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Impact of gamma irradiation on hydrophilic and lipophilic compounds of Cochlospermum angolensis Welw. (borututu)

2014Conference object Open access
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dc.contributor.authorPereira, Carla
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2015-02-23T12:03:52Z
dc.date.available2015-02-23T12:03:52Z
dc.date.issued2014
dc.description.abstractBorututu (Cochlospermum angolensis Welw.) is a widespread tree in Angola well-known for its beneficial effects on the treatment of liver diseases and on the prophylaxis of malaria [2,3]. During the processing and storage, it can be easily exposed to contamination that may be responsible for microbial deterioration or insect infestation, compromising its quality, shelf life, and efficiency [4]. Herein, we investigated the effect of gamma irradiation, one of the most promising decontamination methods for plant materials, at different doses (1 and 10 kGy) on borututu dried barks hydrophilic (free sugars and organic acids) and lipophilic (tocopherols and fatty acids) compounds analyzed by chromatographic methods. In general, 1 kGy was not enough to preserve sugars content, where it was verified a decrease in fructose, glucose, sucrose, and trehalose; but with 10 kGy, the sample showed the highest amount of these individual sugars and the highest total sugars content (8.63 g/100 g). Regarding to organic acids, it was possible to verify that the irradiation did not significantly affect these compounds in the assessed samples, which showed the presence of oxalic, malic, shikimic, citric and fumaric acids in similar amounts, with higher oxalic, malic and citric acids content. Twenty-one different fatty acids were quantified in all the samples with prevalence of saturated fatty acids (SFA) and considerable percentages of polyunsaturated fatty acids (PUFA). Among the three samples, the sample irradiated at 1 kGy gave slightly lower percentage of PUFA (32.75%) and SFA (43.32%), while control and sample irradiated at 10 kGy revealed quite similar amounts. No significant differences between the MUFA percentages of the studied samples were observed. The four vitamers of tocopherols were found in all the samples, with the prevalence of β-tocopherol; the highest total tocopherols content was observed in the irradiated samples (both with 1 kGy and 10 kGy with 331.97 mg/100 g and 336.72 mg/100 g, respectively). With the exception of δ-tocopherol, the amount of the different isoforms was generally higher in the irradiated samples. Thus, irradiation can be signed out as a suitable technique for preservation of borututu dried barks bioactive compounds.por
dc.description.sponsorshipThe authors are grateful to PRODER nº 53514, AROMAP, for financial support of the work, to Mrs. Clarinda Paixão, from Américo Duarte Paixão Lda, for samples providing and to FCT (Portugal) for financial support (CIMO PEst-OE/AGR/UI0690/2011, C. Pereira BIC grant and L. Barros contract “Compromisso para a Ciência 2008”).por
dc.identifier.citationPereira, Carla; Antonio, Amilcar L.; Cabo Verde, Sandra; Barros, Lillian; Ferreira, Isabel C.F.R. (2014). Impact of gamma irradiation on hydrophilic and lipophilic compounds of Cochlospermum angolensis Welw. (borututu). In International Symposium on Food Safety and Quality: Applications of Nuclear and Related Techniques. Vienapor
dc.identifier.urihttp://hdl.handle.net/10198/11664
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherIAEA - International Atomic Energy Agencypor
dc.relationPRODER 53514, AROMAP
dc.relationStrategic Project - UI 690 - 2011-2012
dc.subjectCochlospermum angolensis Welw. (borututu)por
dc.subjectGamma irradiationpor
dc.subjectHydrophilic compoundspor
dc.subjectLipophilic compoundspor
dc.titleImpact of gamma irradiation on hydrophilic and lipophilic compounds of Cochlospermum angolensis Welw. (borututu)por
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.citation.conferencePlaceViena, Áustriapor
oaire.citation.titleInternational Symposium on Food Safety and Quality: Applications of Nuclear and Related Techniquespor
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePereira
person.familyNameAntonio
person.familyNameBarros
person.familyNameFerreira
person.givenNameCarla
person.givenNameAmilcar L.
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier1415151
person.identifier469085
person.identifier144781
person.identifier.ciencia-idEF10-2739-2B70
person.identifier.ciencia-id1014-5259-DE86
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0003-0093-771X
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridK-1629-2016
person.identifier.ridJ-1960-2014
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id55627876424
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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