Biological activities and chemical analysis of phenolic and flavonoid components of Thymus hirtus Willd. and Thymus lanceolatus Desf. extracts

2018 ◽  
Vol 16 (6) ◽  
pp. 353-364
Author(s):  
A. Nouasri ◽  
S. Krimat ◽  
D. Dahmane ◽  
A. Ksouri ◽  
H. Metidji ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Biological Activities ◽  
Phenolic And Flavonoid

Chemical analysis and biological activities of methanol extracts from Astragalus gombiformis Pomel (Fabaceae)

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
H Teyeb ◽  
O Houta ◽  
A Lamari ◽  
M Neffati ◽  
W Douki ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Biological Activities ◽  
Methanol Extracts

scholarly journals Total phenolic and flavonoid contents and biological activities of Cachrys cristata DC. extracts

2014 ◽  
Vol 66 (3) ◽  
pp. 1117-1123
Author(s):  
Jelena Matejic ◽  
Ana Dzamic ◽  
Tatjana Mihajilov-Krstev ◽  
Vladimir Randjelovic ◽  
Ksenija Mileski ◽  
...  
Keyword(s):  
Salmonella Enteritidis ◽  
Antimicrobial Agents ◽  
Biological Activities ◽  
Total Phenolic ◽  
Bacterial Strains ◽  
Phenolic Contents ◽  
Aerial Parts ◽  
Potential Source ◽  
Dilution Assay ◽  
Phenolic And Flavonoid

The total phenolic/flavonoid contents and antioxidant potential of the methanol, ethyl-acetate, acetone and water extracts obtained from the aerial parts and fruits of Cachrys cristata DC.(Apiaceae) were compared. The total phenolic contents of the tested extracts were determined using Folin-Ciocalteu?s reagent. The amounts per g of dry plant extract of gallic acid (GA) and quercetin (Qu) ranged between 22.60-166.97 mg, and 8.91-46.02 mg, respectively. The antioxidant activity, expressed as IC50, ranged from 1.784-17.621 mg/mL and from 1.01-3.42 mg L(+)-ascorbic acid (Vitamin C)/g when tested with 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ABTS, respectively. The antimicrobial activity of the extracts was investigated by the microwell dilution assay, for the most common human gastrointestinal pathogenic bacterial strains: Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 9027, Salmonella enteritidis ATCC 13076, Bacillus cereus ATCC 10876, Listeria monocytogenes ATCC15313, Staphylococcus aureus ATCC 25923 and yeast Candida albicans ATCC 10231. The results indicate that C. cristata can be regarded as a potential source of antioxidant and antimicrobial agents.

scholarly journals Advances in the Chemical Analysis and Biological Activities of Chuanxiong

Molecules ◽  
2012 ◽  
Vol 17 (9) ◽  
pp. 10614-10651 ◽  
Author(s):  
Weixia Li ◽  
Yuping Tang ◽  
Yanyan Chen ◽  
Jin-Ao Duan
Keyword(s):  
Chemical Analysis ◽  
Biological Activities

scholarly journals Chemical Analysis of the Main Metabolites of Three Spontaneous Plants From the Saharan Area (Algeria)

2021 ◽  
Author(s):  
Imène RADJAI
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Chemical Analysis ◽  
Biological Activities ◽  
Time Of Flight ◽  
Chemical Study ◽  
Biological Functions ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Cotula Cinerea

Spontaneous plants metabolites are more widespread for their properties and biological functions. Also, natural products have reminded diverse scientists to take a delight in their medical and insecticidal applications linked to the environmental. A variety of metabolites have a defensive function for the plants. Thus, three spontaneous plants: Caroxylon imbricatum, Tetraena alba and Cotula cinerea collected from two ecotypes and analyzed by two known conventional methods:Gas Chromatography‐Mass Spectrometry GC QTOF(quadrupole time of flight )_MS and Liquid Chromatography-Mass spectrometry LCQTOF(quadrupole time of flight )_MS. The investigation conducted out on the identification and quantification of metabolites revealed the main metabolites which have biological activities as a part of an alternative to synthetic insecticides. The chemical study showed the presence of N-Butylbenzensulfonamide and Sulfoxycaprylicacid in the three plants. N-Carboxy-methionineresidue, Butanoicacid and Valine were found in those of Cotula cinerea and Caroxylon imbricatum (Forssk.). Artomunoxanthentrione, Glycoaldehyde, Indoline, ,Benzensulfonamide and Oxoproline were detected in extracts of Caroxylon imbricatum (Forssk.) and Tetraena alba (L.f.) In addition, Pyrroline is the only compound common in Cotula cinerea and Tetraena alba (L.f.).

scholarly journals Chemical Analysis and Biological Activities of Annona muricata Leaves Extract from Sarawak

2019 ◽  
Vol 14 (3) ◽  
pp. 6042-6051
Author(s):  
Khong Heng Yen ◽  
Mujibuddin bin Morshidi ◽  
Korrawinwich Boonpisuttinant
Keyword(s):  
Chemical Analysis ◽  
Biological Activities ◽  
Annona Muricata

scholarly journals Polyphenolic Content and Biological Activities of Post-Distillation Waste of Three Sage Species from the Republic of Macedonia

2017 ◽  
Vol 18 (1) ◽  
pp. 27
Author(s):  
Ana Alimpic ◽  
Katarina Šavikin ◽  
Dejan Pljevljakušić ◽  
Vlado Matevski ◽  
Petar D. Marin ◽  
...  
Keyword(s):  
Linoleic Acid ◽  
Biological Activities ◽  
Raw Material ◽  
Total Phenolic ◽  
Republic Of Macedonia ◽  
Polyphenolic Content ◽  
The Republic ◽  
First Time ◽  
Phenolic And Flavonoid ◽  
Β Carotene

This research was aimed at investigating polyphenolic content, antioxidant and anti-neurodegenerative activities of post-distillation waste extracts of Macedonian Salvia amplexicaulis, S. jurisicii and S. ringens, for the first time. Total phenolic and flavonoid contents varied in a broad range (3.92-146.49 mg GAE/g and 7.11-67.51 mg QE/g, respectively), with the highest values obtained for S. amplexicaulis and S. ringens extracts. Certain S. amplexicaulis and S. ringens extracts neutralized more than 80% of DPPH radicals at the highest concentration, while S. amplexicaulis extracts showed up to ≈50% inhibition of β-carotene oxidation in β-carotene/linoleic acid assay. Post-distillation waste extracts inhibited acetylcholinesterase (25.94-38.15%) and tyrosinase (18.84-59.52%), with the strongest inhibition of S. amplexicaulis extracts. The obtained results suggest that post-distillation waste of tested species, especially of S. amplexicaulis, show antioxidant and anti-neurodegenerative activities and could be considered as potential raw material rich in polyphenols.

Assessment of urban stream sediment pollutants entering estuaries using chemical analysis and multiple bioassays to characterise biological activities

2017 ◽  
Vol 593-594 ◽  
pp. 498-507 ◽  
Author(s):  
Svenja Boehler ◽  
Ruben Strecker ◽  
Patrick Heinrich ◽  
Erik Prochazka ◽  
Grant L. Northcott ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Biological Activities ◽  
Stream Sediment ◽  
Urban Stream

scholarly journals Bis-bibenzyls from the Cameroon Liverwort Marchantia debilis

2016 ◽  
Vol 11 (9) ◽  
pp. 1934578X1601100
Author(s):  
Kenneth Yongabi Anchang ◽  
Miroslav Novaković ◽  
Danka Bukvički ◽  
Yoshinori Asakawa
Keyword(s):  
Chemical Analysis ◽  
Methyl Ether ◽  
Aromatic Compounds ◽  
Methanol Extract ◽  
Biological Activities ◽  
Wide Spectrum ◽  
First Report ◽  
First Time

Liverworts are rich sources of terpenoids and aromatic compounds among which bis-bibenzyls are well known for their wide spectrum of biological activities. This is the first report of chemical analysis of the African liverwort Marchantia debilis Goebel. From the methanol extract marchantinquinone-1′-methyl ether was newly isolated together with three known bis-bibenzyls, marchantin C, marchantinquinone and perrottetin E. The presence of bis-bibenzyls with a quinone moiety is noted for the first time in the Marchantia genus.

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