Antimicrobial activity and characterization of some phenolic compounds of Inula peacockiana (Aitch. & Hemsl.) Krovin

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
A Gökbulut ◽  
E Şarer ◽  
S Günal
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds

scholarly journals Formation and Biopharmaceutical Characterization of Electrospun PVP Mats with Propolis and Silver Nanoparticles for Fast Releasing Wound Dressing

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Erika Adomavičiūtė ◽  
Sigitas Stanys ◽  
Modestas Žilius ◽  
Vaida Juškaitė ◽  
Alvydas Pavilonis ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Wound Healing ◽  
Silver Nanoparticles ◽  
Phenolic Compounds ◽  
Wound Dressing ◽  
Ethanolic Extract ◽  
Anticancer Activities ◽  
Dressing Materials ◽  
Fast Release

Antibacterial, antiviral, antifungal, antioxidant, anti-inflammatory, and anticancer activities of propolis and its ability to stimulate the immune system and promote wound healing make it a proper component for wound dressing materials. Silver nanoparticles are recognized to demonstrate strong antiseptic and antimicrobial activity; thus, it also could be considered in the development of products for wound healing. Combining propolis and silver nanoparticles can result in improved characteristics of products designed for wound healing and care. The aim of this study was to formulate electrospun fast dissolving mats for wound dressing containing propolis ethanolic extract and silver nanoparticles. Produced electrospun nano/microfiber mats were evaluated studying their structure, dissolution rate, release of propolis phenolic compounds and silver nanoparticles, and antimicrobial activity. Biopharmaceutical characterization of electrospun mats demonstrated fast release of propolis phenolic compounds and silver nanoparticles. Evaluation of antimicrobial activity onStaphylococcus aureus,Staphylococcus epidermidis,Enterococcus faecalis,Escherichia coli,Pseudomonas aeruginosa,Proteus vulgaris,Bacillus subtilis,Bacillus cereus, andCandida albicansstrains confirmed the ability of electrospun mats to inhibit the growth of the tested microorganisms.

Characterization of phenolic compounds, anthocyanidin, antioxidant and antimicrobial activity of 25 varieties of Mexican Roselle (Hibiscus sabdariffa)

2015 ◽  
Vol 69 ◽  
pp. 385-394 ◽  
Author(s):  
I. Borrás-Linares ◽  
S. Fernández-Arroyo ◽  
D. Arráez-Roman ◽  
P.A. Palmeros-Suárez ◽  
R. Del Val-Díaz ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds ◽  
Hibiscus Sabdariffa ◽  
Antioxidant And Antimicrobial Activity

Phenolic Compounds and Antimicrobial Activity of Inula sarana Boiss.

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
O Özhan ◽  
A Gökbulut ◽  
S Günal ◽  
E Şarer
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds

scholarly journals Fabrication and Characterization of Antimicrobial Magnetron Cosputtered TiO2/Ag/Cu Composite Coatings

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 473
Author(s):  
Dilyana Gospodonova ◽  
Iliana Ivanova ◽  
Todorka Vladkova
Keyword(s):  
Antimicrobial Activity ◽  
Composite Coatings ◽  
Surface Characteristics ◽  
Standard Test ◽  
Most Probable Number ◽  
Bacterial Strains ◽  
Probable Number ◽  
Fabrication And Characterization

The aim of this study was to prepare TiO2/Ag/Cu magnetron co-sputtered coatings with controlled characteristics and to correlate them with the antimicrobial activity of the coated glass samples. The elemental composition and distribution, surface morphology, wettability, surface energy and its component were estimated as the surface characteristics influencing the bioadhesion. Well expressed, specific, Ag/Cu concentration-dependent antimicrobial activity in vitro was demonstrated toward Gram-negative and Gram-positive standard test bacterial strains both by diffusion 21 assay and by Most Probable Number of surviving cells. Direct contact and eluted silver/coper nanoparticles killing were experimentally demonstrated as a mode of the antimicrobial action of the studied TiO2/Ag/Cu thin composite coatings. It is expected that they would ensure a broad spectrum bactericidal activity during the indwelling of the coated medical devices and for at least 12 h after that, with the supposition that the benefits will be over a longer time.

scholarly journals Processing Effect and Characterization of Olive Oils from Spanish Wild Olive Trees (Olea europaea var. sylvestris)

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1304
Author(s):  
Francisco Espínola ◽  
Alfonso M. Vidal ◽  
Juan M. Espínola ◽  
Manuel Moya
Keyword(s):  
Phenolic Compounds ◽  
Volatile Compounds ◽  
Olive Tree ◽  
Extraction Yield ◽  
Point Of View ◽  
Human Consumption ◽  
Analytical Point ◽  
Wild Olive ◽  
Olive Trees

Wild olive trees have important potential, but, to date, the oil from wild olives has not been studied significantly, especially from an analytical point of view. In Spain, the wild olive tree is called “Acebuche” and its fruit “Acebuchina”. The objective of this work is to optimize the olive oil production process from the Acebuchina cultivar and characterize the oil, which could be marketed as healthy and functional food. A Box–Behnken experimental design with five central points was used, along with the Response Surface Methodology to obtain a mathematical experimental model. The oils from the Acebuchina cultivar meet the requirements for human consumption and have a good balance of fatty acids. In addition, the oils are rich in antioxidants and volatile compounds. The highest extraction yield, 12.0 g oil/100 g paste, was obtained at 90.0 min and the highest yield of phenolic compounds, 870.0 mg/kg, was achieved at 40.0 °C, and 90.0 min; but the maximum content of volatile compounds, 26.9 mg/kg, was obtained at 20 °C and 30.0 min. The oil yield is lower than that of commercial cultivars, but the contents of volatile and phenolic compounds is higher.

scholarly journals Antioxidant, Antihypertensive and Antimicrobial Properties of Phenolic Compounds Obtained from Native Plants by Different Extraction Methods

2021 ◽  
Vol 18 (5) ◽  
pp. 2475
Author(s):  
Francisco Ramiro Boy ◽  
Rocío Casquete ◽  
Ana Martínez ◽  
María de Guía Córdoba ◽  
Santiago Ruíz-Moyano ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Phenolic Compounds ◽  
Native Plants ◽  
Antimicrobial Properties ◽  
Extraction Methods ◽  
Ultra Sound ◽  
Antihypertensive Activity ◽  
Ultrasound Extraction ◽  
Rubus Ulmifolius ◽  
Cistus Salviifolius

This study aims to evaluate the efficacy of two methods (agitation and ultra-sound) for extracting phenolic compounds from 15 native plants. Plant species collected in the Dehesa of Extremadura were used. The antioxidant, antihypertensive and antimicrobial activity of the phenolic extracts was investigated. Significantly different results were obtained when comparing the two extraction methods, with the highest concentrations of phenolic compounds found for ultrasound extraction. In addition, the extracts obtained for Cistus albidus, Cistus salviifolius, Rubus ulmifolius and Quercus ilex showed the highest concentrations of phenolic compounds. The antioxidant activity was higher in the extracts of Cistus and Q. ilex obtained by ultrasound, as was the antihypertensive activity. Antimicrobial activity was also higher in the extracts obtained by ultrasound from C. salviifolius and Q. ilex plants against bacteria and from Cistus ladanifer against yeasts. Therefore, it can be concluded that, with the ultrasound extraction of phenolic compounds from C. ladanifer, C. albidus and Q. ilex plants, it is possible to obtain extracts with important functional properties, so they could be studied for their use in food with the aim of obtaining healthy and safe products, favouring the sustainability of the environment of the Dehesa Extremeña.

scholarly journals Analysis of Antioxidant and Antiallergic Active Components Extracted From the Edible Insect Oxya yezoensis

2021 ◽  
Vol 16 (5) ◽  
pp. 1934578X2110233
Author(s):  
Masahiro Saiki ◽  
Naomichi Takemoto ◽  
Maki Nagata ◽  
Masako Matsumoto ◽  
Yhiya Amen ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Unsaturated Fatty Acids ◽  
Soluble Fraction ◽  
Total Phenolic ◽  
Key Factors ◽  
Active Components ◽  
Food And Agriculture ◽  
Food And Agriculture Organization

In recent years, entomophagy has attracted increased attention, as it was recommended as a potential source of food by the Food and Agriculture Organization of the United Nations. In Japan, Oxya yezoensisis one of the most widely eaten insect species, but studies of its functionality as a food are limited. In this study, we reported the optimal characterization of the total phenolic compounds in methanolic extract (OME) and different fractions of OME. Additionally, the antioxidant and antiallergic activities of the OME fractions were evaluated. The results showed that the ethyl acetate-soluble fraction of OME has potential antioxidant activity, whereas the n-hexane-soluble fraction showed the strongest inhibition of β-hexosaminidase, which is one of the key factors in allergic reactions. It was concluded that phenolic compounds might contribute to the antioxidant activity while unsaturated fatty acids contribute to the antiallergy activity.

Sign in / Sign up

Export Citation Format

Share Document