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Effect on the quality of chestnuts (Castanea sativa Miller) manually and mechanically harvested during industrial cold storage

dc.contributor.authorLema, Filipe
dc.contributor.authorAlmeida, Arlindo
dc.contributor.authorBorges, António
dc.contributor.authorRamalhosa, Elsa
dc.date.accessioned2023-03-24T14:17:44Z
dc.date.available2023-03-24T14:17:44Z
dc.date.issued2021
dc.description.abstractThe European chestnut (Castanea sativa Mill.) is a typical seasonal product with high importance in Portugal. Due to the difficulty in finding labour to harvest this fruit, machines have been used that perform the harvesting mechanically. However, during the nut's mechanical collection, small stones or other materials can also be sucked, damaging the nut's surface. These damages may affect the quality of the fruit and possibly lead to the appearance of a more significant number of rotten fruits. Currently, the presence of chestnut rot caused by the fungus Gnomoniopsis smithogilvyi (Gnomoniaceae, Diaporthales) has been reported. This study aimed to evaluate the effect on the quality of chestnuts manually and mechanically harvested during industrial cold storage for three months. Parameters such as the presence of bruises and minor cuts, the number of rotted fruits, loss of weight, total soluble solids (TSS), titratable acidity (TA) and reducing sugars were determined. The mechanical harvesting increased the frequency of bruises and small visible cuts. Moreover, in many fruits, it was observed the removal of the tuft. The number of rotted fruits did not increase along the storage time. During the three months of storage, the weight loss was never more than 10%, but it increased over time. Between manual and mechanical harvesting, no significant differences in the weight loss, TSS and TA were observed in almost all situations. The reducing sugars were less than 0.65 g glucose / 100 g d.m., being fluctuations observed over time but without a definite trend. In conclusion, mechanical harvesting cause minor damages to the chestnut surface. Still, in the physicochemical parameters evaluated, there were no significant differences between the two types of harvesting in the majority of the situations.pt_PT
dc.description.sponsorshipFCT (Portugal) [CIMO: UID/AGR/00690/2019] and PDR2020 [ValorCast Project - PDR2020- 101-032034].pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLema, Filipe; Almeida, Arlindo; Borges, António; Ramalhosa, Elsa (2021). Effect on the quality of chestnuts (Castanea sativa Miller) manually and mechanically harvested during industrial cold storage. In Margarida Vieira; Paola Pittia; Cristina L.M. Silva; Florence Dubois-Brissonnet; Rui Costa; Foteini Chrysanthopoulou (Eds.) 6th International ISEKI-Food Conference: Sustainable Development Goals in Food Systems: Challenges and Opportunities for the Future: Book of Abstracts. Online
dc.identifier.isbn978-989-9023-52-9
dc.identifier.urihttp://hdl.handle.net/10198/28043
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherISEKI - Food Associationpt_PT
dc.relationMountain Research Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectChestnutspt_PT
dc.subjectImpact injuriespt_PT
dc.titleEffect on the quality of chestnuts (Castanea sativa Miller) manually and mechanically harvested during industrial cold storagept_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.citation.conferencePlaceOnlinept_PT
oaire.citation.title6th International ISEKI-Food Conference: Sustainable Development Goals in Food Systems: Challenges and Opportunities for the Future: Book of Abstractspt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLema
person.familyNameAlmeida
person.familyNameRamalhosa
person.givenNameFilipe
person.givenNameArlindo
person.givenNameElsa
person.identifier.ciencia-idEA17-B3F7-C5FD
person.identifier.ciencia-idF91B-D395-4C34
person.identifier.ciencia-id1A1D-FC05-A05D
person.identifier.orcid0000-0002-3439-068X
person.identifier.orcid0000-0003-2724-2504
person.identifier.orcid0000-0003-2503-9705
person.identifier.scopus-author-id14120668500
person.identifier.scopus-author-id6602978189
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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relation.isAuthorOfPublication219f1dcf-2196-48d0-bbce-fbd14deacf9c
relation.isAuthorOfPublicationd74be6c0-1703-4f77-bd81-e289ec981ee3
relation.isAuthorOfPublication.latestForDiscoveryc2823342-7db5-4197-ae92-09302b8ee4ef
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