Epiafzelechin from the Root Bark of Cassia sieberiana: Detection by DART Mass Spectrometry, Spectroscopic Characterization, and Antioxidant Properties

2011 ◽  
Vol 74 (3) ◽  
pp. 455-459 ◽  
Author(s):  
Kafui Kpegba ◽  
Amegnona Agbonon ◽  
Ana G. Petrovic ◽  
Etchri Amouzou ◽  
Messanvi Gbeassor ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Antioxidant Properties ◽  
Spectroscopic Characterization ◽  
Root Bark ◽  
Dart Mass Spectrometry

scholarly journals The Flavonoid Compounds from Zanthoxylum leprieurii Guill. et Perr (Rutaceae) Extracts and their Antioxidant Activity against ABTS•+

2020 ◽  
Vol 10 (2-s) ◽  
pp. 120-124
Author(s):  
Yoro TINE ◽  
Alioune DIALLO ◽  
Idrissa NDOYE ◽  
Yin YANG ◽  
Franck RENUCCI ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Antioxidant Activity ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Antioxidant Properties ◽  
Antioxidant Potential ◽  
Root Bark ◽  
Tandem Mass ◽  
Flavonoid Compounds ◽  
First Time

Screening of flavonoid compounds in fruit, leaf, stem and root bark extracts of Z. leprieurii was achieved by liquid chromatography (LC) coupled with tandem mass spectrometry (MS2). Among the 186 reference compounds tested, four flavonoids were identified in one or other of the organ extracts from each plant (fruit, leaf, root barks and stem): neodiosmin and hesperidin were identified in all extracts. The presence of datiscin was reported only in leaves while that of rutin was identified in fruits and leaves. Of these four flavonoids, three (neodiosmin, datiscin and rutin) are detected for the first time in Z. leprieurii. The antioxidant properties of different extracts were tested regarding their scavenging activities on ABTS•+ radical. Fruit, leaf and stem extracts had low antioxidant potential and root bark extracts exhibited very low antioxidant activity. Keywords: Zanthoxylum leprieurii, flavonoids, LC-MS/MS and antioxidant activity.

scholarly journals Mycosporine-Like Amino Acids from Red Macroalgae: UV-Photoprotectors with Potential Cosmeceutical Applications

2021 ◽  
Vol 11 (11) ◽  
pp. 5112
Author(s):  
Julia Vega ◽  
Geniane Schneider ◽  
Bruna R. Moreira ◽  
Carolina Herrera ◽  
José Bonomi-Barufi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Amino Acids ◽  
High Performance ◽  
Nitrogen Availability ◽  
Antioxidant Properties ◽  
Published Data ◽  
Diverse Group ◽  
Red Macroalgae ◽  
Thermo Stability ◽  
The Impact

Macroalgae belong to a diverse group of organisms that could be exploited for biomolecule application. Among the biocompounds found in this group, mycosporine-like amino acids (MAAs) are highlighted mainly due to their photoprotection, antioxidant properties, and high photo and thermo-stability, which are attractive characteristics for the development of cosmeceutical products. Therefore, here we revise published data about MAAs, including their biosynthesis, biomass production, extraction, characterization, identification, purification, and bioactivities. MAAs can be found in many algae species, but the highest concentrations are found in red macroalgae, mainly in the order Bangiales, as Porphyra spp. In addition to the species, the content of MAAs can vary depending on environmental factors, of which solar radiation and nitrogen availability are the most influential. MAAs can confer photoprotection due to their capacity to absorb ultraviolet radiation or reduce the impact of free radicals on cells, among other properties. To extract these compounds, different approaches can be used. The efficiency of these methods can be evaluated with characterization and identification using high performance liquid chromatography (HPLC), associated with other apparatus such as mass spectrometry (MS) and nuclear magnetic resonance (NMR). Therefore, the data presented in this review allow a broad comprehension of MAAs and show perspectives for their inclusion in cosmeceutical products.

Rapid Detection of Vegetable Fat Additives in Condensed Milk by DART Mass Spectrometry

2021 ◽  
Vol 76 (13) ◽  
pp. 1493-1498
Author(s):  
S. V. Goryainov ◽  
C. Esparza ◽  
A. R. Borisova ◽  
K. Fadi ◽  
E. O. Rystsova ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Rapid Detection ◽  
Condensed Milk ◽  
Dart Mass Spectrometry ◽  
Vegetable Fat

scholarly journals LC-MS/MS Analysis of Flavonoid Compounds from Zanthoxylum zanthoxyloides Extracts and Their Antioxidant Activities

2017 ◽  
Vol 12 (12) ◽  
pp. 1934578X1701201
Author(s):  
Yoro Tine ◽  
Yin Yang ◽  
Franck Renucci ◽  
Jean Costa ◽  
Alassane Wélé ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Tandem Mass ◽  
Pharmacological Effects ◽  
Leaf Extracts ◽  
Fruit Extract ◽  
Wide Range ◽  
Fruit Samples ◽  
Zanthoxylum Zanthoxyloides

Flavonoids are a large group of phenolic secondary metabolites having a wide range of biochemical and pharmacological effects. In this work, a targeted liquid chromatography (LC) coupled with tandem mass spectrometry (MS2) was used to characterize the flavonoid compositions of methanolic plant extracts from separated parts (fruits, leaves, stems, trunk barks, and root barks) of Zanthoxylum zanthoxyloides. Nine flavonoids were reported in this species, including three flavanones, five flavonols and one flavone. Quantitative analysis of flavonoid profiles from Z. zanthoxyloides extracts is useful to a better understanding of the pattern and distribution of metabolites in extract samples. The concentrations of two glycosylated flavanones (neohesperidin and hesperidin) and one flavonol (quercetin) were higher in root and trunk samples compared to fruit samples. These compounds were reported in small amounts in the stem and leaf samples. In contrast, four flavonols (hyperoside, quercetin-3- O-glucopyranoside, datiscin and quercitrin) were present in significant levels only in the leaf extracts. The presence of glycosylated flavanone (eriocitrin) has been reported only in fruit extract. The antioxidant properties of different extracts were tested regarding their scavenging activities on ABTS•+ radical. Leaf and trunk bark extracts exhibited antioxidant activities, while the extracts obtained from other organs (fruits, stems, and root barks) showed low antioxidant properties.

scholarly journals Antioxidant and Antibacterial Activities of the Essential Oil of Moroccan Tetraclinis articulata (Vahl) Masters

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Halima Rabib ◽  
Chaimaa Elagdi ◽  
Mohammed Hsaine ◽  
Hassan Fougrach ◽  
Tayeb Koussa ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Essential Oil ◽  
Antioxidant Properties ◽  
Antibacterial Activities ◽  
Bornyl Acetate ◽  
Radical Trap ◽  
Tetraclinis Articulata

The purpose of this study is to evaluate and compare the antioxidant and antibacterial activities of essential oil isolated from Tetraclinis articulata (Vahl) leaves, Masters originating in Morocco (Benslimane Region, Atlantic-influenced plain). The analysis of the major compounds of essential oil was performed by gas chromatography and mass spectrometry, and this oil is dominated by bornyl acetate (35.05%), camphor (11.17%), and α-pinene (10.84%). The antioxidant properties were evaluated by the test of the radical trap 2,2-diphényl-1-picrylhydrazyl (DPPH), and the antimicrobial activity of T. articulata essential oil was tested against clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli which have been inhibited from the 25 μg/mL.

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