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The edible mushroom Laetiporus sulphureus as potential source of natural antioxidants

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2013
Authors
Klaus, Anita
Kozarski, Maja S.
Nikšić, Miomir
Jakovljević, Dragica
Todorović, Nina
Stefanoska, Ivana
Van Griensven, Leo J. L. D.
Article (Published version)
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Abstract
Hot water extract (LN), partially purified polysaccharides (LP) and hot alkali extracted polysaccharides (LNa) obtained from fruiting bodies of the wild basidiomycete Laetiporus sulphureus were examined for their antioxidant activities. LNa was the most active antioxidant, as shown by the median effective concentrations (EC50 values) of 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity (0.5 +/- 0.2 mg/ml), reducing power (4.0 +/- 0.3 mg/ml) and ferrous ion-chelating ability (1.5 +/- 0.1 mg/ml). LNa contained the highest level of alpha-glucan (17.3 +/- 1.2 g/100 g dw), whereas LP contained mostly beta-glucans (66.8 +/- 1.3 g/100 g dw). The prevalent monosaccharide in all extracts was glucose. The EC50 values of all three antioxidant activity assays were well-correlated with the alpha-glucan content. Strong and significant correlation was found between total phenolic compounds and DPPH scavenging ability and also reducing power. The three investigated extracts (at concentrations o...f 0.1-10 mg/ml) were not toxic to HTR-8/SVneo trophoblast cell line.

Keywords:
Laetiporus sulphureus / antioxidant activity / beta-glucan / polysaccharide extracts / polyphenols / cytotoxicity
Source:
International Journal of Food Sciences and Nutrition, 2013, 64, 5, 599-610
Publisher:
  • Informa Healthcare, London
Projects:
  • Develooment and utilization of novel and traditional technologies in production of competitive food products with added valued for national and global market - CREATING WEALTH FROM THE WEALTH OF SERBIA (RS-46001)
  • Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness (RS-46010)
  • Simultaneous Bioremediation and Soilification of Degraded Areas to Preserve Natural Resources of Biologically Active Substances, and Development and Production of Biomaterials and Dietetic Products (RS-43004)

DOI: 10.3109/09637486.2012.759190

ISSN: 0963-7486

PubMed: 23324060

WoS: 000321588700010

Scopus: 2-s2.0-84880372246
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1196
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IHTM

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