Phenolic compounds are often chemically unstable; therefore, their encapsulation in food grade polymers can be of great interest.Phenolics of different hydrofobicity (gallic acid and naringenin) were encapsulated in pullulan nanofibers-an edible polysaccharide-by means of homogeneous solution electrospinning and the use of ß-cyclodextrin was studied to increase the charge amounts of hydrophobic phenolic. Macroscopically homogeneous nanofibrous membranes were obtained, with fiber thicknesses ranging between 200-300 nm, with or without cyclodextrin microcrystalline aggregates. The charges were 35.5±4.97 mg g-1 of pullulan for gallic acid and 0.0450±0.006 mg g-1of pullulan for naringenin, this latter increased 87-fold after the use of ß-cyclodextrin. The materials obtained are particularly promising in applications where instantaneous release of the load is required.

Encapsulation of phenolic compounds in food grade biopolymer nanofibers / C.A. Fuenmayor, M.S. Cosio. - In: AGRONOMIA COLOMBIANA. - ISSN 0120-9965. - 34:suppl. 1(2016), pp. S951-S954. [10.15446/agron.colomb.v34n1supl.58153]

Encapsulation of phenolic compounds in food grade biopolymer nanofibers

M.S. Cosio
Co-primo
2016

Abstract

Phenolic compounds are often chemically unstable; therefore, their encapsulation in food grade polymers can be of great interest.Phenolics of different hydrofobicity (gallic acid and naringenin) were encapsulated in pullulan nanofibers-an edible polysaccharide-by means of homogeneous solution electrospinning and the use of ß-cyclodextrin was studied to increase the charge amounts of hydrophobic phenolic. Macroscopically homogeneous nanofibrous membranes were obtained, with fiber thicknesses ranging between 200-300 nm, with or without cyclodextrin microcrystalline aggregates. The charges were 35.5±4.97 mg g-1 of pullulan for gallic acid and 0.0450±0.006 mg g-1of pullulan for naringenin, this latter increased 87-fold after the use of ß-cyclodextrin. The materials obtained are particularly promising in applications where instantaneous release of the load is required.
phenolic compounds; nanoencapsulation; nanofibers; electrospinning; pullulan; cyclodextrins
Settore AGR/15 - Scienze e Tecnologie Alimentari
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/621193
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