Purification and Oxidative Scavenging of Total Alkaloids of <i>Piperis longi fructus</i> Based on Adsorption Kinetics and Thermodynamic Theory.

ABSTRACT: An effective method for purifying the total alkaloid components from Piperis longi fructus extract was developed in this study. The adsorption/desorption processes of the total alkaloid components from Piperis longi fructus were established by resin model screening, adsorption kinetics, and adsorption thermodynamics tests. Moreover, the purified powders were analyzed with UPLC-Q-ZENO-TOF-MS/MS and then their antioxidant activity was tested. The Langmuir equation provided a good fit with the experimental results. The thermodynamic study provides a satisfactory fit for the isotherm data, indicating that the adsorption process is characterized by spontaneity (ΔG° < 0), exothermicity (ΔH° < 0), and an increase in entropy (ΔS° < 0). Furthermore, the kinetic ad

SUBMITTER: Lu L 

PROVIDER: S-EPMC11990382 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature