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Water soluble polysaccharidic and ethanolic fractions of wild edible mushrooms: chemical composition and bioactivity evaluation.

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dc.contributor.authorVaz, Josiana A.
dc.contributor.authorTavares, Catarina
dc.contributor.authorAlmeida, Gabriela M.
dc.contributor.authorMartins, Anabela
dc.contributor.authorVasconcelos, M. Helena
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2012-08-16T09:03:57Z
dc.date.available2012-08-16T09:03:57Z
dc.date.issued2012
dc.description.abstractMushrooms have become attractive as functional foods and as a source of physiologically beneficial bioactive compounds. The huge mushrooms reservoir of Northeast Portugal must be chemically and nutritionally characterized for the benefit of the local populations and for the genetic conservation of wild macrofungi. Herein, we describe and compare the chemical constituents (phenolic compounds, macronutrients, sugars, fatty acids, tocopherols and ascorbic acid) of four wild edible mushrooms widely appreciated in gastronomy: Armillaria mellea (Vahl) P. Kumm., Calocybe gambosa (Fr.) Donk, Clitocybe odora (Fr.) P. Kumm., Coprinus comatus (O.F. Müll.) Pers. Furthermore, the antioxidant and antitumour potential of their water soluble polysaccharidic and ethanolic fractions was studied by in vitro assays: radical scavenging activity, reducing power and lipid peroxidation inhibition for antioxidant activity, and sulforhodamine B assay for cell growth inhibition C. comatus revealed the highest concentrations of sugars (43.23/100 g dry weight), PUFA (77.46%), phenolic compounds (45.02 mg/kg), tocopherols (301.03 μg/100 g) and, among all of the fractions tested, its ethanolic fraction showed the highest antioxidant activity (EC50 < 2.6 mg/mL). C. odora revealed one of the highest ascorbic acid (172.65 mg/100 g) contents and its water soluble polysaccharidic fraction showed the best antioxidant properties (EC50 < 3.6 mg/mL) among the polysaccharidic fractions. The studied samples did not cause alterations in the cell growth of four human tumour cell lines (lung, breast, gastric and colon cancer). Therefore, despite the absence of antitumour potential, the studied mushroom species could potentially be used in well-balanced diets, as a source of antioxidant compounds.por
dc.identifier.citationVaz, Josiana A.; Tavares, Catarina; Almeida, Gabriela M.; Martins, Anabela; Vasconcelos, M. Helena; Ferreira, Isabel C.F.R. (2012). Water soluble polysaccharidic and ethanolic fractions of wild edible mushrooms: chemical composition and bioactivity evaluation. In 3rd I3S Scientific Retreat IBMC/INEB/IPATIMUP. Póvoa de Varzimpor
dc.identifier.urihttp://hdl.handle.net/10198/7345
dc.language.isoengpor
dc.peerreviewedyespor
dc.titleWater soluble polysaccharidic and ethanolic fractions of wild edible mushrooms: chemical composition and bioactivity evaluation.por
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePóvoa do Varzimpor
oaire.citation.title3rd I3S Scientific Retreat IBMC/INEB/IPATIMUP, 10 e 11 de Maio de 2012por
person.familyNameVaz
person.familyNameMartins
person.familyNameFerreira
person.givenNameJosiana A.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id171B-88BA-64F5
person.identifier.ciencia-id7B18-A810-6B93
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-6989-1169
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridG-5488-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id16305323200
person.identifier.scopus-author-id7203013518
person.identifier.scopus-author-id36868826600
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication1c1a2cb9-5a36-47ba-bca0-ffcbef28df18
relation.isAuthorOfPublication383370dd-10e5-40e6-9a15-f2201fe95581
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscovery383370dd-10e5-40e6-9a15-f2201fe95581

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