Release characteristic of curcumin (Zingiberaceae) from sodium alginate and polyvinyl alcohol-based hydrogel composite: antioxidant properties

• Published in: Emergent materials (Online) Vol. 6; no. 2; pp. 535 - 542
• Main Authors: Thanyacharoen, Thanyaluck, Chuysinuan, Piyachat, Techasakul, Supanna, Sukhavattanakul, Pongpat, Ummartyotin, Sarute
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2023
• Subjects: Chemistry and Materials Science; Energy Materials; Materials Engineering; Materials Science; Original Article; Antioxidant activities; Curcumin; Hydrogel; Phytochemical
• ISSN: 2522-5731; 2522-574X
• DOI: 10.1007/s42247-022-00433-4

Sodium alginate and polyvinyl alcohol-based hydrogel composite was successfully prepared by freeze–thaw technique. This technique allowed us to prepare hydrogel without any catalyst. The presence of curcumin particle was loaded due to antioxidant activities enhancement. It was adhered at the hydroxyl group throughout hydrogel network by hydrogen bonding. No significant changes of functional group, crystallinity, and thermal behavior were observed because of less amount of curcumin powder. The porous network was created due to freeze–thaw technique. At the initial stage, the swelling characteristic occurred. Water molecule was penetrated into porous network. The role of curcumin particle significantly offered antioxidant activity as reported by DPPH assay, ABTS assay, and FRAP assay. Therefore, as prepared curcumin loaded into sodium alginate and polyvinyl alcohol-based hydrogel composite has the potential for applications such as drug delivery system and nutraceutical food as well as horticulture. Graphical Abstract