Ultrasonic assisted extraction of polyphenols from bayberry by deep eutectic supramolecular polymer and its application in bio-active film

• Published in: Ultrasonics sonochemistry 2023-01, Vol.92, p.106283, Article 106283
• Main Authors: Shi, Feng, Hai, Xiaoping, Zhu, Yun, Ma, Lei, Wang, Lina, Yin, Jinfang, Li, Xiaofen, Yang, Zhi, Yuan, Mingwei, Xiong, Huabin, Gao, Yuntao
• Format: Article
• Language: English
• Subjects: Antioxidant capacity; Bio-active film; Deep eutectic supramolecular polymer; Myrica; Original; Polymers; Polyphenolic of bayberry; Polyphenols - chemistry; Solvents - chemistry; Ultrasonic-assisted extraction; Ultrasonics
• ISSN: 1350-4177; 1873-2828; 1873-2828
• DOI: 10.1016/j.ultsonch.2022.106283

[Display omitted] •Developed a highly efficient extractant: deep eutectic supramolecular polymer.•Ultrasound-assisted DESP extraction system was efficient to polyphenolic compounds from bayberry.•Developed DESP-CS bioactive membranes based on DESP and chitosan.•Bioactive substances (TPs) enhance the mechanical properties of DESP-CS membranes.•The DESP-CS films can be developed as a new type of green bio-glue. Ultrasound and deep eutectic supramolecular polymers (DESP) is a novel combination of green extraction method for phytochemicals. In this study, a new type of green extractant was developed: DESP. It is a derivative of deep eutectic solvent (DES) and was prepared by supramolecular polymer unit β-cyclodextrin (β-CD) as hydrogen bond acceptor (HBA) and organic acid as hydrogen bond donor (HBD). The current work focuses on the use of ultrasonic-assisted (UAE) DESP extraction of polyphenolic compounds (PCs) from bayberry. The experimental results showed that DESP synthesized with β-CD and lactic acid (LA) in a ratio of 1:1 (w/w %) had the best extraction effect. And by using a three-level factor experiment and the response surface method, the predicted TPC content is very close to the actual content (28.85 ± 1.27 mg GAE/g). The DESP extract including PCs were further used as plasticizer for chitosan (CS) to prepare highly active green biofilms (DESP-CS). It is possible to reduce the tedious procedures for separating biologically active substances from DESP. The experiment proved that the prepared films have good mechanical properties, plastic deformation resistance, thermal stability and antioxidant activity.