Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XIX
Written by Corina BUBUEANU, Gabriela POPA, Lucia PIRVU
In the context of a worldwide growing population there is a need for renewable biological resources for food and animal feed, safe and healthy, as well as materials, energy and other products. Thus, an important and sustainable use of renewable resources has become one of the major goals of bio-economic strategy at the national and European levels. Quality, food safety and human health are some of the major concerns of Romania. Due to considerable genetic resources and remarkable biological quality, mushrooms are currently considered functional foods with important nutritional and therapeutic qualities. Nationally, 90% of the mushroom production is covered by Agaricus bisporus species (champignon), being consumed mainly in urban areas. At the same time in rural areas is harvested from spontaneous mycoflora and consumed, mainly Agaricus campestris species. These two species are related, belonging to the same Agaricaeae family. Nutritional and therapeutic important properties of these species are given by their bioactive metabolites including polysaccharides, proteins, dietary fibres, polyphenolic compounds and other biomolecules. In this paper is presented comparative qualitative (HPTLC) and quantitative (spectrophotometric) chemical composition in polyphenolic compounds and the scavenger potential of free radical DPPH of the two species. The comparative analysis is made for alcoholic and hydroalcoholic extracts of the two species. The results shows the differences and similarities in terms of composition in polyphenolic compounds, dependence between chemical composition and antioxidant potential and also the importance of the solvent used to obtain the extracts. Thus, this study contributes to understanding the importance of the valorisation of indigenous natural resources potential, respectively of the species Agaricus campestris.
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