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Protein and sugar content of tubers in potato plants treated with biostimulants

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cris.virtual.author-orcid0000-0003-4113-1595
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dc.abstract.enThe use of biostimulants and cultivar selection play an important role in modern potato farming because they influence tuber yield and quality. The nutritional value and processing suitability of potato tubers are affected by their content of total protein, reducing sugars and sucrose. The aim of this study was to determine the effect of biostimulants on the content of total protein, glucose, fructose and sucrose in potato tubers (skin, flesh and whole tubers with skin), at harvest and after 5 months of storage. The experimental materials included tubers of five edible potato cultivars: Irga, Satina, Valfi, Blaue St. Galler and HB Red. Dur- ing the growing season, potato plants were treated with the following biostimulants: Asahi SL, Bio-Algeen S-90, Kelpak SL and Trifender WP. Control plants were not treated with biostimulants. The total protein content of tubers was determined by the Kjeldahl method. Simple sugars and sucrose were determined by high-performance liquid chromatography. At harvest, total protein concentration was significantly higher in purple- and red-fleshed cultivars than in cream- and yellow-fleshed cultivars. An analysis of tuber parts revealed that flesh had the highest protein content. The total protein content of tubers increased during storage. Biostimulants had no significant effect on total protein concentration in tubers at harvest or after storage. The content of simple sugars and sucrose was higher in the skin, flesh and whole tubers of purple- and red-fleshed cultivars, than in cream- and yellow-fleshed cultivars. Potato tubers with colored flesh accumulated the highest amounts of total sugars. Biostimulants, in particular Bio-Algeen S-90 and Kelpak SL, contributed to the accumulation of monosaccharides and the disaccharide in potato tubers, and, in conse- quence, total sugars. Their concentrations in potato tubers increased during storage.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Chemii
dc.contributor.authorGłosek-Sobieraj, Małgorzata
dc.contributor.authorWierzbowska, Jadwiga
dc.contributor.authorCwalina-Ambroziak, Bożena
dc.contributor.authorWaśkiewicz, Agnieszka
dc.date.access2026-01-09
dc.date.accessioned2026-01-09T19:55:49Z
dc.date.available2026-01-09T19:55:49Z
dc.date.copyright2022-12-15
dc.date.issued2022
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if1,1
dc.description.number4
dc.description.points100
dc.description.versionfinal_published
dc.description.volume62
dc.identifier.doi10.24425/jppr.2022.143227
dc.identifier.issn1427-4345
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/6698
dc.identifier.weblinkhttps://www.plantprotection.pl/Protein-and-sugar-content-of-tubers-in-potato-plants-treated-with-biostimulants,155255,0,2.html
dc.languageen
dc.relation.ispartofJournal of Plant Protection Research
dc.relation.pages370-384
dc.rightsCC-BY-NC-ND
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enbiostimulants
dc.subject.enreducing sugars
dc.subject.enSolanum tuberosum
dc.subject.ensucrose
dc.subject.entotal protein
dc.titleProtein and sugar content of tubers in potato plants treated with biostimulants
dc.typeJournalArticle
dspace.entity.typePublication