Related Experiment Video
Updated: May 19, 2026

Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol
Published on: April 2, 2018
Biochemical activities of acetone extracts of Hyssopus angustifolius
Heshmatollah Alinezhad1, Robabeh Baharfar, Mahboobeh Zare
1Department of Organic Chemistry, Faculty of Chemistry, University of Mazandran, 47415, Babolsar, Iran. Nabavi208@gmail.com
Abstract:
Antioxidant and antihemolytic activities of acetone extracts of Hyssopus angustifolius flowers, leaf and stems were investigated employing different in vitro and ex vivo assay systems. IC50, for 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical-scavenging activity were 239.4 +/- 8.4 microg/mL for flowers, 357.8 +/- 11.1 microg/mL for stems and 182.5 +/- 7.5 microg/mL for leaf. All extracts showed moderate nitric oxide scavenging activity. The leaf extract exhibited better hydrogen peroxide scavenging and Fe2+ chelating activity than the others (IC50 were 261.0 +/- 6.2 microg/mL for hydrogen peroxide and 534.0 +/- 9.9 microg/mL for Fe3+ chelating activity). The extracts exhibited good antioxidant activity in linoleic acid peroxidation system and weak reducing power ability. The leaf extract showed better antihemolytic activity than the flower and stem (IC50 = 65.7 +/- 1.8 microg/mL).
Related Concept Videos
Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...
α-Hydroxy Ketones via Reductive Coupling of Esters: Acyloin Condensation Overview
Alkylation of β-Ketoester Enolates: Acetoacetic Ester Synthesis
Structures of Aldehydes and Ketones
In aldehydes (Figures 1a and 1b), the carbonyl...
