Ultrasonic-assisted aqueous two-phase extraction and purification of polyphenols from hawk tea (Litsea coreana var. lanuginose): Investigating its impact on starch digestion.

Hawk tea, a conventional herbal beverage, is renowned for its beneficial properties in enhancing digestion and mitigating hyperglycemic tendencies. However, the extraction methodology for hawk tea polyphenols (HTP) has been understudied thus far, impeding its progress and broader application. To develop an efficient approach for HTP extraction, the present study introduced and optimized the application of ultrasonic-assisted aqueous two-phase extraction.