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Purification and Oxidative Scavenging of Total Alkaloids of Piperis longi fructus Based on Adsorption Kinetics and Thermodynamic Theory

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Τίτλος: Purification and Oxidative Scavenging of Total Alkaloids of Piperis longi fructus Based on Adsorption Kinetics and Thermodynamic Theory
Συγγραφείς: Lirong Lu, Dezhi Shi, Nuo Chen, Chengchao Wu, Hang Zhang, Shaohui Zhong, Jing Ji, Yunfeng Zheng, Jianming Cheng, Shiwen Huang, Taoshi Liu
Πηγή: Molecules ; Volume 30 ; Issue 7 ; Pages: 1476
Στοιχεία εκδότη: Multidisciplinary Digital Publishing Institute
Έτος έκδοσης: 2025
Συλλογή: MDPI Open Access Publishing
Θεματικοί όροι: Piperis longi fructus, enrichment, adsorption kinetics, adsorption thermodynamics, antioxidant activity
Θέμα γεωγραφικό: agris
Περιγραφή: 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 adsorption behavior on D101 resin was effectively modeled by pseudo-second-order kinetics. According to this mechanism, we selected the best adsorption parameters and optimized the on-column elution process to effectively enrich the total alkaloid components. The optimal process was as follows: D101 macroporous resin was added to an alcohol solution (crude drug concentration of 2 g/mL) and then concentrated under a vacuum at 45~55 °C (<−0.08~−0.10 MPa) until alcohol-free. Subsequently, the resin was loaded into the column and eluted with 70% ethanol at a flow rate of 2 BV/h for 10 BV to achieve desorption. The present study provides a more efficient method for the enrichment of the total alkaloidal components of Piperis longi fructus, which will lay the foundation for applications in food additives or functional foods in the future.
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Γλώσσα: English
Relation: https://dx.doi.org/10.3390/molecules30071476
DOI: 10.3390/molecules30071476
Διαθεσιμότητα: https://doi.org/10.3390/molecules30071476
Rights: https://creativecommons.org/licenses/by/4.0/
Αριθμός Καταχώρησης: edsbas.73F8D985
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  Data: Purification and Oxidative Scavenging of Total Alkaloids of Piperis longi fructus Based on Adsorption Kinetics and Thermodynamic Theory
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  Data: Molecules ; Volume 30 ; Issue 7 ; Pages: 1476
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  Data: 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&#176; &lt; 0), exothermicity (ΔH&#176; &lt; 0), and an increase in entropy (ΔS&#176; &lt; 0). Furthermore, the kinetic adsorption behavior on D101 resin was effectively modeled by pseudo-second-order kinetics. According to this mechanism, we selected the best adsorption parameters and optimized the on-column elution process to effectively enrich the total alkaloid components. The optimal process was as follows: D101 macroporous resin was added to an alcohol solution (crude drug concentration of 2 g/mL) and then concentrated under a vacuum at 45~55 &#176;C (&lt;−0.08~−0.10 MPa) until alcohol-free. Subsequently, the resin was loaded into the column and eluted with 70% ethanol at a flow rate of 2 BV/h for 10 BV to achieve desorption. The present study provides a more efficient method for the enrichment of the total alkaloidal components of Piperis longi fructus, which will lay the foundation for applications in food additives or functional foods in the future.
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