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Acid liquefaction of potato (Solanum tuberosum) and sweet potato (Ipomoea batatas) cultivars peels – Pre-screening of antioxidant Aactivity total phenolic and sugar contents

2017-01Journal article Open access
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dc.contributor.authorMateus, Maria Margarida
dc.contributor.authorVentura, Patrícia
dc.contributor.authorRego, Andreia
dc.contributor.authorMotta, Carla
dc.contributor.authorCastanheira, Isabel
dc.contributor.authorBordado, João Moura
dc.contributor.authordos Santos, Rui Galhano
dc.date.accessioned2018-02-26T15:19:28Z
dc.date.available2018-02-26T15:19:28Z
dc.date.issued2017-01
dc.description.abstractIn the present study, the liquefaction of both regular and sweet potato peels was conducted to investigate the bio-oil produced, the sugar and total phenolic content, and antioxidant activity. Initially, the bio-oil obtained after liquefaction was partitioned into two different fractions, a hydrophilic fraction and the other consisted of the portion that contained the apolar compounds. Afterward, the samples of the whole bio-oil, aqueous extract, and organic phase of both cultivars were analyzed by attenuated total reflection- Fourier Transform infrared (ATR-FTIR) spectroscopy, hydroxyl number, and acid value. This was done in combination with assessment of the sugar and total phenolic contents and antioxidant activity. The samples demonstrated a considerable content of phenolic moieties in their composition. The antioxidant activity, which was assessed by the 2,2-diphenyl-1-picrylhydrazyl radical method, revealed that the antioxidants of the liquefied products and its extracts were generally better than that of butylated hydroxytoluene. Glucose, sucrose, and maltose were identified and quantified within all of the samples.pt_PT
dc.description.sponsorshipRui Galhano dos Santos would like to acknowledge FCT-Fundação para a Ciência e Tecnologia for the Postdoctoral Grant SFRH/BPD/105662/2015 that supported this work.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBioResources.2017;12(1):1463-78. doi:10.15376/biores.12.1.1463-1478pt_PT
dc.identifier.doi10.15376/biores.12.1.1463-1478pt_PT
dc.identifier.issn1930-2126
dc.identifier.urihttp://hdl.handle.net/10400.18/5065
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherDepartment of Forest Biomaterials, College of Natural Resources, NC State Universitypt_PT
dc.relation.publisherversionhttp://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1463_Mateus_Acid_Liquefaction_Potato_Antioxidant_Sugarpt_PT
dc.subjectPotatopt_PT
dc.subjectSweet potatopt_PT
dc.subjectPeelpt_PT
dc.subjectLiquefactionpt_PT
dc.subjectAntioxidant Activitypt_PT
dc.subjectTotal Phenolic Contentpt_PT
dc.subjectATR-FTIRpt_PT
dc.subjectComposição dos Alimentospt_PT
dc.titleAcid liquefaction of potato (Solanum tuberosum) and sweet potato (Ipomoea batatas) cultivars peels – Pre-screening of antioxidant Aactivity total phenolic and sugar contentspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1478pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1463pt_PT
oaire.citation.titleBioResourcespt_PT
oaire.citation.volume12pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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