Effects of Extraction Methods on the Physicochemical, Structural, Functional Properties and Biological Activities of Extracted Polysaccharides from Ononis natrix Leaves

Polysaccharides were extracted from Ononis natrix leaves using various methods, including hot water maceration (HWM), ultrasound-assisted extraction (USE), enzyme-assisted extraction (ENE), combined enzyme-ultrasound (EUS) and combined maceration-ultrasound (MUS) treatment. The extracted crude polysaccharides were characterized in terms of physicochemical, structural, techno-functional features, and biological activities. HWM extraction showed the highest yield (13.7 ± 0.3