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UV-C radiation increases vitamin D2 content in Pleurotus ostreatus

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dc.contributor.authorCardoso, Rossana V.C.
dc.contributor.authorFernandes, Ângela
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorGonzález-Paramás, Ana María
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2021-10-18T15:28:09Z
dc.date.available2021-10-18T15:28:09Z
dc.date.issued2019
dc.description.abstractMushrooms have been traditionally recognized for their nutritional and medicinal value, and countless investigations have reported highly nutritious content as well as medicinal properties such as anticancer, antimicrobial, hypocholesterolemic, antioxidant, among others. These properties are attributed to bioactive compounds such as ergosterol (precursor of vitamin D2) and other steroids, phenolic compounds, and vitamins. Vitamin D2, in particular, plays an important role in many human metabolic processes. Mushrooms are the only non-animal food source of vitamin D2, which is also formed during UV exposure1. Since dietary sources are scarce, vitamin D deficiency can cause serious health problems; studies of vitamin D have received considerable attention in recent years, supported by the growing number of deficiency reports, e.g. rickets, osteoporosis, multiple sclerosis and cardiovascular disease, among others 2. The present work reports the effectiveness of UV-C radiation on increasing the content of vitamin D2 in sliced Pleurotus ostreatus (Jacq. ex Fr.) P. Kumm. samples. The irradiation was performed in a UV chamber at the intensity 0 (non-irradiated), 200, 800, 3200 mJ/cm2 and different exposure times: 0, 2, 6 and 10 min. Vitamin D2 was determined using high performance liquid chromatography coupled to a UV detector 2,3. It was verified a significant (p<0.050) interaction (exposure time x UVC) among factors, indicating that the effect of each UVC dose was modulated by exposure time and vice versa. Nonetheless, it is obvious that the application of UV-C radiation induced a clear increase in the quantity of vitamin D2, most likely due to the conversion of some of the ergosterol content naturally present in these mushrooms. In what concerns, exposure time, the adequate choice would be 6 min (125 μg/g DW of vitamin D2), as no significant increases were attained with the maximum assayed time (10 min). On the other hand, and despite the statistically significant differences, the advised UV-C dose would be 200 mJ/cm, particularly considering that this option would be less expensive, without relevantly compromising the increase in vitamin D2.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2019), and R.V.C. Cardoso grant (SFRH/BD/137436/2018). L. Barros, J.C.M. Barreira, and A. Fernandes also thank the national funding by FCT - Foundation for Science and Technology, P.I. through the institutional scientific employment program-contract. Funding: This work is funded by the European Regional Development Fund (ERDF) through the Regional Operational Program North 2020, within the scope of Project Mobilizador Norte-01-0247-FEDER-024479: ValorNatural®.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCardoso, Rossana V.C.; Fernandes, Ângela; Barreira, João C.M.; Gonzaléz-Paramás, Ana M.; Barros, Lillian; Ferreira, Isabel C.F.R. (2019). UV-C radiation increases vitamin D2 content in Pleurotus ostreatus. In 11º Congresso Nacional de Cromatografia. Costa da Caparica. ISBN 978-989-8124-29-6pt_PT
dc.identifier.issn978-989-8124-29-6
dc.identifier.urihttp://hdl.handle.net/10198/24059
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationMountain Research Centre
dc.relationMushrooms as a source of high value bioactive molecules: conversion of ergosterol into vitamin D2, extraction optimization, refinement and a case study using bakery/pastry products
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectUV-C radiationpt_PT
dc.subjectPleurotus ostreatuspt_PT
dc.titleUV-C radiation increases vitamin D2 content in Pleurotus ostreatuspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Centre
oaire.awardTitleMushrooms as a source of high value bioactive molecules: conversion of ergosterol into vitamin D2, extraction optimization, refinement and a case study using bakery/pastry products
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F137436%2F2018/PT
oaire.citation.conferencePlaceCaparica, Portugalpt_PT
oaire.citation.title11th Encontro Nacional de Cromatografiapt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
person.familyNameCardoso
person.familyNameFernandes
person.familyNameBarreira
person.familyNameBarros
person.familyNameFerreira
person.givenNameRossana V.C.
person.givenNameÂngela
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
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person.identifier.orcid0000-0002-6870-0391
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person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridD-8269-2013
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person.identifier.scopus-author-id57194701579
person.identifier.scopus-author-id54895546900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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