The Effect of Refrigerated Storage on Anti-Diabetic and Antioxidant Potency of Probiotic Yogurt Treated with Some Medicinal Plants
Document Type
Article
Publication Date
4-1-2023
Abstract
This research aimed to evaluate the effect of the inclusion of Codonopsis pilosula (CP), Illicium verum (IV), Lycium barbarum (LB), and Psidium guajava (PG) water extracts in yogurt (Y) on phenolic antioxidant-linked a-amylase and a -glucosidase inhibitory activities. Four types of herbal yogurt (CP-Y, IV-Y, LB-Y, and PG-Y) and plain-Y (control) were prepared and stored in disposable plastic containers at 4 degrees C for 28 days. All samples were analysed for peptide concentration using O-phthaldialdehyde, total phenolic content (TPC), 1,1-Diphenyl-2-Picrylhydrazyl radical scavenging activity, and a-amylase and a-glucosidase inhibitory activities (IC50). LB-Y showed the highest peptide concentration and TPC (p < 0.05) among all the yogurts during storage. IV-Y showed the highest (p < 0.05) radical scavenging activity among all herbal yogurts. The best a-amylase and a-glucosidase inhibitory activity (IC50) for all herbal yogurt was on days 7 and 14 of storage. In conclusion, all herbal yogurts could be considered as a potential functional food with antioxidant and anti-diabetic properties.
Keywords
herbal yogurt, peptide concentration, antioxidant, alpha-amylase, alpha-glucosidase
Divisions
InstituteofBiologicalSciences
Funders
Institutional Fund Projects (IFPIP: 17-247-1443),Ministry of Education,King Abdulaziz University
Publication Title
Fermentation-Basel
Volume
9
Issue
5
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND