scholarly journals Characterization of Flavonoid Glycosides from Fenugreek (Trigonella foenum-graecum) Crude Seeds by HPLC–DAD–ESI/MS Analysis

2014 ◽  
Vol 15 (11) ◽  
pp. 20668-20685 ◽  
Author(s):  
Zakia Benayad ◽  
Carmen Gómez-Cordovés ◽  
Nour Es-Safi
Keyword(s):  
Flavonoid Glycosides ◽  
Esi Ms ◽  
Trigonella Foenum Graecum ◽  
Ms Analysis

Characterization of anthocyanins in the hybrid progenies derived from Iris dichotoma and I. domestica by HPLC-DAD-ESI/MS analysis

2018 ◽  
Vol 150 ◽  
pp. 60-74 ◽  
Author(s):  
Wenji Xu ◽  
Gangjun Luo ◽  
Fengyang Yu ◽  
Qingxiang Jia ◽  
Yang Zheng ◽  
...  
Keyword(s):  
Esi Ms ◽  
Ms Analysis

HPLC-ESI-MS Characterization of Certain Polyphenolic Compounds of Carica papaya L. Fruit Extracts and Evaluation of Their Potential Against Murine Schistosomiasis mansoni

Drug Research ◽  
2018 ◽  
Vol 68 (09) ◽  
pp. 521-528 ◽  
Author(s):  
Ezzat Abdel-Lateef ◽  
Ibrahim Rabia ◽  
Mortada El-Sayed ◽  
El-Sayed Abdel-Hameed
Keyword(s):  
Worm Burden ◽  
Carica Papaya ◽  
Methanolic Extract ◽  
Polyphenolic Compounds ◽  
Infected Group ◽  
Esi Ms ◽  
Methanolic Extracts ◽  
Ms Analysis

AbstractThe in vivo antischistosomal activities of Carica papaya L. extracts were evaluated and the characterization of the active secondary metabolites of the defatted methanolic extract was performed using HPLC-ESI-MS. The plant fruit powders were extracted with 85% methanol and fractionated using organic solvents. The in vivo antischistosomal effects of the methanolic extracts and its fractions, as well as the assessment of the relationship between the antischistosomal activity of these plant extracts and oxidative stress, was determined. In addition, the defatted methanolic extract was characterized by HPLC-ESI-MS analysis. The number of worms, ova, and the Oogram pattern displayed typical Schistosoma mansoni pathology 8 weeks after infection in mice. Treatment of the infected group with the defatted methanolic extracts significantly decreased worm burden, immature ova and mature ova, while increasing the percentage of dead ova in vivo. The butanol fraction was the most effective fraction reducing worm burden by 77%, ova count in the intestine by 76% and in the liver by 80%, and significantly decreased immature and mature ova (P<0.001) compared to the infected group. Additionally, the defatted methanolic extracts improved the reduced glutathione and malondialdehyde levels in hepatic tissues in the treated groups compared to the infected group. The HPLC-ESI-MS analysis of the Carica papaya defatted methanolic extract revealed the presence of several polyphenolic compounds. Carica papaya fruit extracts are rich with phenolic acids and flavonoids and show a significant effect against S. mansoni infections which may be used alternative to PZQ as anti-schistosomal drug against schistosomiasis.

Identification of Flavonoid Glycosides of Methanol Extract from Cucumis dipsaceus Ehrenb. (Fruit) by using HPLC-UV-ESI-MS Methods

2017 ◽  
Vol 8 (04) ◽  
Author(s):  
Suman Lata ◽  
Sanjiv Kumar Mittal
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Electrospray Ionization ◽  
Methanol Extract ◽  
Flavonoid Glycosides ◽  
Ionization Mass ◽  
Methyl Derivative ◽  
Esi Ms ◽  
Tof Ms

The present work is to identify the Chemical Composition of methanolic extract from Cucumis dipsaceus Ehrenb. (Fruit) by using HPLC-UV-ESI-MS Methods. It is very proficient method with amalgamation of liquid chromatography attached to electrospray ionization mass spectrometry in tendem means with positive and negative ion recognition. This is a simple and rapid method for characterization of flavonoid glycosides by using Reversed Phase High Performance Liquid Chromatography coupled to Electrospray Ionization Quadropole Time – of – Flight Mass Spectrometry (RP-HPLC-ESI-Q-TOF-MS). The correctness of mass information generated by Q-TOF-MS jointly with the fragmentation blueprint of the complete scan sprint of MS/MS investigation has been a valuable tool to cautiously characterization of 12 flavonoid glycosides (Molecular weight: 497.04 (RT:3.586), 475.06 (RT:6.801), 393.48 (RT:12.594), 336.50 (RT:16.473), 723.00 (RT:17.774), 452.52(RT:18.253), 978.95 (RT: 25.665), 836.20 (RT: 26.889), 893.00 (RT: 27.925), 838.32 (RT: 31.592), 507.44 (RT: 31.592), 415.18, (RT:33.849) in the methanol extract of this fruit. All these flavonoid glycosides are the first time reported from fruit of Cucumis dipsaceus Ehrenb., and also highlighting the importance of this fruit as a rich source of likely flavonoid glycosides as antioxidants and hepatoprotective agent. It was concluded that these flavonoid glycosides were Myceritin -3-O- β -D-glucopyranoside (497), Apigenin 7 – O – 6’’ – O acetyl – β – D - glucopyranoside (475), 5,6 Dihydroxy 7,8 – dimethoxyapigenin - 6 – O – sulfate (393), 5-p-coumaroylquinic acid (336 or 338), 6’’ -O-(3-hydroxy-3- methylglutaroyl)-2’’ - O - pentosyl-C - hexosyl-luteolin (723), Catechin-3-O-glucoside (452), 3’,4’,5’,5,7 – Methyl derivative of quercetin 3 – O – (2” - feruloylglucosyl)(1->6) – [apiosyl1->2)] glucoside (978.859), Quercetin 3 – O – β – D -(6 – O – sinnapoyl – 2 – O - – O – β – D glucopyranosyl) glucopyranoside (833), Apigenin 7-O-(6''-dihydrogalloyl)-glucosyl-8-C-rhamnosyl-6-C-glucoside (893), precursor or isomer ion of Quercetin 3 – O – β – D -(6 – O – sinnapoyl – 2 – O - – O – β – D glucopyranosyl) glucopyranoside 838.32 , 3’,4’,7 – Methyl derivative of quercetin 3 – O – β – D - glucopyranoside (507) and 415 (Daidzein 7 – O – glucoside).

LC-ESI-MS/MS analysis of Quassia amara leaves tea. Is antiplasmodial activity of the tea is due to quassinoids?

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
N Fabre ◽  
E Deharo ◽  
HL Le ◽  
C Girardi ◽  
A Valentin ◽  
...  
Keyword(s):  
Antiplasmodial Activity ◽  
Esi Ms ◽  
Ms Analysis ◽  
Quassia Amara

Characterization of thirty-nine polymethoxylated flavonoids (PMFs) in the branches of Murraya paniculata by HPLC-DAD-ESI-MS/MS

2014 ◽  
Vol 11 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Jia-Yu ZHANG ◽  
Jian-Qiu LU ◽  
Xiao-Yan GAO ◽  
Qian ZHANG ◽  
Ning LI ◽  
...  
Keyword(s):  
Esi Ms ◽  
Murraya Paniculata

Characterization of Different Types of Biomass Wastes Using Thermogravimetric and ICP-MS Analyses

2020 ◽  
Vol 70 (12) ◽  
pp. 4594-4600
Keyword(s):  
Thermogravimetric Analysis ◽  
Food Industry ◽  
Wood Waste ◽  
Biomass Ash ◽  
Minor Elements ◽  
Ms Analysis ◽  
Icp Ms ◽  
Different Types

The purpose of this study was to characterize some types of biomass wastes resulted from different activities such as: agriculture, forestry and food industry using thermogravimetric and ICP-MS analyses. Also, it was optimized an ICP-MS method for the determination of As, Cd and Pb from biomass ash samples. The ICP-MS analysis revealed that the highest concentration of metals (As, Cd, Pb) was recorded in the wood waste ash sample, also the thermogravimetric analysis indicated that the highest amount of ash was obtained for the same sample (26.82%). The biomass wastes mentioned in this study are alternative recyclable materials, reusable as pellets and briquettes. Keywords: ash, biomass, ICP-MS, minor elements, TG

Sign in / Sign up

Export Citation Format

Share Document