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Safety of yam-derived (Dioscorea rotundata) foodstuffs-chips, flakes and flour: effect of processing and post-processing conditions

2019Journal article Open access
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dc.contributor.authorOmohimi, Celestina
dc.contributor.authorPiccirillo, Clara
dc.contributor.authorFerraro, Vincenza
dc.contributor.authorRoriz, Mariana C.
dc.contributor.authorOmemu, Mobolaji A.
dc.contributor.authorSantos, Sandra M. Dias
dc.contributor.authorRessurreição, Sandrine da
dc.contributor.authorAbayomi, Louise
dc.contributor.authorAdebowale, Abdulraqaz
dc.contributor.authorVasconcelos, Marta W.
dc.contributor.authorObadina, Oluwasegun
dc.contributor.authorSanni, Lateef
dc.contributor.authorPintado, Maria M. E.
dc.date.accessioned2019-01-07T12:48:58Z
dc.date.available2019-01-07T12:48:58Z
dc.date.issued2019
dc.description.abstractThe production of yam-derived (Dioscorea rotundata) foodstuffs is mainly performed by small and medium scale processors that employ old traditional methods. This can lead to differences in quality from processor to processor, and from location to location, with consequent safety concerns. As such, the effects of processing and post-processing phases (i.e., storage, transport, etc.) on the safety of some yam-derived foodstuffs—namely chips, flakes, and flour—has been evaluated, with a focus on bacterial and fungal contamination, aflatoxins, pesticides, and heavy metals (Pb, Ni, Cd and Hg). Yams harvested and processed in Nigeria were screened, being that the country is the largest producer of the tuber, with 70–75% of the world production. Results highlighted no presence of pesticides, however, many samples showed high levels of bacterial and fungal contamination, together with heavy metal concentrations above the recommended safety levels. No trend was observed between the items considered; it was noticed, however, that samples purchased from the markets showed higher contamination levels than those freshly produced, especially regarding bacterial and aflatoxins presence. The processing stage was identified as the most critical, especially drying. Nonetheless, post-processing steps such as storage and handling at the point of sale also contributed for chemical contamination, such as aflatoxin and heavy metals. The results suggested that both the processing and post-processing phases have an impact on the safety of yam chips, flakes, and flour.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationOmohimi, C., Piccirillo, C., Ferraro, V., Roriz, M. C., Omemu, M. A., Santos, S. M. D., … Pintado, M. M. E. (2019). Safety of Yam-Derived (Dioscorea rotundata) Foodstuffs—Chips, Flakes and Flour: Effect of Processing and Post-Processing Conditions. Foods, 8(1), 12. https://doi.org/10.3390/foods8010012pt_PT
dc.identifier.doi10.3390/foods8010012pt_PT
dc.identifier.eid85063284167
dc.identifier.issn2304-8158
dc.identifier.pmcPMC6352045
dc.identifier.pmid30609871
dc.identifier.urihttp://hdl.handle.net/10400.14/26621
dc.identifier.wos000457154000011
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationGains from Losses of Root and Tuber Crops
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectYampt_PT
dc.subjectProcessingpt_PT
dc.subjectPost-processingpt_PT
dc.subjectBacterial contaminationpt_PT
dc.subjectAflatoxinpt_PT
dc.subjectHeavy metalspt_PT
dc.subjectPesticidept_PT
dc.titleSafety of yam-derived (Dioscorea rotundata) foodstuffs-chips, flakes and flour: effect of processing and post-processing conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGains from Losses of Root and Tuber Crops
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F50016%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F86483%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/289843/EU
oaire.citation.issue1
oaire.citation.titleFoodspt_PT
oaire.citation.volume8
oaire.fundingStream5876
oaire.fundingStreamSFRH
oaire.fundingStreamFP7
person.familyNamePiccirillo
person.familyNameFerraro
person.familyNameRoriz
person.familyNameda Ressurreição
person.familyNameAdebowale
person.familyNameVasconcelos
person.familyNamePintado
person.givenNameClara
person.givenNameVincenza
person.givenNameMariana
person.givenNameSandrine
person.givenNameAbdul-Rasaq
person.givenNameMarta
person.givenNameMaria Manuela
person.identifier962551
person.identifier263033
person.identifier187207
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person.identifier.ciencia-id391B-75ED-6983
person.identifier.ciencia-idE713-C010-67DB
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0002-6339-716X
person.identifier.orcid0000-0003-4815-0297
person.identifier.orcid0000-0002-5365-8186
person.identifier.orcid0000-0002-1596-8722
person.identifier.orcid0000-0003-1464-7190
person.identifier.orcid0000-0002-5110-7006
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridN-8206-2013
person.identifier.ridK-8153-2014
person.identifier.ridI-8166-2013
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id36450563900
person.identifier.scopus-author-id14627797100
person.identifier.scopus-author-id7004483898
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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