. All isolated saponins were evaluated for their cytotoxicity against four human ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2017.01.021
更新日期：2017-04-01 00:00:00
abstract：:A catechol oxidase from lemon balm (Melissa officinalis) moCO which only catalyzes the oxidation of catechols to quinones without hydroxylating tyrosine was purified. The molecular mass of the M. officinalis enzyme of 39,370 Da was obtained by MALDI mass spectrometry and the isoelectric point was determined to be 3.4....
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2012.05.022
更新日期：2012-09-01 00:00:00
abstract：:Injury to plant products by harvest and postharvest operations induces respiration rate and increases the demand for respiratory substrates. Alterations in primary carbon metabolism are likely to support the elevated demand for respiratory substrates, although the nature of these alterations is unknown. To gain insigh...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2010.12.016
更新日期：2011-04-01 00:00:00
abstract：:Three phenolic antioxidant and anti-inflammatory compounds: 7-methylaromadendrin, isoprenylhydroquinone glucoside, and 3.5-dicaffeoylquinic acid methyl ester, all isolated from Western Mediterranean Asteraceae species, have been studied for their inhibitory activity against protein carbonylation, a harmful post-transl...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2011.06.005
更新日期：2011-10-01 00:00:00
abstract：:The incomplete structure proposed in 1972 for a unique "flavone-polysaccharide" compound, MF-1, from the liverwort Monoclea forsteri, has been re-examined. Rather than the proposed 8-methoxyluteolin structure with polysaccharides attached to the 7- and 4'-hydroxyls, MF-1 has been shown to be primarily a mixture of pen...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(03)00199-7
更新日期：2003-07-01 00:00:00
abstract：:Abscisic acid (ABA) has been implicated as a mediator in plant responses to various environmental stresses. To evaluate the transcriptional and metabolic events downstream of ABA perception, Arabidopsis thaliana seedlings were analyzed by transcript and metabolite profiling, and results were integrated, using the rece...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2008.09.020
更新日期：2008-12-01 00:00:00
abstract：:Silene species are known for their use in traditional medicine in treating several diseases. To the authors' knowledge there is no report on the chemical composition of S. odontopetala. Therefore, the phytochemical investigation of the methanol extract of S. odontopetala was carried out, leading to the isolation of si...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2020.112404
更新日期：2020-08-01 00:00:00
