Structure, physicochemical stability and in vitro simulated gastrointestinal digestion properties of β-carotene loaded zein-propylene glycol alginate composite nanoparticles fabricated by emulsification-evaporation method. (August 2018)

• Record Type: Journal Article
• Authors: Wei, Yang; Sun, Cuixia; Dai, Lei; Zhan, Xinyu; Gao, Yanxiang
• Is Part Of: Food hydrocolloids. Volume 81(2018)
• Page Start: 149
• Page End: 158
• Publication Date: 2018-08
• Subjects: Zein -- Propylene glycol alginate -- β-Carotene -- Emulsification-evaporation -- Physicochemical stability -- In vitro release; Hydrocolloids -- Periodicals; Food additives -- Periodicals; Colloïdes -- Périodiques; Aliments -- Additifs -- Périodiques; Colloids; Food additives; Periodicals; Electronic journals; 664.06
• DOI: 10.1016/j.foodhyd.2018.02.042
• Languages: English
• ISSNs: 0268-005X

Abstract

Abstract: In this study, zein-propylene glycol alginate (PGA) composite nanoparticles were fabricated by emulsification-evaporation method, and their potential to be a delivery vehicle for β-carotene was investigated. The results showed that different PGA levels resulted in various structural characteristics, physicochemical stability and properties of in vitro simulated gastrointestinal digestion of β-carotene loaded zein-PGA composite nanoparticles. The analyses of fluorescence spectrum, circular dichroism and fourier transform infrared spectroscopy revealed that electrostatic interaction, hydrogen bonding and hydrophobic attraction played important roles in the formation of composite nanoparticles. The β-carotene entrapped in nanoparticles was amorphous, confirmed by differential scanning calorimetry. The improved physicochemical stability and the sustained release of β-carotene in nanoparticles proved the potential of zein-PGA composite nanoparticles as an excellent vehicle to deliver β-carotene in food system. Graphical abstract: Image 1 Highlights: β-Carotene loaded zein-propylene glycol alginate (PGA) composite nanoparticles were fabricated by emulsification-evaporation method. The physicochemical stability of β-carotene loaded zein-PGA composite nanoparticles was dependent on PGA level. Electrostatic interaction, hydrogen bondings and hydrophobic attraction were involved in the formation of zein-PGA composite nanoparticles. β-Carotene in zein-PGA composite nanoparticles exhibited the enhanced physicochemical stability and the sustained release.