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Pre-harvest applications of pulsed light increases vitamin C, chlorophyll, carotenoids and proteins in alfalfa sprouts

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cris.virtual.author-orcid0000-0001-9832-9274
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cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
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cris.virtualsource.author-orcid36173a57-3417-4bf8-99ea-e027717d422c
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cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enThe possibility of using pulsed light (PL) pre-harvest during the cultivation of alfalfa sprouts to reduce microflora and simultaneously enhance the bioactive concentration was presented. Different fluences were compared, and the effect of PL direction on sprout quality was determined. PL application up to 12 J/cm2 per day resulted in an increased accumulation of bioactive components (vitamin C, proteins, chlorophyll, and carotenoids), in response to the stress resulting from PL emission. More interestingly, the direction of incidence was found important, with different trends observed for different bioactive components depending on whether only leaves were illuminated, or both leaves and roots were illuminated. Pulsed light directed solely towards the cotyledons (24 J/cm2) reduced the level of total microbial counts by about 0.7 log cfu/ml, and yeast and mold counts by about 1 log cfu/ml. It was found that an excessive amount of PL directed towards the roots might damage the root system, which promotes the growth of bacteria and will lower increases in the accumulation of chlorophylls, carotenoids, vitamin C, and proteins. The work will guide the development of photo-energized cultivation chambers for the production of agricultural and food products.
dc.affiliationWydział Nauk o Żywności i Żywieniu
dc.affiliation.instituteKatedra Fizyki i Biofizyki
dc.contributor.authorFiutak, Grzegorz
dc.contributor.authorMohammadi, Xanyar
dc.contributor.authorFilipczak-Fiutak, Magda
dc.contributor.authorJarzębski, Maciej
dc.contributor.authorSterczyńska, Monika
dc.contributor.authorPratap-Singh, Anubhav
dc.date.accessioned2024-10-10T10:41:05Z
dc.date.available2024-10-10T10:41:05Z
dc.date.issued2024
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0.00
dc.description.if3,9
dc.description.number1 June 2024
dc.description.points140
dc.description.volume332
dc.identifier.doi10.1016/j.scienta.2024.113200
dc.identifier.issn0304-4238
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/1817
dc.languageen
dc.relation.ispartofScientia Horticulturae
dc.relation.pagesart. 113200
dc.rightsClosedAccess
dc.sciencecloudsend
dc.subject.enphotosynthetic pigments
dc.subject.enchlorophylls
dc.subject.encarotenoids
dc.subject.entotal viable count
dc.subject.envitamin C
dc.titlePre-harvest applications of pulsed light increases vitamin C, chlorophyll, carotenoids and proteins in alfalfa sprouts
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume332