title: Extruded flaxseed meal enhances the nutritional quality of cereal-based products.
abstract: Human consumption of flaxseed is increasing due to its health benefit properties and extrusion processes can enhance its nutritional quality. Extruded flaxseed meal (EFM) obtained in a pilot plant was characterized and incorporated in flour mixes and cereal-based bars to demonstrate its nutritious usefulness. Amino acid content was not affected by extrusion and, despite lysine was the limitating amino acid, the chemical score (CS) was 83 %. Thiamin and riboflavin decreased slightly as consequence of extrusion, phytic acid did not change and trypsin inhibitor activity was undetectable. Proximate composition and nutritional quality determined by biological and chemical indexes were compared among EFM, flour mixes (FM) and cereal bars (CB). They presented high protein levels (26, 20 and 17 %, respectively), good biological value (BV) (80, 79 and 65, respectively), acceptable true protein digestibility (TD) (73, 79 and 78, respectively), and high dietary fiber (33, 20.5 and 18 %, respectively). The ratio of ω6:ω3 for CB was within the WHO/FAO recommendations. These results open a new venue for the usefulsess of nutritious/healthy extruded flaxseed flours into ready-to-eat cereal-based products with improved nutritional quality.
authors: Cátedra de Bromatología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires (UBA), Junín 956, C.P.1113, Ciudad Autónoma de Buenos Aires, Argentina.
authors: S
authors: S
authors: Giacomino
authors: E
authors: E
authors: Peñas
authors: V
authors: V
authors: Ferreyra
authors: N
authors: N
authors: Pellegrino
authors: M
authors: M
authors: Fournier
authors: N
authors: N
authors: Apro
authors: M Olivera
authors: MO
authors: Carrión
authors: J
authors: J
authors: Frias
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D004043:Dietary Fiber / Q000032:analysis; D002523:Edible Grain / Q000737:chemistry*; D019597:Flax / Q000737:chemistry*; D005433:Flour; D005504:Food Analysis; D005511:Food Handling; D009753:Nutritive Value; D010833:Phytic Acid / Q000032:analysis; D059748:Proteolysis; D051381:Rats; D017208:Rats, Wistar; D012256:Riboflavin / Q000032:analysis
chemical_list: D000596:Amino Acids; D004043:Dietary Fiber; D010833:Phytic Acid; D012256:Riboflavin
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