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Valorization of rapeseed meal: influence of ethanol antinutrients removal on protein extractability, amino acid composition and fractional profile

2020Journal article Open access
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dc.contributor.authorKalaydzhiev, Hristo
dc.contributor.authorIvanova, Petya
dc.contributor.authorStoyanova, Magdalena
dc.contributor.authorPavlov, Atanas
dc.contributor.authorRustad, Turid
dc.contributor.authorSilva, Cristina L. M.
dc.contributor.authorChalova, Vesela I.
dc.date.accessioned2020-03-11T17:32:29Z
dc.date.available2020-03-11T17:32:29Z
dc.date.issued2020
dc.description.abstractThe production of rapeseed oil leads to generation of large quantities of rapeseed meal as a by-product. To increase the applicability of the rapeseed meal in feed and food industries, the content of antinutrient compounds is often reduced by treatment with ethanol. The aim of the study was to evaluate the influence of ethanol pre-treatment of the rapeseed meal on protein extractability, amino acid composition and fractional profile. The ethanol treatment of the rapeseed meal significantly increased the protein content from 37.4 to 42.3% and reduced the lipid concentration from 1.9 to 1.1%. Approximately 4- and 14-fold reductions of the phenols and glucosinolate contents were achieved respectively. Protein yield, however, was diminished from 26.4 to 23.6%. A stronger decrease of the protein yield, from 47.8 to 26.4%, was caused by processing of the rape seeds to rapeseed meal. The process resulted in the reduction of lysine content, while further ethanol treatment of the rapeseed meal affected more amino acids, both essential (threonine, phenylalanine) and non-essential (alanine, tyrosine, arginine, histidine). Comparative fractional protein profiles of rape seeds, rapeseed meal and ethanol treated rapeseed meal exhibited differences in both composition of the fractions and the relative quantity of the proteins. Data suggested that the treatment of the rapeseed meal with ethanol impacted protein solubility, amino acid composition and protein fractional profile. This knowledge is valuable when ethanol treated rapeseed meal is used either as a protein feed additive or as a source for generation of protein-rich ingredients with specific nutritive value and functionality.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.citationKalaydzhiev, H., Ivanova, P., Stoyanova, M., Pavlov, A., Rustad, T., Silva, C. L., Chalova, V. I. (2019). Valorization of rapeseed meal: influence of ethanol antinutrients removal on protein extractability, amino acid composition and fractional profile. Waste and Biomass Valorizationpt_PT
dc.identifier.doi10.1007/s12649-018-00553-1pt_PT
dc.identifier.eid85059583044
dc.identifier.eissn1877-265X
dc.identifier.issn1877-2641
dc.identifier.urihttp://hdl.handle.net/10400.14/29909
dc.identifier.wos000531470600031
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.subjectEthanol treatmentpt_PT
dc.subjectAmino acid compositionpt_PT
dc.subjectProtein extractabilitypt_PT
dc.subjectProtein fractional profilept_PT
dc.subjectRapeseed mealpt_PT
dc.titleValorization of rapeseed meal: influence of ethanol antinutrients removal on protein extractability, amino acid composition and fractional profilept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleWaste and Biomass Valorizationpt_PT
person.familyNameSilva
person.familyNameChalova
person.givenNameCristina
person.givenNameVesela
person.identifier1473674
person.identifier.ciencia-id6611-634A-132C
person.identifier.orcid0000-0002-0495-3955
person.identifier.orcid0000-0001-5139-5389
person.identifier.ridA-3568-2013
person.identifier.scopus-author-id7201387397
person.identifier.scopus-author-id8282388500
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4e2903de-0679-4cb1-981e-10de14c0c995
relation.isAuthorOfPublicationa7681c5f-cdd3-41d1-a7b6-26c9ac9c8977
relation.isAuthorOfPublication.latestForDiscovery4e2903de-0679-4cb1-981e-10de14c0c995

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