title: Effects of waxy rice and tapioca starches on the physicochemical and sensory properties of white sauces enriched with functional fibre.
abstract: This study was conducted to examine the physicochemical and sensory properties of gluten-free white sauces (WSs) prepared with waxy rice starch (WRS) or tapioca starch (TS) and high amylose maize starch (HAMS) as the source of resistance starch RS2 type. Herschel-Bulkley model (H-B) was successfully used to describe the flow behavior of WSs. Temperature had a notable effect on the derived from H-B relation parameters and the Arrhenius equation was applied to describe changes in consistency. The values of storage modulus (G') were higher than those of loss modulus (G″) with loss tangent between 0.1 and 1.0 within the tested frequency range of 0.1-50Hz. Generalized Cox-Merz rule was used to correlate the steady shear properties to viscoelasticity of WSs. Consumers were tolerant to the presence of HAMS and mostly interested in consuming WSs containing 3.0-3.5wt% WRS and 2.5-3.0wt% TS.
authors.affiliation: Department of Food Technology, West Pomeranian University of Technology in Szczecin, Poland. Electronic address: Grazyna.Bortnowska@zut.edu.pl.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Bortnowska
authors.affiliation: Center of Bioimmobilisation and Innovative Packaging Materials, West Pomeranian University of Technology in Szczecin, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Krudos
authors.affiliation: OHLY GmbH, Hamburg, Germany.
authors.forename: Violetta
authors.initials: V
authors.lastname: Schube
authors.affiliation: Center of Bioimmobilisation and Innovative Packaging Materials, West Pomeranian University of Technology in Szczecin, Poland.
authors.forename: Wioletta
authors.initials: W
authors.lastname: Krawczyńska
authors.affiliation: Department of Food Technology, West Pomeranian University of Technology in Szczecin, Poland.
authors.forename: Natalia
authors.initials: N
authors.lastname: Krzemińska
authors.affiliation: Department of Food Technology, West Pomeranian University of Technology in Szczecin, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Mojka
mesh_terms: D000328:Adult; D000688:Amylose / Q000737:chemistry; D055598:Chemical Phenomena; D003258:Consumer Behavior; D004043:Dietary Fiber / Q000032:analysis; D005260:Female; D005511:Food Handling; D006801:Humans; D008297:Male; D002365:Manihot / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D012275:Oryza / Q000737:chemistry*; D012212:Rheology; D013213:Starch / Q000737:chemistry; D013649:Taste; D014885:Waxes / Q000737:chemistry*; D055815:Young Adult
chemical_list: D004043:Dietary Fiber; D014885:Waxes; D013213:Starch; D000688:Amylose
keywords: Functional fibre; Potassium sorbate (PubChem CID: 23676745); Rheology; Sensory analysis; Sodium chloride (PubChem CID: 5234); Starch; White sauce