In 2021,World News of Natural Sciences included an article by 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.. Category: tetrahydrofurans. The article was titled 《Phytochemical and in vitro antioxidant assessment of Yoyo bitters》. The information in the text is summarized as follows:
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 phytochem. composition and antioxidant capacity of a non-alc. polyherbal formulation, Yoyo bitters, towards validating its broad pharmacol. claims. The phytochem. components of Yoyo bitters were ascertained by phytochem. screening assays and gas chromatog.-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. Qual. phytochem. anal. 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 resp. GC-MS chromatogram revealed the presence of forty-three (43) phytochem. 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 resp. compared to ascorbic acid of 0.161 mg/mL and 0.130 mg/mL resp. Total antioxidant capacity and ferric reducing antioxidant power of Yoyo bitters were 0.432 mg AAE/mL and 2.236 mg AAE/mL resp. This study validates the antioxidant capacity of Yoyo bitters and provides chem. basis for its acclaimed pharmacol. actions.3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Category: tetrahydrofurans) was used in this study.
3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) is a 5-membered cyclic ester. It was obtained via tin-conversion of biomass-derived 1,3-dihydroxyacetone (DHA) and formaldehyde. And it may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis.Category: tetrahydrofurans
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem