Journal
POWDER TECHNOLOGY
Volume 423, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.powtec.2023.118492
Keywords
Curcumin; Self-assembly; Photochemical stability; Amphiphilic copolymers; Functional food
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In this study, MPEG-PTMC@Cur NPs were prepared using MPEG-PTMC as the carrier, which showed improved physicochemical stability and photochemical stability of Cur. The NPs also exhibited enhanced antioxidant activity and oral bioavailability. Therefore, MPEG-PTMC@Cur NPs could be a promising delivery system for Cur.
Curcumin (Cur), an antioxidant molecule, has multiple medicinal properties and displays therapeutic values. However, in some functional food applications, the incorporation of Cur is limited because of its poor solubility and inherent physicochemical instability. Herein, to address these issues, PEGylated poly (trimethylene car-bonate) (MPEG-PTMC) was used as the polymeric carrier for fabricating the Cur loaded nanoparticles (MPEG-PTMC@Cur NPs). The MPEG-PTMC@Cur NPs had an average size of-130 nm. Importantly, after being incorporated in MPEG-PTMC@Cur NPs, the photochemical stability of Cur was significantly enhanced. The degradation rate of Cur was only about 15%. Furthermore, the MPEG-PTMC@Cur NPs exhibited improved DPPH scavenging ability (SC25 = 14.40 mu g/mL) compared with that of the free Cur (SC25 > 30 mu g/mL). Importantly, the pharmacokinetic study demonstrated that the oral relative bioavailability of MPEG-PTMC@Cur NPs was significantly improved. All these results support that MPEG-PTMC@Cur NPs could be an effective delivery system for Cur.
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