Enhanced Extraction of Polyphenols, Flavonoids and Antioxidant Activity from Cynometra ananta Stem Bark using Ultrasonic Method: A Kinetic Modelling Approach
Kinetic modeling reveals improved polyphenol yield and antioxidant activity using ultrasound-assisted extraction, indicating its efficiency over conventional methods.
Key Points
Ultrasound-assisted extraction significantly enhances polyphenol yield, achieving 482 µg GAE/mg DM compared to 420 µg with maceration.
Flavonoid content increased to 14.18 µg QE/mg DM with ultrasound, outperforming 7.72 µg QE/mg DM achieved by maceration.
Antioxidant activity (FRAP) reached a saturation concentration of 238 µg Trolox/mg DM with ultrasound, indicating greater efficiency.
Kinetic modeling showed an excellent correlation (R2 > 0.99) across all conditions, underscoring the reliability of the results.