Acetone effects on Buddleja scordioides polyphenol extraction process and assessment of their cellular antioxidant capacity and anti-inflammatory activity

The use of water, acetone, and hydroacetonic solutions as an extraction solvent for polyphenol compounds from Buddleja scordioides has been investigated. The phenolic profiles determined by liquid chromatography—electrospray ionization—mass spectrometry/mass spectrometry (LC–ESI–MS/MS) were compared with those obtained with the traditional aqueous infusion used for the treatment of gastrointestinal disorders. It was evaluated the effects of polyphenol extract at physiologically relevant conditions against H2O2-induced oxidative stress via attenuation of reactive oxygen species (ROS) levels and lipopolysaccharide (LPS)-induced inflammation in human HT-29 cells. The use of hydroacetonic solutions allows obtaining phytochemical extracts enriched with constituents that have antioxidant and anti-inflammatory activity in intestinal cells. This suggests that polyphenols of low and middle polarity from Buddleja scordioides may be better extracted with hydroacetonic solutions, and showing high nutraceutical potential to reduce oxidative stress associated with the onset and progress of inflammatory diseases.