Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia

Detalhes bibliográficos
Autor(a) principal: Herchi,Wahid
Data de Publicação: 2015
Outros Autores: Bahashwan,Saleh, Sakouhi,Faouzi, Boukhchina,Sadok
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Food Science and Technology (Campinas)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100175
Resumo: The objective of this research was to determine the effect of five years on physico-chemical characteristics and antioxidant activity of flaxseed hull oils. Oil and protein on flaxseed hull varied between 20.15 and 22.56 and 17.45 and 19.14, respectively. The albumin fraction dominated the seed hull protein composition (44 - 47%). Flaxseed hull oils showed significantly high unsaturated to saturated fatty acid ratios (6.61 - 8.36) and calculated oxidizability (Cox) values (10.88 - 12.30). The physiochemical parameters determined included saponification value (SV) (174 -182 mg KOH/g), unsaponifiable matter (UM) (1.32 - 1.64%), peroxide value (PV) (1.70 - 2.20 mequiv/kg), Oxidation value (OV) (4.40 - 5.90) and oil stability (1.10 - 1.42 h). The highest content of total phenolic acids and total tocopherols were recorded on hull sample collected in 2008. Flavanoid content ranged from 11 to 19 mg/100 g oil. Antioxidant activity differed significantly; the greatest inhibition (61.38%) was for the hull sample collected in 2008.
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spelling Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisiaflaxseed hull oilantioxidant activitychemical compositionThe objective of this research was to determine the effect of five years on physico-chemical characteristics and antioxidant activity of flaxseed hull oils. Oil and protein on flaxseed hull varied between 20.15 and 22.56 and 17.45 and 19.14, respectively. The albumin fraction dominated the seed hull protein composition (44 - 47%). Flaxseed hull oils showed significantly high unsaturated to saturated fatty acid ratios (6.61 - 8.36) and calculated oxidizability (Cox) values (10.88 - 12.30). The physiochemical parameters determined included saponification value (SV) (174 -182 mg KOH/g), unsaponifiable matter (UM) (1.32 - 1.64%), peroxide value (PV) (1.70 - 2.20 mequiv/kg), Oxidation value (OV) (4.40 - 5.90) and oil stability (1.10 - 1.42 h). The highest content of total phenolic acids and total tocopherols were recorded on hull sample collected in 2008. Flavanoid content ranged from 11 to 19 mg/100 g oil. Antioxidant activity differed significantly; the greatest inhibition (61.38%) was for the hull sample collected in 2008.Sociedade Brasileira de Ciência e Tecnologia de Alimentos2015-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100175Food Science and Technology v.35 n.1 2015reponame:Food Science and Technology (Campinas)instname:Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)instacron:SBCTA10.1590/1678-457X.6579info:eu-repo/semantics/openAccessHerchi,WahidBahashwan,SalehSakouhi,FaouziBoukhchina,Sadokeng2015-05-06T00:00:00Zoai:scielo:S0101-20612015000100175Revistahttp://www.scielo.br/ctaONGhttps://old.scielo.br/oai/scielo-oai.php||revista@sbcta.org.br1678-457X0101-2061opendoar:2015-05-06T00:00Food Science and Technology (Campinas) - Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)false
dc.title.none.fl_str_mv Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
title Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
spellingShingle Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
Herchi,Wahid
flaxseed hull oil
antioxidant activity
chemical composition
title_short Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
title_full Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
title_fullStr Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
title_full_unstemmed Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
title_sort Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia
author Herchi,Wahid
author_facet Herchi,Wahid
Bahashwan,Saleh
Sakouhi,Faouzi
Boukhchina,Sadok
author_role author
author2 Bahashwan,Saleh
Sakouhi,Faouzi
Boukhchina,Sadok
author2_role author
author
author
dc.contributor.author.fl_str_mv Herchi,Wahid
Bahashwan,Saleh
Sakouhi,Faouzi
Boukhchina,Sadok
dc.subject.por.fl_str_mv flaxseed hull oil
antioxidant activity
chemical composition
topic flaxseed hull oil
antioxidant activity
chemical composition
description The objective of this research was to determine the effect of five years on physico-chemical characteristics and antioxidant activity of flaxseed hull oils. Oil and protein on flaxseed hull varied between 20.15 and 22.56 and 17.45 and 19.14, respectively. The albumin fraction dominated the seed hull protein composition (44 - 47%). Flaxseed hull oils showed significantly high unsaturated to saturated fatty acid ratios (6.61 - 8.36) and calculated oxidizability (Cox) values (10.88 - 12.30). The physiochemical parameters determined included saponification value (SV) (174 -182 mg KOH/g), unsaponifiable matter (UM) (1.32 - 1.64%), peroxide value (PV) (1.70 - 2.20 mequiv/kg), Oxidation value (OV) (4.40 - 5.90) and oil stability (1.10 - 1.42 h). The highest content of total phenolic acids and total tocopherols were recorded on hull sample collected in 2008. Flavanoid content ranged from 11 to 19 mg/100 g oil. Antioxidant activity differed significantly; the greatest inhibition (61.38%) was for the hull sample collected in 2008.
publishDate 2015
dc.date.none.fl_str_mv 2015-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100175
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000100175
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-457X.6579
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência e Tecnologia de Alimentos
publisher.none.fl_str_mv Sociedade Brasileira de Ciência e Tecnologia de Alimentos
dc.source.none.fl_str_mv Food Science and Technology v.35 n.1 2015
reponame:Food Science and Technology (Campinas)
instname:Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)
instacron:SBCTA
instname_str Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)
instacron_str SBCTA
institution SBCTA
reponame_str Food Science and Technology (Campinas)
collection Food Science and Technology (Campinas)
repository.name.fl_str_mv Food Science and Technology (Campinas) - Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)
repository.mail.fl_str_mv ||revista@sbcta.org.br
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