title: Changes in nonnutritional factors and antioxidant activity during germination of nonconventional legumes.
abstract: The present study describes the effects of germination on nonnutritional factors and antioxidant activity in the nonconventional legumes Vigna unguiculata (cowpea), Canavalia ensiformis (jack bean), Lablab purpureus (dolichos), and Stizolobium niveum (mucuna). Protease inhibitors and lectins were detected in raw legumes and were significantly decreased during the germination. Regarding total and individual inositol phosphates (IP5-IP3), important reductions of IP6 and high increases in the rest of inositol phosphates were also detected during this process. In addition, total phenols, catechins, and proanthocyanidins increased, accompanied by an overall rise of antioxidant activity (79.6 μmol of Trolox/g of DW in the case of mucuna). Germination has been shown to be a very effective process to reduce nonnutritional factors and increase bioactive phenolic compounds and antioxidant activities of these nonconventional legumes. For this reason, they could be used as ingredients to obtain high-value legume flours for food formulation.
authors.affiliation: Instituto de Investigación de Ciencias de la Alimentación (CIAL), Facultad de Ciencias, Universidad Autónoma de Madrid, C/Nicolás Cabrera 9, Campus de Cantoblanco, 28049 Madrid, Spain.
authors.forename: Yolanda
authors.initials: Y
authors.lastname: Aguilera
authors.forename: María Felicia
authors.initials: MF
authors.lastname: Díaz
authors.forename: Tania
authors.initials: T
authors.lastname: Jiménez
authors.forename: Vanesa
authors.initials: V
authors.lastname: Benítez
authors.forename: Teresa
authors.initials: T
authors.lastname: Herrera
authors.forename: Carmen
authors.initials: C
authors.lastname: Cuadrado
authors.forename: Mercedes
authors.initials: M
authors.lastname: Martín-Pedrosa
authors.forename: María A
authors.initials: MA
authors.lastname: Martín-Cabrejas
mesh_terms: D000975:Antioxidants / Q000032:analysis*; D007887:Fabaceae / Q000737:chemistry* / Q000145:classification / Q000254:growth & development; D018525:Germination; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000032:analysis*
chemical_list: D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts