title: Effect of different fibers on dough properties and biscuit quality.
abstract: BACKGROUND
  This study forms part of a broader project aimed at understanding the role of fibers from different sources in high-fat, high-sugar biscuits and at selecting the best fibers for biscuit quality. The main purpose of this work was to understand the rheological and structural properties involved in fiber-enriched biscuit dough. High-amylose corn starch (RSII), chemically modified starch (RSIV), oat fiber (OF) and inulin (IN) were used at two different levels of incorporation (6 and 12 g) in dough formulation. The influence of fiber on the properties of biscuit dough was studied via dynamic rheological tests, confocal microscopy and spreading behavior. Biscuit quality was assessed by width/thickness factor, texture and surface characteristics, total dietary fiber and sensory evaluation.
  
  
  RESULTS
  Main results indicated that IN incorporation increased the capacity of dough spreading during baking and thus improved biscuit quality. OF reduced dough spreading during baking and strongly increased its resistance to deformation. RSII and RSIV slightly affected the quality of the biscuits. Sensory evaluation revealed that the panel liked IN-incorporated biscuits as much as control biscuits.
  
  
  CONCLUSIONS
  The increase in total dietary fiber modified dough behavior and biscuit properties, and the extent of these effects depended on the type of fiber incorporated. © 2016 Society of Chemical Industry.
authors.affiliation: Instituto de Ciencia y Tecnología de los Alimentos Córdoba (ICYTAC), UNC-CONICET, Argentina.|Facultad de Ciencias Agropecuarias, UNC, Argentina.
authors.forename: María S
authors.initials: MS
authors.lastname: Blanco Canalis
authors.affiliation: Instituto de Ciencia y Tecnología de los Alimentos Córdoba (ICYTAC), UNC-CONICET, Argentina.|Facultad de Ciencias Agropecuarias, UNC, Argentina.|Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Argentina.
authors.forename: María E
authors.initials: ME
authors.lastname: Steffolani
authors.affiliation: Instituto de Ciencia y Tecnología de los Alimentos Córdoba (ICYTAC), UNC-CONICET, Argentina.|Facultad de Ciencias Agropecuarias, UNC, Argentina.|Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Argentina.
authors.forename: Alberto E
authors.initials: AE
authors.lastname: León
authors.affiliation: Instituto de Ciencia y Tecnología de los Alimentos Córdoba (ICYTAC), UNC-CONICET, Argentina.|Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Argentina.|Instituto Superior de Investigación, Desarrollo y Servicios en Alimentos (ISIDSA), UNC, Argentina.
authors.forename: Pablo D
authors.initials: PD
authors.lastname: Ribotta
mesh_terms: D018554:Avena; D003296:Cooking / Q000379:methods*; D004043:Dietary Fiber; D005524:Food Technology; D007444:Inulin / Q000737:chemistry; D012212:Rheology; D013213:Starch / Q000737:chemistry; D003313:Zea mays
chemical_list: D004043:Dietary Fiber; D013213:Starch; D007444:Inulin
keywords: cookie/biscuit quality; dietary fiber; dough; rheology; sensory evaluation