title: Biopolymer-prebiotic carbohydrate blends and their effects on the retention of bioactive compounds and maintenance of antioxidant activity.
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±2wt.%) and entrapment efficiency (94±3wt.%), whilst WPI-IN blend yielded the highest encapsulation efficiency (88±2wt.%). After encapsulation, composition of geranylgeraniol in the annatto seed oil was maintained (23.0±0.5g/100g 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.
authors.affiliation: LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP (University of Campinas), Rua Monteiro Lobato, 80, Campinas, SP CEP: 13083-862, Brazil.
authors.forename: Eric Keven
authors.initials: EK
authors.lastname: Silva
authors.affiliation: LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP (University of Campinas), Rua Monteiro Lobato, 80, Campinas, SP CEP: 13083-862, Brazil.
authors.forename: Giovani L
authors.initials: GL
authors.lastname: Zabot
authors.affiliation: LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP (University of Campinas), Rua Monteiro Lobato, 80, Campinas, SP CEP: 13083-862, Brazil.
authors.forename: Cinthia B B
authors.initials: CB
authors.lastname: Cazarin
authors.affiliation: LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP (University of Campinas), Rua Monteiro Lobato, 80, Campinas, SP CEP: 13083-862, Brazil.
authors.forename: Mário R
authors.initials: MR
authors.lastname: Maróstica
authors.affiliation: LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP (University of Campinas), Rua Monteiro Lobato, 80, Campinas, SP CEP: 13083-862, Brazil. Electronic address: maameireles@gmail.com.
authors.forename: M Angela A
authors.initials: MA
authors.lastname: Meireles
mesh_terms: D000578:Amidines; D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D001713:Biphenyl Compounds; D031212:Bixaceae; D018651:Cichorium intybus; D002839:Chromans; D004224:Diterpenes / Q000032:analysis / Q000737:chemistry; D004655:Emulsions; D006170:Gum Arabic / Q000737:chemistry; D007444:Inulin / Q000737:chemistry*; D000072257:Oxygen Radical Absorbance Capacity; D010316:Particle Size; D010851:Picrates; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D056692:Prebiotics; D013213:Starch / Q000737:chemistry; D014867:Water / Q000737:chemistry; D000067816:Whey Proteins / Q000737:chemistry; D003313:Zea mays
chemical_list: D000578:Amidines; D000975:Antioxidants; D001713:Biphenyl Compounds; D002839:Chromans; D004224:Diterpenes; D004655:Emulsions; D010851:Picrates; D010938:Plant Oils; D056692:Prebiotics; D000067816:Whey Proteins; D014867:Water; C046728:2,2'-azobis(2-amidinopropane); D006170:Gum Arabic; D013213:Starch; D007444:Inulin; C017338:geranylgeraniol; C004931:1,1-diphenyl-2-picrylhydrazyl; C010643:6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid
keywords: Annatto seed oil; Geranylgeraniol retention; Gum acacia; Inulin; Modified starch