Characterization and Biological Activities of Polysaccharides from Dandelion (Taraxacum officinale) Leaves. (23rd November 2020)

• Record Type: Journal Article
• Authors: Wang, Libo; Gao, Jingyu; Li, Lianyu; Huang, Jing; Yang, Yu; Xu, Yaqin; Wang, Yabin; Liu, Yong
• Is Part Of: Stärke. Volume 73:Number 3/4(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-11-23
• Subjects: activities -- dandelion leaves -- dandelions -- polysaccharides -- simulated digestion; Starch -- Periodicals; 572.566
• DOI: 10.1002/star.202000051
• Languages: English
• ISSNs: 0038-9056

Abstract

Abstract: A dandelion leaf polysaccharide (DLP) with a sugar content of 46.53 ± 2.22% is isolated using ultrasonic‐assisted enzymatic extraction. The DLP contains two polysaccharide fractions with respective molecular weights ( M w ) of 1900 and 22 800 g mol −1 . Gas chromatography analysis reveals a composition of rhamnose, arabinose, mannose, galactose, and glucose. DLP displays excellent water holding and oil holding capacities, along with a moderate emulsifying activity and stability. Following simulated digestion in vitro, DLP can exist stably in the digestive system (saliva, gastric, and small intestine) without degradation. Furthermore, DLP possesses prebiotic properties and could be utilized as a carbon source. Abstract : The dandelion ( Taraxacum officinale )‐an edible plant‐contains remarkable bioactive properties, such as antimicrobial, antioxidant, anti‐diabetic, and immunostimulatory effects. Herein, the characterization, simulated digestion in vitro and prebiotic activity of dandelion leaf polysaccharides (DLP) are investigated. DLP is composed of five main monosaccharides and contains two polysaccharide fractions. The properties of DLP suggest stability in digestion and a reproductive effect on probiotics.