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Sandra Aparecida Furlan - One of the best experts on this subject based on the ideXlab platform.
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evaluation of Pleurotus ostreatus and Pleurotus sajor caju nutritional characteristics when cultivated in different lignocellulosic wastes
Food Chemistry, 2004Co-Authors: M Bonatti, P Karnopp, Hugo Moreira Soares, Sandra Aparecida FurlanAbstract:Fungi of Pleurotus genus present a high content of proteins and vitamins and low content of fat. Based on these facts, this work aimed to evaluate some nutritional characteristics of fruiting bodies of Pleurotus ostreatus and Pleurotus sajor-caju after the first harvest, using rice straw and banana straw as substrates. Both species presented a higher content of ash in the rice straw substrate (5.86% average) than in the banana straw (5.36%). P. sajor-caju CCB 019 showed higher moisture and fibre content when cultivated in rice straw (88.08% and 9.60%, respectively) than in banana straw (83.17% and 7.60%, respectively). The other parameters were not influenced by the cultivation substrate. The protein content (from 1.54% to 3.10%) of Pleurotus fresh fruiting bodies proved to be similar to, or even higher than, the values observed in various vegetables but lower than the protein contents of eggs, meat and cheese.
M Bonatti - One of the best experts on this subject based on the ideXlab platform.
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evaluation of Pleurotus ostreatus and Pleurotus sajor caju nutritional characteristics when cultivated in different lignocellulosic wastes
Food Chemistry, 2004Co-Authors: M Bonatti, P Karnopp, Hugo Moreira Soares, Sandra Aparecida FurlanAbstract:Fungi of Pleurotus genus present a high content of proteins and vitamins and low content of fat. Based on these facts, this work aimed to evaluate some nutritional characteristics of fruiting bodies of Pleurotus ostreatus and Pleurotus sajor-caju after the first harvest, using rice straw and banana straw as substrates. Both species presented a higher content of ash in the rice straw substrate (5.86% average) than in the banana straw (5.36%). P. sajor-caju CCB 019 showed higher moisture and fibre content when cultivated in rice straw (88.08% and 9.60%, respectively) than in banana straw (83.17% and 7.60%, respectively). The other parameters were not influenced by the cultivation substrate. The protein content (from 1.54% to 3.10%) of Pleurotus fresh fruiting bodies proved to be similar to, or even higher than, the values observed in various vegetables but lower than the protein contents of eggs, meat and cheese.
M Eyini - One of the best experts on this subject based on the ideXlab platform.
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production of ligninolytic enzymes during solid state fermentation of coffee pulp by selected fungi
2012Co-Authors: K Parani, M EyiniAbstract:In our study, Pleurotus eous and Chaetomium globosum the peak enzyme values (5.53 IU/ml; 2.6 IU/ml respectively) were observed on the 20 th day, whereas in Ganodermalucidum, the enzyme activity steadily increased till the 30 th day (3.6 IU/ml) followed by a steady decline thereafter. In coculture experiments, the maximum laccase activity (8.8 IU/ml) was shown by Pleurotus flabellatus + Pleurotus eous on the 20 th day of biodegradation. The highest peroxidase enzyme activity was observed in coffee pulp colonized by Phanerochaete chrysosporium monoculture (3.1 IU/ml) on the 30 th day after inoculation followed by Pleurotus flabellatus monoculture which showed the maximum 2.83 IU/ml of peroxidase activity on 40 th day of biodegradation. Aspergillus terreus showed very low peroxidase activity, while peroxidase activity of Chaetomium globosum on 30 th day (2.3 IU/ml) was on par with the 40 th day activity of Fomes badius. Significant increase in peroxidase activity over the respective monocultures was observed in all the white rot + white rot dual culture combinations and in Pleurotus flabellatus + Chaetomium globosum (3.6 IU/ml) dual culture.
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effect of co fungal treatment on biodegradation of coffee pulp waste in solid state fermentation
2010Co-Authors: K Parani, M EyiniAbstract:The ability of seven fungal strains viz., Phanerochaete chrysosporium, Pleurotus eous, Pleurotus flabellatus, Ganoderma lucidum, Fomes badius, Chaetomium globosum, Aspergillus terreus to decrease the cellulose, hemicellulose content and to enhance in the highest amount of reducing sugars using coffee pulp substrate was assessed. In monoculture experiments, viz., Phanerochaete chrysosporium, Pleurotus eous, Ganoderma lucidum and Chaetomium globosum showed a cellulose loss of more than 50% of the original content in 30 days, while Pleurotus eous and Chaetomium globosum monocultures degraded 53.7% of hemicellulose during the experimental period of 40 days. In coculture experiments, Pleurotus flabellatus with Pleurotus eous and Phanerochaete chrysosporium combinations resulted in the maximum cellulose loss of 84 % and 81%; hemicellulose loss of 62.5 to 68.7 % respectively in 40 days of degradation and simultaneously these cocultures showed an enhancement in the reducing sugar content (9.18 % and 9.64% dry wt. from the initial value of 3.2% dry wt.) on the 30 th day of degradation as compared to the monoculture experiments, indicating
Edgardo Albertó - One of the best experts on this subject based on the ideXlab platform.
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Search for new naturally occurring strains of Pleurotus to improve yields. Pleurotus albidus as a novel proposed species for mushroom production
Revista iberoamericana de micologia, 2011Co-Authors: Bernardo E. Lechner, Edgardo AlbertóAbstract:Abstract Background The species of genus Pleurotus are worldwide cultivated. Aims To evaluate growth, yield production and morphological variations of fruiting bodies obtained from the cultivation of fourteen naturally occurring Pleurotus strains isolated from Argentina. Methods The strains growth was tested at different temperatures on Nobles’ medium. Substrates assayed were: supplemented Salix sawdust, supplemented and non supplemented wheat straw. The species studied were Pleurotus albidus, Pleurotus cystidiosus, Pleurotus djamor, Pleurotus ostreatus and Pleurotus pulmonarius. Results The maximum rate growth was reached by strains of P. pulmonarius, P. albidus, and P. ostreatus. No relationship was found when optimal mycelium growth, incubation time and yields were compared. The highest yield was obtained with P. albidus on wheat straw (biological efficiency 171.3%) which overcame in 82% the yield obtained for the commercial strain in the same substrate. When morphological variations were analyzed for each species, significant differences were found among strains. It was also possible to find a naturally occurring strain of P. ostreatus with better biological efficiency than the commercial strain assayed. Conclusions We propose the study of naturally occurring strains as a useful practice to improve yields of species of Pleurotus. Due to the high biological efficiency obtained we propose P. albidus as a new species for commercial production.
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Miscellaneous notes on Pleurotus
Persoonia, 2002Co-Authors: Edgardo Albertó, Ronald H. Petersen, Karen W. Hughes, Bernardo E. LechnerAbstract:The paper takes up four points: 1) A previously unnamed intersterility group in Pleurotus (ISG XIII) has been identified as P. albidus, which fruits from Central America to central Argentina. The species is genetically isolated and phylogenetically it is placed in the ‘P. ostreatus’ group of monomitic Pleurotus basidiomata. 2) The distributional range of P. abieticola is extended to far northwestern Russia and northern China. 3) A partial nomenclator is furnished for P. djamor 4) The use of the term ‘dimitic’ is discussed as it pertains to Pleurotus.
Georgios I. Zervakis - One of the best experts on this subject based on the ideXlab platform.
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Biodegradation and detoxification of olive mill wastewater by selected strains of the mushroom genera Ganoderma and Pleurotus
Chemosphere, 2012Co-Authors: Spyridon Ntougias, Petr Baldrian, Constantinos Ehaliotis, F. Nerud, Theodoros Antoniou, Věra Merhautová, Georgios I. ZervakisAbstract:Thirty-nine white-rot fungi belonging to nine species of Agaricomycotina (Basidiomycota) were initially screened for their ability to decrease olive-mill wastewater (OMW) phenolics. Four strains of Ganoderma australe, Ganoderma carnosum, Pleurotus eryngii and Pleurotus ostreatus, were selected and further examined for key-aspects of the OMW biodegradation process. Fungal growth in OMW-containing batch cultures resulted in significant decolorization (by 40-46% and 60-65% for Ganoderma and Pleurotus spp. respectively) and reduction of phenolics (by 64-67% and 74-81% for Ganoderma and Pleurotus spp. respectively). COD decrease was less pronounced (12-29%). Cress-seeds germination increased by 30-40% when OMW was treated by Pleurotus strains. Toxicity expressed as inhibition of Aliivibrio fischeri luminescence was reduced in fungal-treated OMW samples by approximately 5-15 times compared to the control. As regards the pertinent enzyme activities, laccase and Mn-independent peroxidase were detected for Ganoderma spp. during the entire incubation period. In contrast, Pleurotus spp. did not exhibit any enzyme activities at early growth stages; instead, high laccase (five times greater than those of Ganoderma spp.) and Mn peroxidases activities were determined at the end of treatment. OMW decolorization by Ganoderma strains was strongly correlated to the reduction of phenolics, whereas P. eryngii laccase activity was correlated with the effluent's decolorization.
