Hydrothermal treatment to remove tannins in wholegrains sorghum, milled grains and flour

dc.creatorAcquisgrana, María del Rosario
dc.creatorGómez Pamies, Laura Cecilia
dc.creatorBenítez, Elisa Inés
dc.date2022-08-12T14:51:32Z
dc.date2022-08-12T14:51:32Z
dc.date2019-10-30
dc.date.accessioned2023-08-31T14:37:05Z
dc.date.available2023-08-31T14:37:05Z
dc.identifier2573-1661
dc.identifier2573-167X
dc.identifierhttp://hdl.handle.net/20.500.12272/6842
dc.identifier10.22158/fsns.v3n4p122
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8548429
dc.descriptionPigmented sorghum with high content of tannins were studied in this work. Tannins bind to proteins and reduce their availability. A hydrothermal treatment was carried out to reduce tannins. A control sample of non-pigmented pericarp variety was used. After the treatment, grains were milled, and a part was separated for wholegrain flour elaboration. Several determinations were done after treatment: tannins (T), total antioxidant capacity (TAC) and total polyphenols (TPP) content. TPP and TAC in wholegrain pigmented sorghum were 3.9 to 12.3 and 2.3 to 3.5 times higher than those of non-pigmentedsorghum, respectively. In all sorghum varieties the extractions of TPP decreased with milling. TAC in flour increased 3.3 times the initial value for non-pigmentedsorghum, whereas for the other sorghum samples it increased slightly from 1.1 to 1.3 times the initial value. In flours there was a noticeable reduction in T, with respect to the wholegrain. It was possible to conclude that the hydrothermal treatment allowed lower levels of tannins than those established in the Codex for both wholegrain sorghum and flour. This reduction makes it possible to obtain flour which may be suitable for food processing and the recovery of tannins for other uses.
dc.descriptionFil: Acquisgrana, María del Rosario. Universidad Tecnológica Nacional, Facultad Regional Resistencia. Grupo de Investigación Química Teórica Experimental; Argentina.
dc.descriptionFil: Gómez Pamies, Laura Cecilia. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura. IQUIBA-NEA. CONICET; Argentina.
dc.descriptionFil: Benítez, Elisa Inés. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Grupo de Investigación Química Teórica Experimental; Argentina.
dc.descriptionPeer Reviewed
dc.formatplain
dc.languageeng
dc.languageeng
dc.rightsopenAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsAtribución-NoComercial-CompartirIgual 4.0 Internacional
dc.rightsAcceso Abierto
dc.subjectsteeping
dc.subjectannealing
dc.subjectmilling
dc.subjectsorghum
dc.subjecttannin
dc.titleHydrothermal treatment to remove tannins in wholegrains sorghum, milled grains and flour
dc.typeinfo:eu-repo/semantics/article
dc.typepublisherVersion


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