Distribution of aflatoxin M1 during production of sheep and goat cheeses

Vaz, Andreia; Mendonça, Álvaro; Rodrigues, Paula; Venâncio, Armando

Publication

Distribution of aflatoxin M1 during production of sheep and goat cheeses

2022Journal article

dc.contributor.author	Vaz, Andreia
dc.contributor.author	Mendonça, Álvaro
dc.contributor.author	Rodrigues, Paula
dc.contributor.author	Venâncio, Armando
dc.date.accessioned	2022-12-06T11:22:43Z
dc.date.available	2022-12-06T11:22:43Z
dc.date.issued	2022
dc.description.abstract	The occurrence of Aflatoxin M1 (AFM1) in milk results from ingestion of contaminated feed with Aflatoxin B1 by dairy animals, its conversion into AFM1, and secretion in milk. The objective of this work was to investigate AFM1 fate along goat and sheep cheese production. Cheese production was carried out using spiked milk (levels between 0.08 and 0.10 μg/L). Samples were collected throughout the production and analyzed by immunoaffinity cleanup and chromatography. Higher concentration of AFM1 was always observed in curd rather than in whey; with a mean enrichment factor of 1.8. A strong and positive correlation was established between casein content and AFM1 percentage in curd. Throughout production, a significant increase in AFM1 concentration on a wet basis was observed. In turn, on a dry basis, there was no statistically significant reduction during ripening. These observations are justified by the loss of cheese moisture and the absence of AFM1 degradation. Practical applications: The distribution of aflatoxin M1 during the production of two different cheeses was studied, where the amount of the toxin was monitored on a wet and a dry basis. On the wet basis, there was a continuous increase in concentration; which has already been reported by different authors, without clarifying whether this increase is due exclusively to the loss of moisture during milk processing. The same study on a dry basis allowed us to conclude that under the tested conditions, there is no degradation of the toxin, and the concentration increase observed previously was in fact due to the loss of humidity.	pt_PT
dc.description.sponsorship	CIMO, Grant/Award Number: UID/AGR/00690/2019; European Regional Development Fund (FEDER), Grant/Award Number: PT2020; Portuguese Foundation for Science and Technology (FCT), Grant/ Award Number: UIDB/04469/2020	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Vaz, Andreia; Mendonça, Álvaro; Rodrigues, Paula; Venâncio, Armando (2022). Distribution of aflatoxin M1 during production of sheep and goat cheeses. Journal of Food Processing and Preservation. ISSN 0145-8892. 46:11, p. 1-9	pt_PT
dc.identifier.doi	10.1111/jfpp.17093	pt_PT
dc.identifier.eissn	1745-4549
dc.identifier.issn	0145-8892
dc.identifier.uri	http://hdl.handle.net/10198/26154
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Wiley-Blackwell	pt_PT
dc.relation	Mountain Research Centre
dc.relation	Centre of Biological Engineering of the University of Minho
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Aflatoxin M1	pt_PT
dc.title	Distribution of aflatoxin M1 during production of sheep and goat cheeses	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.awardTitle	Mountain Research Centre
oaire.awardTitle	Centre of Biological Engineering of the University of Minho
oaire.awardURI	info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.awardURI	info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04469%2F2020/PT
oaire.citation.issue	11	pt_PT
oaire.citation.title	Journal of Food Processing and Preservation	pt_PT
oaire.citation.volume	46	pt_PT
oaire.fundingStream	6817 - DCRRNI ID
oaire.fundingStream	6817 - DCRRNI ID
person.familyName	Mendonça
person.familyName	Rodrigues
person.givenName	Álvaro
person.givenName	Paula
person.identifier.ciencia-id	8A1F-7B31-A119
person.identifier.ciencia-id	2312-18AE-DA42
person.identifier.orcid	0000-0002-3789-2730
person.identifier.scopus-author-id	7102639646
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	restrictedAccess	pt_PT
rcaap.type	article	pt_PT
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