Chemical composition and biotechnological properties of a polysaccharide from the peels and antioxidative content from the pulp of Passiflora liguralis fruits

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dc.contributor.authorTommonaro, G.es_ES
dc.contributor.authorSegura Rodríguez, C.S.es_ES
dc.contributor.authorSantillana, M.es_ES
dc.contributor.authorImmirzi, B.es_ES
dc.contributor.authorDe Prisco, R.es_ES
dc.contributor.authorNicolaus, B.es_ES
dc.contributor.authorPoli, A.es_ES
dc.date.accessioned6/22/2022 13:33
dc.date.accessioned2022-09-30T16:31:38Z
dc.date.available6/22/2022 13:33
dc.date.available2022-09-30T16:31:38Z
dc.date.issued2007
dc.description.abstractA new polysaccharide with a high molecular weight (greater than 1 × 106 Da) was extracted and characterized from the peels of Passiflora liguralis (granadilla) fruits. Chemical composition of the biopolymer, performed by using a high pressure anion exchange-pulsed amperometric detector (HPAE-PAD), showed the presence of six different sugar residues: xylose, glucose, galactose, galactosamine, an unknown component, and fucose in the relative ratio of 1:0.5:0.2:0.06:0.05:trace. The optical rotation of this xyloglucan was [α]D 25°C = -186.42 (concentration of 1.4 mg/mL of H2O), and the viscosity was dependent on the concentration and pH, showing a maximum value of 1.4 η at a concentration of 3% in distilled water and a maximum value of 7.0 η in citrate buffer solution. Thermogravimetric analysis indicated that this biopolymer was very stable at high temperatures, showing a degradation temperature at 280°C. The characterization of the polysaccharide was also investigated by spectroscopic methods (1H NMR and IR) pointing out the complexity of this biopolymer and the presence of sugar residues in α-manno, α-gluco-galacto, and β-gluco-galacto configurations. The formation of a biodegradable film using this novel xyloglucan was reported, and the anticytotoxic activity of the polysaccharide was studied in a brine shrimp bioassay. Considerable antioxidant activity (Trolox equivalent antioxidant capacity (TEAC) value of 0.32 μM/mg fresh product) was noted in the lipophilic extracts of Passiflora liguralis fruits, indicating, in this fruit, an alternative source of bioactive compounds. © 2007 American Chemical Society.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.doi10.1021/jf0704615es_ES
dc.identifier.urihttps://doi.org/10.1021/jf0704615
dc.language.isoenges_ES
dc.rightsinfo:eu-repo/semantics/closedAccesses_ES
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceJournal of Agricultural and Food Chemistryes_ES
dc.subjectAgricultural and Biological Scienceses_ES
dc.subjectChemistryes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#4.01.00es_ES
dc.titleChemical composition and biotechnological properties of a polysaccharide from the peels and antioxidative content from the pulp of Passiflora liguralis fruitses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
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