Phenolic composition and biological activities of geographically different type of propolis and black cottonwood resins against oral streptococci, vaginal microbiota and phytopathogenic Fusarium species

2020 ◽  
Vol 129 (2) ◽  
pp. 296-310 ◽  
Author(s):  
P. Ristivojević ◽  
T. Stević ◽  
M. Starović ◽  
S. Pavlović ◽  
M.M. Özcan ◽  
...  
Keyword(s):  
Biological Activities ◽  
Fusarium Species ◽  
Vaginal Microbiota ◽  
Oral Streptococci ◽  
Phenolic Composition ◽  
Black Cottonwood

scholarly journals Phenolic Composition and Antioxidant Activity of Plants Belonging to the Cephalaria (Caprifoliaceae) Genus

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 952
Author(s):  
Małgorzata Chrząszcz ◽  
Barbara Krzemińska ◽  
Rafał Celiński ◽  
Katarzyna Szewczyk
Keyword(s):  
Antioxidant Activity ◽  
Lung Diseases ◽  
Antioxidative Activity ◽  
Biological Activities ◽  
Natural Antioxidants ◽  
Antioxidant Effect ◽  
In Vivo Studies ◽  
Phenolic Composition

The genus Cephalaria, belonging to the Caprifoliaceae family, is a rich source of interesting secondary metabolites, including mainly saponins which display a variety of biological activities, such as immunomodulatory, antimicrobial and hemolytic effects. Besides these compounds, flavonoids and phenolic acids were identified in Cephalaria species. Cephalaria is employed in traditional medicine e.g., to cure cardiac and lung diseases, rheumatism, and regulate menstruation. In this review we focus on the phenolic compound composition and antioxidative activity of Cephalaria species. The antioxidant effect can be explained by flavonoids present in all parts of these plants. However, future efforts should concentrate more on in vitro and in vivo studies and also on clinical trials in order to confirm the possibility of using these plants as natural antioxidants for the pharmacology, food or cosmetic industries.

scholarly journals A First Approach to the Chemical Composition and Antioxidant Potential of Guinea-Bissau Propolis

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984413 ◽  
Author(s):  
Soraia I. Falcão ◽  
Mélissa Lopes ◽  
Miguel Vilas-Boas
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Natural Product ◽  
Broad Spectrum ◽  
Biological Activities ◽  
Chemical Diversity ◽  
Antioxidant Potential ◽  
Phenolic Composition ◽  
First Time

Propolis is a natural product derived from plant resins collected by honeybees and used in the beehive as a construction and defensive material. The broad spectrum of biological activities is dependent on the chemical diversity of its composition which is determined by the floral sources at the site of collection. For the first time, the chemical composition of Guinean propolis as well as its physicochemical properties, phenolic composition, and antioxidant activity was assessed. Eight compounds were identified through LC/DAD/ESI-MS n , mostly isoflavonoids, resembling Nigerian and Brazilian red propolis from the genus Dalbergia.

scholarly journals Contribution of the phenolic composition to the antioxidant, anti-inflammatory and antitumor potential of Equisetum giganteum L. and Tilia platyphyllos Scop.

2017 ◽  
Vol 8 (3) ◽  
pp. 975-984 ◽  
Author(s):  
Inés Jabeur ◽  
Natália Martins ◽  
Lillian Barros ◽  
Ricardo C. Calhelha ◽  
Josiana Vaz ◽  
...  
Keyword(s):  
Biological Activities ◽  
Phenolic Composition ◽  
Naturally Occurring ◽  
Antitumor Potential ◽  
Tilia Platyphyllos ◽  
Anti Inflammatory

Naturally-occurring phytochemicals have received pivotal attention in the last few years, due to the increasing evidence of biological activities.

Combined effect of beauvericin and T-2 toxin on antioxidant defence systems in cherry tomato shoots

2014 ◽  
Vol 7 (2) ◽  
pp. 207-215 ◽  
Author(s):  
C. Paciolla ◽  
A. Florio ◽  
G. Mulè ◽  
A.F. Logrieco
Keyword(s):  
Reactive Oxygen Species ◽  
Biological Activities ◽  
Fusarium Species ◽  
Reactive Oxygen ◽  
Monodehydroascorbate Reductase ◽  
Combined Effects ◽  
Oxygen Species ◽  
Cherry Tomato ◽  
Chemical Structures ◽  
Glutathione Cycle

During their life cycle, plants can undergo simultaneous attack by different pathogens that produce various toxins. It is well known that in some plant-fungal interactions, mycotoxins play an important role in pathogenesis and induce a reactive oxygen species increase. Plants counteract the overaccumulation of reactive oxygen species by reinforcing their defence systems. The mycotoxins T-2 toxin (T-2) and beauvericin (BEA) are produced by some Fusarium species and have different chemical structures, mechanisms of action and biological activities. In this study, the individual and combined effects of these two toxins on defence systems, such as the ascorbate-glutathione cycle and peroxidases, were evaluated in cherry tomato shoots. Hydrogen peroxide content as an index of oxidative stress was also measured. Inhibitory effects on ascorbate peroxidase, dehydroascorbate reductase and ascorbate, and stimulatory effects on glutathione reductase, monodehydroascorbate reductase and reduced glutathione were observed when tomato plants were simultaneously treated with BEA and T-2. The trend of these biochemical parameters highlight the presence of a range of defence mechanisms activated by plants in response to mycotoxins. The interaction between BEA and T-2 resulting in synergistic and/or antagonistic effects on the studied defence systems is also discussed. It is concluded that the effects of these mycotoxins alone are not predictive of their combined effects.

scholarly journals Nutritional Content and Antioxidant Capacity of the Seed and the Epicarp in Different Ecotypes of Pistacia atlantica Desf. Subsp. atlantica

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1065 ◽  
Author(s):  
Amina Labdelli ◽  
Abdelkrim Rebiai ◽  
Mohammed Tahirine ◽  
Ahmed Adda ◽  
Othmane Merah
Keyword(s):  
Human Health ◽  
High Performance ◽  
Biological Activities ◽  
Reversed Phase ◽  
Essential Elements ◽  
Phenolic Composition ◽  
Nutritional Values ◽  
Pistacia Atlantica ◽  
Phenolic Contents ◽  
Calcium Phosphorus

Phenolic compounds are secondary metabolites that occur naturally in all plants. Seeds are among the richest organs of plants in phytochemicals, vitamins and minerals. These compounds and their biological activities are of great importance for human health. This study aimed to analyze the phenolic composition and their antioxidant activity in the seeds and epicarps of six Algerian populations of Pistacia atlantica Desf. subsp. atlantica growing along an aridity gradient from semi-arid to Saharan environmental conditions. Higher phenolic contents were observed in epicarp compared to seeds whatever the ecotype. The highest phenolic content of seeds and epicarps was observed in ecotype of Djelfa and the lowest values in Tiaret (T-Z). Phenolic composition, measured by reversed-phase high-performance liquid chromatography (HPLC), showed that quercetin in epicarp, gallic and chlorogenic acids in seeds were the most present in all ecotypes. Large differences were observed between ecotypes for nutritional values. Seeds were rich in flavonoids, proteins, carbohydrates and essential elements such as potassium, calcium, phosphorus and iron. These results highlighted the potential importance of Atlas pistachio fruits as a source of essential compounds that contribute to human health. Moreover, this underused species may serve a potential source for antioxidant components for alimentation and cosmetics purposes.

scholarly journals Blue honeysuckle fruit (Lonicera caerulea L.) from eastern Russia: phenolic composition, nutritional value and biological activities of its polar extracts

2016 ◽  
Vol 7 (4) ◽  
pp. 1892-1903 ◽  
Author(s):  
Giovanni Caprioli ◽  
Romilde Iannarelli ◽  
Marzia Innocenti ◽  
Maria Bellumori ◽  
Dennis Fiorini ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Biological Activities ◽  
Phenolic Composition ◽  
Biological Investigation ◽  
Lonicera Caerulea ◽  
Polar Extracts ◽  
Blue Honeysuckle ◽  
Eastern Russia

We conducted a chemical and biological investigation of blue honeysuckle growing in eastern Russia.

ACTIVITY OF PERICARP EXTRACT OF MANGOSTEEN AGAINST ORAL STREPTOCOCCI

2017 ◽  
Vol 20 (1) ◽  
pp. 41-46
Author(s):  
Dewi Nurul Mustaqimah ◽  
Josh Erry HW
Keyword(s):  
Antimicrobial Activity ◽  
Dental Caries ◽  
Streptococcus Mutans ◽  
Antimicrobial Agents ◽  
Biological Activities ◽  
World Health ◽  
Direct Result ◽  
Oral Streptococci ◽  
Oral Pathogens

The increasing prevalence of dental caries is still as a major world health problem. Caries is the direct result of acid production by cariogenic oral pathogens, especially Streptococcus mutans. New and better antimicrobial agents active against cariogenic bacteria with minimal side effects on the oral tissues are much needed, especially natural agents derived directly from plants. Phytochemical studies have shown that the extracts from various parts of mangosteen or Garciniamangostana Linn tree contain varieties of secondary metabolites such as prenylated and oxygenated xanthones, many of which have been found in vitro to have antimicrobial properties against oral pathogens. Several studies which examined the eficacy of herbal for human health have shown that xanthones from mangosteen have remarkable biological activities such as antioxidant, antimicrobial, anticancer etc, and had no cytotoxic effects on human gingival fibroblasts. Their results showed that among these xanthone derivatives obtain from pericarp extract of mangosteen, α-mangostin has the most potent antimicrobial activity against cariogenic Streptococcus mutans. It can be concluded that the strong antimicrobial activity of the pericarp extract of mangosteen is a good drug of choice that might be helpful in preventing the dental caries.

Variability of phenolic composition and biological activities of two Tunisian halophyte species from contrasted regions

2012 ◽  
Vol 35 (3) ◽  
pp. 749-761 ◽  
Author(s):  
Najla Trabelsi ◽  
Pierre Waffo-Téguo ◽  
Mejdi Snoussi ◽  
Riadh Ksouri ◽  
Jean Michel Mérillon ◽  
...  
Keyword(s):  
Biological Activities ◽  
Phenolic Composition

Variation of phenolic composition and biological activities in Limoniastrum monopetalum L. organs

2011 ◽  
Vol 34 (1) ◽  
pp. 87-96 ◽  
Author(s):  
Najla Trabelsi ◽  
Hanen Falleh ◽  
Ines Jallali ◽  
Alia Ben Daly ◽  
Hafedh Hajlaoui ◽  
...  
Keyword(s):  
Biological Activities ◽  
Phenolic Composition ◽  
Limoniastrum Monopetalum
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