title: Carbohydrate composition of peach palm (Bactris gasipaes Kunth) by-products flours.
abstract: The flours obtained from peach palm by-products are rich in dietary fiber (62-71%) and they can be used as food ingredients. The aim of this work was to investigate the carbohydrate composition of the flours processed from the residual parts (stem and median sheath) of a hearts-of-palm industry. The flours were fractionated, based on their solubility, whose monomeric compounds were determined. The fraction containing mostly cellulose (S5) was the most abundant (26-28%), followed by the sum of fractions (S2, 53, S4) extracted with alkaline solutions (21-22%). The S1 fraction contained the highest percentage of uronic acids, which characterizes the presence of pectin. Xylose and arabinose were found in high proportion in S2 and S3 fractions. The S4 and S5 fractions, rich in glucose, were the main portion of the cell wall material and correspond to the insoluble fraction of the dietary fiber.
authors.affiliation: Departamento de Tecnologia, Universidade Estadual de Maringá, Av. Ângelo Moreira da Fonseca, 1800 Umuarama, PR, Brazil. Electronic address: beatrizbolanho@yahoo.com.br.
authors.forename: Beatriz Cervejeira
authors.initials: BC
authors.lastname: Bolanho
authors.affiliation: Departamento de Engenharia de Alimentos, Universidade Estadual de Ponta Grossa, Av. Carlos Cavalcanti, 4748 Ponta Grossa, PR, Brazil. Electronic address: edgodoy@uepg.br.
authors.forename: Eliane Dalva Godoy
authors.initials: ED
authors.lastname: Danesi
authors.affiliation: Departamento de Ciência e Tecnologia de Alimentos, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, Londrina, PR, Brazil. Electronic address: beleia@uel.br.
authors.forename: Adelaide Del Pino
authors.initials: Adel P
authors.lastname: Beléia
mesh_terms: D001089:Arabinose / Q000032:analysis / Q000302:isolation & purification; D028023:Arecaceae / Q000737:chemistry* / Q000378:metabolism; D002482:Cellulose / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D004043:Dietary Fiber / Q000032:analysis; D005433:Flour / Q000032:analysis*; D009005:Monosaccharides / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification; D018547:Plant Stems / Q000737:chemistry / Q000378:metabolism; D011134:Polysaccharides / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification; D025341:Principal Component Analysis; D012995:Solubility; D014574:Uronic Acids / Q000032:analysis / Q000302:isolation & purification; D014994:Xylose / Q000032:analysis / Q000302:isolation & purification
chemical_list: D004043:Dietary Fiber; D009005:Monosaccharides; D011134:Polysaccharides; D014574:Uronic Acids; D002482:Cellulose; D014994:Xylose; D001089:Arabinose
keywords: Arabinose (PubChem CID: 66308); Cellulose; Fractionation; Fucose (PubChem CID: 17106); Galactose (PubChem CID: 6036); Glucose (PubChem CID: 5793); Hemicelluloses; Mannose (PubChem CID: 18950); Monosaccharides; Pectin