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DYNA

versão impressa ISSN 0012-7353

Resumo

ORDONEZ-SANTOS, Luis Eduardo; MARTINEZ-GIRON, Jader  e  VILLAMIZAR-VARGAS, Rafael Humberto. Encapsulation of β-carotene extracted from peach palm residues: a stability study using two spray-dried processes. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.206, pp.128-134. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v85n206.68089.

This study aimed to evaluate the stability of β-carotene from peach palm residues (Bactris gasipaes) when using two processes of encapsulation with spray drying: The first process (MC1) consisted of a mixture of maltodextrin: gum arabic as the wall material, an inlet temperature of 160°C, an outlet temperature of 70 °C, flow rate of 12.6 mL/min; the second process (MC2) used gelatin, sugar and lecithin, an inlet temperature of 100°C, an outlet temperature of 65°C, and a flow rate of 3.13 mL/min. The microcapsules (MC1 and MC2) were subjected to physicochemical tests, evaluating their stability for temperature, light, pH and oxygen, as compared to a control of β-carotene extracted from sunflower oil (RCSO). The results indicated that the microcapsules obtained from process (MC2) had better β-carotene stability (p <0.05), as compared to MC1 and RCSO, with higher levels of retention (88.24%), temperature (90.11%), light (67.36%), pH (84.21%) and oxygen (79.23%).

Palavras-chave : peel; ultrasound; sunflower oil; gelatin; morphology.

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