Journal
CARBOHYDRATE POLYMERS
Volume 87, Issue 1, Pages 368-376Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.07.063
Keywords
Pleurotus pulmonarius; Submerged culture; Carbon source; Nutritional value; Exopolysaccharide production
Categories
Funding
- CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
- Fundacao Araucaria
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For many years mushrooms have been consumed and appreciated by their nutritional value, and medicinal properties. The traditional mushroom cultivation takes too long and the macrofungi biotechnology has not been explored in its full potential yet. The goal of this work was to observe if different carbon sources could improve the yield and diversify fungi nutrient composition in submerged culture. Pleurotus pulmonarius mycelia and exopolysacharide productions were evaluated using glucose, galactose, xylose and arabinose. The mycelia yield varied depending on the culture medium, and galactose showed to be the best carbon source to produce EPS. Samples that showed the highest protein contents were grown with xylose (19.44%) and arabinose (26.05%). Furthermore, the biomass cultivated with these carbohydrates and with galactose showed five essential amino acids. All cultured biomass showed low lipid contents (similar to 1%), being composed mainly of unsaturated fatty acids. All EPS fractions showed as main structures glucans and mannogalactans. (C) 2011 Elsevier Ltd. All rights reserved.
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