Abstract
In this study, the nanocomplexes as a novel delivery system for curcumin, were successfully fabricated using high methoxyl pectin (HMP), individual surfactants (rhamnolipid (Rha), tea saponin (TS) and ethyl lauroyl arginate hydrochloride (ELA)) and pea protein isolate (PPI). The optimum mass ratio between PPI and curcumin was 40:1. The HMP-Rha-PPI-Cur, HMP-TS-PPI-Cur and HMP-ELA-PPI-Cur complexes which had particle sizes of 453, 422 and 587 nm, exhibited encapsulation efficiencies of curcumin with 93.46, 92.05 and 86.73%, respectively. The analysis of FTIR revealed that HMP-surfactant-PPI-Cur complexes were formed mainly by hydrogen bonding and electrostatic attraction. XRD result showed that curcumin exhibited a non-crystallized state in the ternary complexes. Moreover, the curcumin within the HMP-Rha-PPI ternary complexes showed better stability under UV-light, thermal and simulated gastrointestinal conditions.
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