Passa al contenuto

Reactive Nitrogen Species Scavenging Capacity of Aqueous and Ethanolic Extracts from Galinsoga parviflora and G. quadriradiata Herbs.

Reactive Nitrogen Species Scavenging Capacity of Aqueous and Ethanolic Extracts from Galinsoga parviflora and G. quadriradiata Herbs.

Natural product communications (2016-01-12)

Marta Rogowska, Sinisa Srecec, Agnieszka Bazylko

ABSTRACT

The aim of the study was to determine the scavenging capacity of aqueous and ethanolic extracts derived from the herb of two species of Galinsoga against NO and ONOO-. In both tests the aqueous extracts of both Galinsoga species were more active than the ethanolic extracts. The highest scavenging activity against NO, and also against ONOO- was shown by G. quadriradiata aqueous extract (SC50 ± SD = 1.54 ± 0.32, and 2.10 ± 1.98, respectively). The study showed that the activity of the extracts from both Galinsoga species is related not only to the presence of flavonoids but also to caffeic acid derivatives and caffeic acid. The results of this study partly explain the beneficial effects of Galinsoga herb extracts in the treatment of skin diseases.

MATERIALI

N° Catalogo

Marchio

Descrizione del prodotto

Sigma-Aldrich

Acido cloridrico, ACS reagent, 37%

Sigma-Aldrich

Ethyl alcohol, Pure, 200 proof, ACS reagent, ≥99.5%

Sigma-Aldrich

Acido cloridrico, ACS reagent, 37%

Sigma-Aldrich

Cloruro di idrogeno, 4.0 M in dioxane

Sigma-Aldrich

Ethyl alcohol, Pure, 200 proof, meets USP testing specifications

Sigma-Aldrich

Ethyl alcohol, Pure, 190 proof, for molecular biology

Sigma-Aldrich

Acido cloridrico, 1.0 N, BioReagent, suitable for cell culture

Sigma-Aldrich

Acido cloridrico, 37 wt. % in H₂O, 99.999% trace metals basis

Sigma-Aldrich

Acido cloridrico, 36.5-38.0%, BioReagent, for molecular biology

Sigma-Aldrich

Cloruro di idrogeno, 2.0 M in diethyl ether

Supelco

Acido cloridrico, volumetric, 0.1 M HCl (0.1N), endotoxin free

Sigma-Aldrich

Luminol, 97%

Sigma-Aldrich

Cloruro di idrogeno, 1.0 M in diethyl ether

Sigma-Aldrich

Luminol, ≥97% (HPLC)

Sigma-Aldrich

Acido cloridrico, ~6 M in H₂O, for amino acid analysis

Sigma-Aldrich

Cloruro di idrogeno, 3 M in cyclopentyl methyl ether (CPME)

Sigma-Aldrich

Etanolo, purum, fine spirit, denaturated with 4.8% methanol, F25 METHYL¹, ~96% (based on denaturant-free substance)

Sigma-Aldrich

Acido cloridrico, 32 wt. % in H₂O, FCC

Supelco

Ethanol solution, certified reference material, 2000 μg/mL in methanol

Sigma-Aldrich

Etanolo, purum, absolute ethanol, denaturated with 2% 2-butanone, A15 MEK¹, ≥99.8% (based on denaturant-free substance)

Sigma-Aldrich

Cloruro di idrogeno, 1.0 M in acetic acid

Sigma-Aldrich

Etanolo, purum, fine spirit, denaturated with 2% 2-butanone, F25 MEK¹, ~96% (based on denaturant-free substance)

Sigma-Aldrich

Etanolo, purum, secunda spirit, denaturated with 2% 2-butanone, S15, ~96% (based on denaturant-free substance)

Sigma-Aldrich

Ethyl alcohol, Pure, 160 proof, Excise Tax-free, Permit for use required