Simultaneously Enhanced Stability and Biological Activities of Chlorogenic Acid by Covalent Grafting with Soluble Oat β-glucan
Overview
Affiliations
Chlorogenic acid (CA) has a wide range of biological activities but the chemical structure is extremely unstable. In this study, CA was grafted onto a soluble oat β-glucan (OβGH) to improve the stability. Although the crystallinity and thermal stability of CA-OβGH conjugates reduced, the storage stability of CA significantly improved. The DPPH and ABTS scavenging ability of CA-OβGH IV (graft ratio 285.3 mg CA/g) were higher than 90 %, which is closed to activities of equivalent concentration of Vc (93.42 %) and CA (90.81 %). The antibacterial abilities of CA-OβGH conjugates are improved compared to the equivalent content of CA and potassium sorbate. Particularly, the inhibition rate of CA-OβGH for gram-positive bacteria ( and ) are significantly higher than that of gram-negative bacteria (). The results demonstrated that covalent grafted CA with soluble polysaccharide is an effective strategy to enhance its stability and biological activities.
Jiang L, Li Y, Zheng F, Zhang M, Zheng W, Liu D Food Chem X. 2024; 23:101735.
PMID: 39263338 PMC: 11388355. DOI: 10.1016/j.fochx.2024.101735.
Li H, He W, Xu S, Wang R, Ge S, Xu H Food Chem X. 2024; 21:101075.
PMID: 38205160 PMC: 10776644. DOI: 10.1016/j.fochx.2023.101075.
Cao H, Wang X, Shi M, Guan X, Zhang C, Wang Y Food Chem X. 2023; 19:100793.
PMID: 37780315 PMC: 10534095. DOI: 10.1016/j.fochx.2023.100793.
Wang M, Li Y, Meng F, Wang Q, Wang Z, Liu D Food Chem X. 2023; 18:100675.
PMID: 37122553 PMC: 10130771. DOI: 10.1016/j.fochx.2023.100675.