TY - JOUR AU - Sohemat, Amasee A. AU - Atrooz, Omar M. AU - Farah, Husni S. PY - 2023/02/28 Y2 - 2024/03/28 TI - Evaluation of the Anti-Inflammatory, Antioxidant, and Protease Inhibitory Activity of the Crude Methanol Extract of Portulaca oleracea: http://.www.doi.org/10.26538/tjnpr/v7i2.15 JF - Tropical Journal of Natural Product Research (TJNPR) JA - TJNPR VL - 7 IS - 2 SE - Articles DO - UR - https://tjnpr.org/index.php/home/article/view/1655 SP - 2397-2401 AB - <p>Protease inhibitors have considerable applications in biomedicine, biotechnology, and therapy. The aim of the study was to evaluate the methanol crude extracts of aerial portions of <em>Portulaca&nbsp; </em><em>oleracea </em>(<em>P. oleracea</em>) for anti-inflammatory, antioxidant, and protease inhibitor activities, and to evaluate their inhibitory action against various therapeutically significant proteases. A modified colorimetric assay was used to analyze the protease inhibitors on trypsin and other therapeutic enzymes. <em>P. oleracea </em>crude leaf extract exhibited 79.92% antioxidant and 75% anti-inflammatory activity. Analysis of the effects of crude <em>P. oleracea </em>extract on the values of enzyme kinetics (Km, Vmax) was determined by Lineweaver-Burk reciprocal plot. It was found that the extract exhibited a potent inhibitory effect on the Vmax (µmole/min) of the chymotrypsin 26.0, trypsin 18.0, papain 8.33, and elastase 10.0, when compared to control 41.0, 73.0, 11.11, and 20.3, respectively. While no effect on Km except for elastase which was decreased from 0.026 mM for the control to 0.01 mM. It was found that this effect showed a powerful inhibition in a different way. There is a mixed non-competitive inhibition on elastase as well as pure non-competitive inhibition on chymotrypsin, trypsin, and papain. The crude extract contained 53.3%, 55.7%, 14.9%, and 26.9%, respectively, of protease inhibitors for the therapeutic protease enzymes trypsin, papain, chymotrypsin, and elastase. Therefore, trypsin, papain, chymotrypsin, and elastase have been inhibited by the crude extract of <em>P. oleracea</em>. Characterization of the crude extract indicated potent anti-inflammatory and antioxidant effects.</p> ER -