title: Novel fiber-rich lentil flours as snack-type functional foods: an extrusion cooking effect on bioactive compounds.
abstract: Novel snack-type functional foods based on extruded lentil flours could convey the related health benefit of their bioactive compounds, provide a gluten-free alternative to consumers, and potentially increase the consumption of pulses. Extrusion treatment promoted an increase in galactopinitol, ciceritol, raffinose, stachyose and total α-galactoside content, in most lentil flours. As α-galactosides may act as prebiotics, they could convey beneficial effects to human and monogastric animals. Conversely, extrusion significantly (p < 0.05) reduced the inositol hexaphosphate content to less phosphorylated phytates (inositol pentaphosphate and inositol tetraphosphate), which provide health effects. The gluten-free formulation (control formulation #3) presented the highest significant (p < 0.05) drop in the inositol hexaphosphate of 14.7-fold decrease, but had a large increase in inositol pentaphosphate, due to extrusion processing. These two results are desirable in the finished product. Extrusion also caused a significant (p < 0.05) reduction in the trypsin content and completely inactivated lectin, in all processed samples.
authors.affiliation: Dpto. Tecnología de Alimentos, SGIT-INIA, Ctra. de la Coruña Km 7.5, E-28040, Madrid, Spain. patricia.morales@farm.ucm.es.
authors.forename: P
authors.initials: P
authors.lastname: Morales
authors.forename: J De J
authors.initials: Jde J
authors.lastname: Berrios
authors.forename: A
authors.initials: A
authors.lastname: Varela
authors.forename: C
authors.initials: C
authors.lastname: Burbano
authors.forename: C
authors.initials: C
authors.lastname: Cuadrado
authors.forename: M
authors.initials: M
authors.lastname: Muzquiz
authors.forename: M M
authors.initials: MM
authors.lastname: Pedrosa
mesh_terms: D003296:Cooking / Q000379:methods*; D004043:Dietary Fiber / Q000032:analysis*; D005433:Flour / Q000032:analysis*; D055951:Functional Food / Q000032:analysis*; D007295:Inositol Phosphates / Q000032:analysis; D027806:Lens Plant / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D062410:Snacks
chemical_list: D004043:Dietary Fiber; D007295:Inositol Phosphates; C013571:inositol pentaphosphate