Inhibition of pancreatic lipase by coffee leaves-derived polyphenols : A mechanistic study

Copyright © 2024 Elsevier Ltd. All rights reserved..

The suppression of pancreatic lipase has been employed to mitigate obesity. This study explored the mechanism of coffee leaf extracts to inhibit pancreatic lipase. The ethyl acetate fraction derived from coffee leaves (EAC) exhibited the highest inhibitory capacity with a half-maximal inhibitory concentration (IC50) of 0.469 mg/mL and an inhibitor constant (Ki) of 0.185 mg/mL. This fraction was enriched with 3,5-dicaffeoylquinic acid (3,5-diCQA, 146.50 mg/g), epicatechin (87.51 mg/g), and isoquercetin (48.29 mg/g). EAC inhibited lipase in a reversible and competitive manner, and quenched its intrinsic fluorescence through a static mechanism. Molecular docking revealed that bioactive compounds in EAC bind to key amino acid residues (HIS-263, PHE-77, and SER-152) located within the active cavity of lipase. Catechin derivatives play a key role in the lipase inhibitory activity within EAC. Overall, our findings highlight the promising potential of coffee leaf extract as a functional ingredient for alleviating obesity through inhibition of lipase.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:444

Enthalten in:

Food chemistry - 444(2024) vom: 30. März, Seite 138514

Sprache:

Englisch

Beteiligte Personen:

Cao, Qingwei [VerfasserIn]
Mei, Suhuan [VerfasserIn]
Mehmood, Arshad [VerfasserIn]
Sun, Yu [VerfasserIn]
Chen, Xiumin [VerfasserIn]

Links:

Volltext

Themen:

8R1V1STN48
Catechin
Chemometrics
Coffee leaves
EC 3.1.1.3
Enzyme Inhibitors
Inhibition kinetics
Journal Article
Lipase
Molecular docking
Obesity
Pancreatic lipase
Plant Extracts
Polyphenols
Spectroscopy

Anmerkungen:

Date Completed 11.03.2024

Date Revised 11.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.foodchem.2024.138514

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368002802