scholarly journals Identification and Quantification of Flavonoids from Chuquiraga spinosa (Asteraceae)

2009 ◽  
Vol 4 (10) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Amaya Landa ◽  
Raquel Casado ◽  
M. Isabel Calvo
Keyword(s):  
Flavonol Glycosides ◽  
Nmr Analysis ◽  
Aerial Parts ◽  
Identification And Quantification

Nine flavonol glycosides (quercetin-3-O-glucuronide, quercetin-3-O-rutinoside, quercetin-3-O-glucoside, kaemperol-3-O-glucuronide, kaemperol-3-O-rutinoside, kaempherol-3-O-glucoside, isorhamnetin-3-O-glucuronide, isorhamnetin-3-O-rutinoside and isorhamnetin-3-O-glucoside) were isolated from the aerial parts of Chuquiraga spinosa (R. et P.) D. Don (Asteraceae). The identification of the compounds was carried out by HPLC/DAD, HPLC/MS and NMR analysis. These compounds may be useful in the chemotaxonomy of the genus and species.

Isolation of new flavonol glycosides from the aerial parts of Lamium amplexicaule

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
A Nugroho ◽  
JK Choi ◽  
JH Park ◽  
BC Cha ◽  
HJ Park
Keyword(s):  
Flavonol Glycosides ◽  
Aerial Parts

scholarly journals Stem Lettuce and Its Metabolites: Does the Variety Make Any Difference?

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 59
Author(s):  
Janusz Malarz ◽  
Klaudia Michalska ◽  
Anna Stojakowska
Keyword(s):  
Chemical Composition ◽  
Plant Material ◽  
Methanolic Extract ◽  
Sesquiterpene Lactones ◽  
Scavenging Activity ◽  
Nmr Analysis ◽  
Caffeic Acid Derivatives ◽  
Aerial Parts ◽  
Dpph Scavenging Activity ◽  
Dpph Scavenging

The objective of the present study was to characterize chemical composition of hitherto unexamined aerial parts of Lactuca sativa var. angustana cv. Grüner Stern. In contrast to leafy and head varieties of the lettuces, asparagus lettuce grown in Europe is much less studied. Fractionation of a methanolic extract from leaves of L. sativa cv. Grüner Stern, supported with HPLC/DAD and 1H NMR analysis, led to the isolation and/or identification of numerous terpenoid and phenolic compounds, including five apocarotenoids—(-)-loliolide, (+)-dehydrovomifoliol, blumenol A, (6S,9S)-vomifoliol, and corchoionoside C; three sesquiterpene lactones; two lignans—((+)-syringaresinol and its 4-O-β-glucoside); five caffeic acid derivatives; and three flavonoids. Some of the compounds, to the best of our knowledge, have never been isolated from L. sativa before. Moreover, monolignols, phenolic acids and a tryptophan-derived alkaloid were found in the analyzed plant material. Stems, leaves and shoot tips of the asparagus lettuce were examined to assess their phenolics and sesquiterpene lactone content as well as DPPH scavenging activity. Another stem lettuce—L. sativa var. angustana cv. Karola, two cultivars of leafy lettuces and one species of wild lettuce—L. serriola, were also examined as a reference material using HPLC/DAD. The results have been discussed regarding our previous studies and the literature data available.

scholarly journals Identification and quantification of phenolic acids and flavonol glycosides in Tunisian Morus species by HPLC-DAD and HPLC–MS

2012 ◽  
Vol 4 (1) ◽  
pp. 367-374 ◽  
Author(s):  
Inès Thabti ◽  
Walid Elfalleh ◽  
Hédia Hannachi ◽  
Ali Ferchichi ◽  
Maria Da Graça Campos
Keyword(s):  
Phenolic Acids ◽  
Flavonol Glycosides ◽  
Identification And Quantification

Three New Flavonol Glycosides from the Aerial Parts of Tetragonia tetragonoides

Heterocycles ◽  
2008 ◽  
Vol 75 (2) ◽  
pp. 419 ◽  
Author(s):  
Kang Ro Lee ◽  
Kyu Ha Lee ◽  
Ki Myun Park ◽  
Kyung Ran Kim ◽  
Jongki Hong ◽  
...  
Keyword(s):  
Flavonol Glycosides ◽  
Aerial Parts

scholarly journals Isolation and Quantification of Pinitol, a Bioactive Cyclitol, in Retama spp

2016 ◽  
Vol 11 (3) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Nuria H. González-Mauraza ◽  
Antonio J. León-González ◽  
José L. Espartero ◽  
Juan B. Gallego-Fernández ◽  
Marina Sánchez-Hidalgo ◽  
...  
Keyword(s):  
Mediterranean Region ◽  
2D Nmr ◽  
Spectroscopic Techniques ◽  
Aqueous Extracts ◽  
Aerial Parts ◽  
The Mediterranean ◽  
Anti Inflammatory ◽  
Identification And Quantification

The genus Retama (Fabaceae) is widely distributed in the Mediterranean region. In the present study, pinitol (3- O-methyl- chiro-inositol), an anti-inflammatory and antidiabetic molecule, was isolated from aerial parts of R. monosperma, and its structure established on the basis of spectroscopic techniques (1D/2D NMR) and MS. Identification and quantification of pinitol in R. raetam and R. sphaerocarpa were also performed. R. monosperma had the highest concentration of pinitol (2.3%). The presence of pinitol in aqueous extracts of Retama spp. may explain the adaptation of these plants to drought and salinity. Furthermore, pinitol could be considered as a mediator in the anti-inflammatory and hypoglycemic activities of Retama spp., which are traditionally used to treat diabetes.

scholarly journals Additional antiprotozoal flavonol glycosides of the aerial parts ofHelianthemum glomeratum

2006 ◽  
Vol 21 (1) ◽  
pp. 78-80 ◽  
Author(s):  
Fernando Calzada ◽  
Alma Delia Alanís
Keyword(s):  
Flavonol Glycosides ◽  
Aerial Parts

scholarly journals Novel Flavonol Glycosides from the Aerial Parts of Lentil (Lens culinaris)

Molecules ◽  
2014 ◽  
Vol 19 (11) ◽  
pp. 18152-18178 ◽  
Author(s):  
Jerzy Żuchowski ◽  
Łukasz Pecio ◽  
Anna Stochmal
Keyword(s):  
Lens Culinaris ◽  
Flavonol Glycosides ◽  
Aerial Parts

Flavonol glycosides from the aerial parts of Gynostemma pentaphyllum and their antioxidant activity

2016 ◽  
Vol 39 (9) ◽  
pp. 1232-1236 ◽  
Author(s):  
Hari Jang ◽  
Jin Woo Lee ◽  
Chul Lee ◽  
Qinghao Jin ◽  
Myung Koo Lee ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Flavonol Glycosides ◽  
Gynostemma Pentaphyllum ◽  
Aerial Parts

scholarly journals Alkaloids from Mongolian species of Peganum multisectum (Maxim) Bobrov

2016 ◽  
Vol 16 ◽  
pp. 48-53 ◽  
Author(s):  
S. Javzan ◽  
D. Selenge ◽  
N. Amartuvshin ◽  
D. Nedelcheva ◽  
V Christov ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
13C Nmr ◽  
Gas Chromatography Mass Spectrometry ◽  
Nmr Analysis ◽  
1H And 13C Nmr ◽  
Aerial Parts ◽  
13C Nmr Analysis ◽  
Pure Compounds ◽  
First Time

Alkaloids of the aerial parts of P. multisectum (Maxim) Bobrov (Zygophyllaceae) growing in Mongolia have been studied by capillary Gas Chromatography-Mass Spectrometry (GC-MS) and Column Chromatography (CC). Four compounds comprising of 2-methylquinoline (1), 9-amino-2, 3,5,6,7,8-hexahydro-1H-cyclopenta [b] quinoline (2), vasicinone (3) and harmine (4) have been determined by GC-MS, while harmine (4), peganine (5), deoxypeganine (6), deoxyvasicinone (7) and harmane (8) were isolated as pure compounds by the CC. The structures of the five alkaloids 4, 5, 6, 7 and 8 were elucidated by the MS and 1H and 13C NMR analysis. The alkaloids 1, 2 and 8 were identified for the first time from this species.Mongolian Journal of Chemistry 16 (42), 2015, 48-53

HPLC–MSn identification and quantification of flavonol glycosides in 28 wild and cultivated berry species

2012 ◽  
Vol 135 (4) ◽  
pp. 2138-2146 ◽  
Author(s):  
Maja Mikulic-Petkovsek ◽  
Ana Slatnar ◽  
Franci Stampar ◽  
Robert Veberic
Keyword(s):  
Flavonol Glycosides ◽  
Identification And Quantification
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