Ultrasound‐assisted extraction of tamarind xyloglucan: an effective approach to reduce the viscosity and improve the α‐amylase inhibition of xyloglucan

Abstract

BACKGROUND Water extraction (WE) is the classical extraction method for tamarind xyloglucan (XyG), but its low yield, high viscosity and poor dispersion in aqueous solution are not conducive to the industrial applications. To promote the industrial application of tamarind XyG, an ultrasonic‐assisted extraction (UAE) method for extracting low‐viscosity XyG from tamarind kernel powder was proposed. RESULTS The yield of UAE‐XyG was higher (502.33 ± 0.036 g kg−1) than that of WE‐XyG (163.43 ± 0.085 g kg−1). UAE reduced the molecular weight, monosaccharide content and apparent viscosity of XyG. The hypoglycemic experiment in vitro showed that UAE‐XyG had a stronger inhibitory effect on α‐amylase activity than WE‐XyG, but its glucose dialysis retardation index was lower. CONCLUSION In sum, UAE is a type of extraction method that could effectively improve the yield of XyG and reduce its viscosity to expand its application without reducing its physiological activity. UAE exhibits an excellent potential in the extraction of XyG. © 2022 Society of Chemical Industry.

New Insights into the Latest Advancement in α-Amylase Inhibitors of Plant Origin with Anti-Diabetic Effects

“…Jiang and his coworkers used the ultrasonic-assisted extraction method to extract tamarind (Xyloglucan). When compared to Xyloglucan extracted using the hot water approach, they discovered that the ultrasound-aided extraction method greatly improved its α-amylase inhibitory activity (72.49%) by successfully reducing the viscosity and molecular weight of the compound [ 150 ]. In light of these encouraging results, additional research and examinations are needed to determine the correlation between the molecular structure and the anti-diabetic properties of polysaccharides and to create anti-diabetic medications derived from plant polysaccharides.…”