Comparative study of encapsulation of vitamins with native and modified soy protein - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Food Hydrocolloids Année : 2014

Comparative study of encapsulation of vitamins with native and modified soy protein

Alla Nesterenko
Vanessa Durrieu

Résumé

Microencapsulation of hydrophobic (α-tocopherol) and hydrophilic (ascorbic acid) vitamins by native (non-modified) and modified soy protein isolate (SPI) was carried out using a spray-drying technique. Proteins' functional properties were modified by acylation and cationization reactions in aqueous alkaline media. The results obtained demonstrated that SPI modification resulted in decreased emulsion droplet size and viscosity. All preparations with ascorbic acid (AA) had lower viscosity and microparticle size than those with α-tocopherol (T). Moreover, grafting of fatty acid chains to SPI by acylation improved its amphiphilic character and affinity with hydrophobic substances. Thus, the microencapsulation efficiency of T was increased from 79.7% to 94.8% and the microencapsulation efficiency of AA was reduced from 91.8% to 57.3% compared to native SPI. Conversely, attachment of quaternary ammonium cationic groups to proteinic chains by cationization, increased SPI solubility and favored the AA microencapsulation. This study illustrated that an appropriate modification of SPI can improve the microencapsulation efficiency of suitable active cores.
Fichier principal
Vignette du fichier
Nesterenko_23387.pdf (1.12 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02072777 , version 1 (19-03-2019)

Identifiants

Citer

Alla Nesterenko, Isabelle Alric, Françoise Silvestre, Vanessa Durrieu. Comparative study of encapsulation of vitamins with native and modified soy protein. Food Hydrocolloids, 2014, 38, pp.172-179. ⟨10.1016/j.foodhyd.2013.12.011⟩. ⟨hal-02072777⟩
25 Consultations
92 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More