Development of active packaging films based on chitosan and nano-encapsulated luteolin.

Luteolin is a flavone with potent antioxidant and antimicrobial activities. In this study, luteolin was encapsulated in oil-in-water nanoemulsions that were emulsified by glycerol monooleate and Tween 20. Results showed 68 mg luteolin-loaded nanoemulsions had the highest stability (zeta potential of -39.

Structure and functional properties of active packaging films prepared by incorporating different flavonols into chitosan based matrix.

Kaempferol, quercetin and myricetin are typical flavonols that feature different number of hydroxyl substituents at B-ring. In this study, kaempferol, quercetin and myricetin were individually mixed with chitosan (CS) based film matrix to develop active packaging films. Results showed the incorporation of flavonols produced dense inner microstructure by establishing intermolecular hydrogen bonding interactions with film matrix.

Synthesis, characterization, antioxidant and antimicrobial activities of starch aldehyde-quercetin conjugate.

In this study, corn starch was functionalized with quercetin. Starch was first oxidized by sodium periodate to produce starch aldehyde, and then starch aldehyde was conjugated with quercetin through acid catalyzed condensation reaction. The structure, antioxidant and antimicrobial activities of starch aldehyde-quercetin conjugate were evaluated.

Preparation and characterization of antioxidant packaging by chitosan, D-α-tocopheryl polyethylene glycol 1000 succinate and baicalein.

Baicalein (BN) is a kind of flavonoid with strong antioxidant ability. In this study, antioxidant packaging was developed by incorporating BN and D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) into chitosan (CS) film matrix for the first time. Effect of BN content (0.

Preparation and characterization of antioxidant and antimicrobial packaging films based on chitosan and proanthocyanidins.

The antioxidant and antimicrobial food packaging films were prepared by using chitosan (CS) and proanthocyanidins (PA). Effect of PA content (0, 5, 10, 15 and 20 wt% of PA on CS basis) on the physical, antioxidant and antimicrobial properties of CS-based films were determined. The prepared CS-PA films showed a brown color.