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|Title:||Biopolymer-prebiotic carbohydrate blends and their effects on the retention of bioactive compounds and maintenance of antioxidant activity|
|Author:||Silva, Eric Keven|
Zabot, Giovani L.
Cazarin, Cinthia B. B.
Maróstica Jr., Mário R.
Meireles, M. Angela A.
|Abstract:||The objective of this study was to evaluate the use of inulin (IN), a prebiotic carbohydrate without superficial activity, as an encapsulating matrix of lipophilic bioactive compounds. For achieving the encapsulation, IN was associated with biopolymers that present superficial activity: modified starch (HiCap), whey protein isolate (WPI) and gum acacia (GA). Encapsulation was performed through emulsification assisted by ultrasound followed by freeze-drying (FD) process to dry the emulsions. All blends retained geranylgeraniol. GA-IN blend yielded the highest geranylgeraniol retention (96 ± 2 wt.%) and entrapment efficiency (94 ± 3 wt.%), whilst WPI-IN blend yielded the highest encapsulation efficiency (88 ± 2 wt.%). After encapsulation, composition of geranylgeraniol in the annatto seed oil was maintained (23.0 ± 0.5 g/100 g of oil). Such findings indicate that the method of encapsulation preserved the active compound. All blends were also effective for maintaining the antioxidant activity of the oil through ORAC and DPPH analyses|
|Appears in Collections:||FEA - Artigos e Outros Documentos|
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