Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "phytochemical analysis" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Phytochemical and in vitro antioxidant assessment of Yoyo bitters
Autorzy:
James-Okoro, Paula-Peace O.
Iheagwam, Franklyn N.
Sholeye, Mariam I.
Umoren, Itoroobong A.
Adetuyi, Babatunde O.
Ogundipe, Adebanke E.
Braimah, Adefoyeke A.
Adekunbi, Tobi S.
Ogunlana, Oluseyi E.
Ogunlana, Olubanke O.
Powiązania:
https://bibliotekanauki.pl/articles/1031418.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
GCMS
Yoyo herbal bitters
antioxidant assay
in vitro
phytochemical analysis
Opis:
In this paper, herbal bitters are widely used due to their numerous acclaimed health benefits in many Nigerian homes; however, many have not been subjected to scientific scrutiny. The aim of this study was to determine the phytochemical composition and antioxidant capacity of a non-alcoholic polyherbal formulation, Yoyo bitters, towards validating its broad pharmacological claims. The phytochemical components of Yoyo bitters were ascertained by phytochemical screening assays and gas chromatography-mass spectrometry (GC-MS). The antioxidant activity was investigated in vitro using 2,2-diphenyl-1-picryhydrazyl (DPPH) radical, hydrogen peroxide (H2O2) scavenging activity, total antioxidant capacity (TAC) and ferric reducing antioxidant power (FRAP) assays. Qualitative phytochemical analysis of Yoyo bitters showed the presence of saponins, tannins, flavonoids, terpenoids, cardiac glycosides and anthocyanins. The total phenols, flavonoids, flavanols, tannins and carotenoids content were 14.741 ±0.64 mg GAE/ml, 0.152 ±0.01 mg RE/ml, 0.437 ±0.02 mg RE/ml, 0.368 ±0.04 mg TAE/ml and 0.016 ±0.00 mg CAE/ml respectively. GC-MS chromatogram revealed the presence of forty-three (43) phytochemical compounds with D-allose (41.81%), 1,6-anhydro-beta-D-glucofuranose (24.15%), 5-hydroxymethylfurfural (8.02%) and Z-6-pentadecen-1-ol acetate (3.50%) as the most abundant constituents. Yoyo bitters demonstrated effective antioxidant activity against DPPH and H2O2 with IC50 values of 0.492 mg/ml and 0.629 mg/ml respectively compared to ascorbic acid of 0.161 mg/ml and 0.130 mg/ml respectively. Total antioxidant capacity and ferric reducing antioxidant power of Yoyo bitters were 0.432 mg AAE/ml and 2.236 mg AAE/ml respectively. This study validates the antioxidant capacity of Yoyo bitters and provides chemical basis for its acclaimed pharmacological actions.
Źródło:
World News of Natural Sciences; 2021, 37; 1-17
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sex-related differences in the dioecious species Rumex thyrsiflorus Fingerh. – analysis of the content of phenolic constituents in leaf extracts
Autorzy:
Dziedzic, K.
Szopa, A.
Waligorski, P.
Ekiert, H.
Slesak, H.
Powiązania:
https://bibliotekanauki.pl/articles/2117817.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Rumex thyrsiflorus
thyrse sorrel
dioecy
sex-related differences
sexual dimorphism in
plants
phenolic compounds
phytochemical analysis
HPLC-DAD
Opis:
Rumex thyrsiflorus Fingerh. is mentioned as a European folk medicinal plant. This species has also been traditionally used as an edible plant in Eastern Europe because of its nutritional value. During the study, qualitative and quantitative sex-related differences of phenolic constituents in methanolic leaf extracts of R. thyrsiflorus were evaluated. The presence of the same substances (nine phenolic acids before, and six phenolic acids after acid hydrolysis, nine flavonoids, and a catechin) was estimated in both female and male specimens, using the HPLC-DAD method. A statistically significant higher content of eleven constituents in female plant extracts (acids: chlorogenic, p-coumaric, cryptochlorogenic, gallic, protocatechuic, neochlorogenic, vanillic; flavonoids: quercitrin, rhamnetin, rutoside; and a catechin) was shown. This is the first report concerning the relation between the sex and the content of biologically active phenolic secondary metabolites in leaf extracts of R. thyrsiflorus. Female plants of R. thyrsiflorus could be useful for pharmaceutical purposes as a preferential source of bioactive phenolic acids, flavonoids and especially catechin.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2020, 62, 1; 43-50
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies