Novel konjac glucomannan films with oxidized chitin nanocrystals immobilized red cabbage anthocyanins for intelligent food packaging

An active and intelligent film was developed by immobilizing red cabbage anthocyanins (RCA) into an oxidized-chitin nanocrystals (O-ChNCs)/konjac glucomannan (KGM) matrix. O-ChNCs were selected as a host complex to anchor RCA and were considered as a reinforcement filler in the films. Zeta-potential, Fourier-transform infrared spectroscopy, X-ray diffraction, rheology, and release results revealed that RCA interacted with O-ChNCs through...