The Potential of Hemp Extracts to Modify the Course of Oxidative-Stress Related Conditions.

The leaves of industrial hemp, which have long been considered as a waste product, have been proven to contain numerous compounds that possess potential biological activity. One of the most interesting groups of compounds present are polyphenolic compounds, which, due to their specific structure, have a pronounced antioxidant and antihyperglycemic potential. This study aimed to detect biological activity, including antioxidant and antihyperglycemic potential, of water and water-alcoholic extracts of five commercially available hemp teas, followed by phytochemical profiling. Hemp aqueous and ethanolic extracts demonstrate potent antioxidant properties. Ethanol extracts are better scavengers of DPPH• and OH•, while aqueous extracts neutralize NO• better. Both types of extracts exhibit antioxidant potential in the catalase test and moderate XOD inhibition. Furthermore, aqueous extracts are potent α-amylase inhibitors, while ethanolic extracts demonstrate stronger anti-α-glucosidase activity, suggesting therapeutic potential for chronic diseases like insulin resistance or diabetes. Further detailed chemical characterization and in vivo studies are needed to validate these findings.