scholarly journals Detection of caffeic and chlorogenic acids from methanolic extract of Annona squamosa bark by LC-ESI-MS/MS

2018 ◽  
pp. 1 ◽  
Author(s):  
Hamzah Salman ◽  
Senthilkumar Ramasamy ◽  
Bassam Mahmood
Keyword(s):  
Methanolic Extract ◽  
Chlorogenic Acids ◽  
Annona Squamosa ◽  
Esi Ms

Flavon- and Flavonolglycosides from Achillea pannonica Scheele

2001 ◽  
Vol 56 (7-8) ◽  
pp. 521-525 ◽  
Author(s):  
Denata Kasaj ◽  
Liselotte Krenn ◽  
Sonja Prinz ◽  
Antje Hüfner ◽  
Shi Shan Yuc ◽  
...  
Keyword(s):  
Methanolic Extract ◽  
2D Nmr ◽  
Flavonoid Glycosides ◽  
Spectroscopic Methods ◽  
Esi Ms ◽  
Aerial Parts ◽  
Nmr Techniques ◽  
Chemotaxonomic Study ◽  
First Time ◽  
C Nmr

The detailed investigation of a methanolic extract of aerial parts of Achillea pannonica SCHEELE. within a chemotaxonomic study led to the isolation of 6 flavonoid glycosides. Besides rutin, apigenin-7-O-glucopyranoside, luteolin-7-O-glucopyranoside, apigenin-7-O-rutinoside and acacetin-7-O-rutinoside, an unusual flavondiglucoside was isolated. Its structure was established by UV, 1HNMR and 13C NMR spectroscopic methods including 2D-NMR techniques and ESI-MS as luteolin-7,4′-O-β-diglucoside. This substance is reported for the first time in the genus Achillea. Chemotaxonomic aspects are discussed briefly

scholarly journals Domestic Cooking Effects of Bambara Groundnuts and Common Beans in the Antioxidant Properties and Polyphenol Profiles

2017 ◽  
Vol 6 (2) ◽  
pp. 24 ◽  
Author(s):  
V. Nyau ◽  
S. Prakash ◽  
J. Rodrigues ◽  
J. Farrant
Keyword(s):  
Free Radical ◽  
Methanolic Extract ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Esi Ms ◽  
Positive Effects ◽  
Phytochemical Profiles

Processing of legumes before consumption has several effects on micronutrients, macronutrients and phytonutrients. This study was undertaken to investigate the effect of domestic processing on antioxidant activities and phenolic phytochemicals of the red bambara groundnuts and red beans. The study employed in vitro antioxidant assays (DPPH and FRAP) to screen for antioxidant properties, HPLC-PDA-ESI-MS and Folin Ciocalteu assay to screen for phenolic phytochemical profiles. Domestic cooking displayed positive effects on the antioxidant activity and phenolic phytochemical profiles of the two legumes. The free radical scavenging speed increased 10-fold in the methanolic extract from cooked red bambara groundnuts compared to uncooked. By contrast, the free radical scavenging speed increased 20-fold in the methanolic extract from cooked red beans compared to uncooked. HPLC-PDA-ESI-MS profiles of the cooked red bambara groundnuts and red beans revealed a number of emergent phenolic compounds, mainly flavonoids. These data indicate that cooking appear to enhance the nutraceutical profiles of the legumes investigated.

scholarly journals ANTICANCER EFFECT OF METHANOLIC EXTRACT OF ANNONA SQUAMOSA ON MAMMARY CARCINOMA IN RATS WITH REFERENCE TO GLYCOPROTEIN COMPONENTS, LYSOSOMAL, AND MARKER ENZYMES

2017 ◽  
Vol 10 (9) ◽  
pp. 180
Author(s):  
Nandhakumar Elumalai ◽  
Indumathi Parameswaran ◽  
Sachidanandam T Panchanatham
Keyword(s):  
Body Weight ◽  
Mammary Carcinoma ◽  
Lysosomal Enzymes ◽  
Methanolic Extract ◽  
The Body ◽  
Active Principle ◽  
Dependent Manner ◽  
Marker Enzymes ◽  
Annona Squamosa ◽  
Anticancer Effect

  Objectives: The aim is to evaluate the anticancer potential of Annona squamosa (AS) against 7, 12-dimethylbenz(a)anthracene (DMBA)-induced mammary carcinoma in rats.Methods: The tumor was induced in Sprague-Dawley rats by gastric intubation of 25 mg DMBA in 1 ml olive oil. After 3 months of induction period, the methanolic extract of AS at different doses of 100, 150, 200, 250, and 300 mg/kg body weight were administered orally a dose per day to mammary carcinoma-bearing rats for 45 days. The serum and tissue levels of glycoprotein components as well as the activities of marker enzymes and lysosomal enzymes were measured in DMBA-induced mammary carcinoma-bearing rats.Results: Administration of AS resulted in decrease in the levels of marker and lysosomal enzymes and also alterations in the body weight and tumor volume were also restored to near normalcy in a dose-dependent manner. The results of the present study indicate that AS has anticancer effect and it exhibits its potential effect at the dosage of 200 mg/kg body weight in mammary carcinoma-bearing rats.Conclusions: Based on the results obtained, it can be concluded that the methanol extract of AS possesses anticancer properties. Further study is needed to isolate the active principle of this extract responsible for anticancer activity to develop the future pharmaceuticals.

scholarly journals DOLABRANE-TYPE DITERPENOID AND LIGNAN CONSTITUENTS FROM THE STEM BARKS OF CERIOPS DECANDRA (GRIFF.) W. THEOB.

2020 ◽  
Vol 58 (4) ◽  
pp. 419
Author(s):  
Kieu Thi Phuong Linh ◽  
Nguyen Van Chien ◽  
Nguyen Quoc Trung ◽  
Vu Huy Thong ◽  
Nguyen Van Tuyen ◽  
...  
Keyword(s):  
Detailed Analysis ◽  
Methanolic Extract ◽  
2D Nmr ◽  
Spectroscopic Techniques ◽  
Chromatographic Separations ◽  
First Report ◽  
Esi Ms ◽  
Ceriops Decandra

Three dolabrane-type diterpenoids (1‒3) and a lignan derivative (4) were isolated from a methanolic extract of C. decandra stem barks using various chromatographic separations. Their structures were elucidated to be tagalsine X (1), tagalsin P (2), ent-5α,2-oxodolabr-3-ene-3,15,16-triol (3), and (+)-pinoresinol (4) by detailed analysis via spectroscopic techniques (1D, 2D NMR, and ESI-MS data) as well as comparison with those reported. This is the first report of compound 4 from the Ceriops genus.

scholarly journals SECONDARY METABOLITES FROM THE STEM BARKS OF RHIZOPHORA MUCRONATA LAMK

2020 ◽  
Vol 58 (6) ◽  
pp. 653
Author(s):  
Nguyen Phuong Thao
Keyword(s):  
Secondary Metabolites ◽  
Detailed Analysis ◽  
Methanolic Extract ◽  
2D Nmr ◽  
Spectroscopic Techniques ◽  
Rhizophora Mucronata ◽  
Chromatographic Separations ◽  
First Report ◽  
Esi Ms ◽  
Phenolic Derivatives

Using various chromatographic separations, three phenolic derivatives (1‒3) and three phytosteryl glycosides (4‒6) were isolated from a methanolic extract of R. mucronata stem barks. Their structures were elucidated to be cinchonain Ia (1), breynioside B (2), polystachyol (3), β-sitosterol 3-O-β-D-glucopyranoside (4), β-sitosterol 3-O-β-D-(6'-O-palmitoyl) glucopyran-oside (5), and β-sitosterol 3-O-β-D-(6'-O-stearoyl)glucopyranoside (6) by detailed analysis via spectroscopic techniques (1D, 2D NMR, and ESI-MS data) as well as comparison with those reported. This is the first report of compounds 1‒6 from the Rhizophora genus.

scholarly journals Flavonoids in Achillea collina

2001 ◽  
Vol 69 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Denata Kasaj ◽  
Liselotte Krenn ◽  
Gottfried Reznicek ◽  
Sonja Prinz ◽  
Antje Hüfner ◽  
...  
Keyword(s):  
Methanolic Extract ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Esi Ms ◽  
Aerial Parts ◽  
First Time

In a detailed study on the flavonoid pattern of Achillea collina BECKER ten flavonoids were isolated from a methanolic extract of aerial parts of the plant. Their structures were determined by UV, ESI-MS, GC-MS and NMR spectroscopic methods including 2D-NMR. Apigenin-7-O-rutinoside was proven for the first time in the genus Achillea.

scholarly journals Qualitative Profile and Quantitative Determination of Flavonoids from Crocus Sativus L. Petals by LC-MS/MS

2008 ◽  
Vol 3 (12) ◽  
pp. 1934578X0800301 ◽  
Author(s):  
Paola Montoro ◽  
Carlo I. G. Tuberoso ◽  
Mariateresa Maldini ◽  
Paolo Cabras ◽  
Cosimo Pizza
Keyword(s):  
Quantitative Determination ◽  
Methanolic Extract ◽  
Waste Product ◽  
Crocus Sativus ◽  
Esi Ms ◽  
Quantitative Studies ◽  
Derivatives Of ◽  
Crocus Sativus L

From the methanolic extract of Crocus sativus petals nine known flavonoids have been isolated and identified, including glycosidic derivatives of quercetin and kaempferol as major compounds (1–2), and their methoxylated and acetylated derivatives. Additionally, LC-ESI-MS qualitative and LC-ESI-MS/MS quantitative studies of the major compounds of the methanolic extract were performed. The high content of glycosylated flavonoids could give value to C. sativus petals, which are a waste product in the production of the spice saffron.

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