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Biochemical, functional and antioxidant potential of higher fungi cultivated on agro-industrial residues. Part Ⅱ: Cultures on mixtures of spent mushroom substrates and mushroom cropping by-products

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Resources Chemicals and Materials 2024年第3期3卷 175-187页

作者： Marianna Dedousi Eirini Maria Melanouri Ilias Diamantis Seraphim Papanikolaou Panagiota Diamantopoulou Hellenic Agricultural Organization ELGO-Dimitra Institute of Technology of Agricultural Products(ITAP)Laboratory of Edible Fungi1Sof.Venizelou 14123LykovryssiAtticaGreece Agricultural University of Athens Department of Food Science and Human NutritionLaboratory of Food Microbiology and Biotechnology75 Iera Odos 11855 AthensGreece

Novel substrates consisted of different fresh agro-industrial residues,their corresponding and commercial spent mushroom substrates(*** deriving from laboratory-scale experiments and SMS deriving from industrial-scale experiments by Green Zin S.A.-SMS GZ)and Pleurotus waste(PW;stipes/mishappen mushrooms)were used in blends for a new cultivation cycle of Pleurotus ostreatus and *** mushrooms in *** impact on the biochemical properties(intra-cellular polysaccharides-IPSs,protein,lipid,total phenolic compounds-TPCs,individual carbohydrates composition of the IPSs)in the first-and second-flush whole mushrooms,pilei and stipes,as well as the fatty acids composition,the antioxidant activity(in the first-flush mushroom parts)and glucan content of stipes were *** species produced satisfactory IPSs quantities in all substrates(28.69-46.38%,w/w)and significant protein amounts(18.37-26.80%,w/w).The further SMS addition(80%,w/w instead of 40%,w/w)in the cultivation substrates affected positively the mushroom IPSs values,whereas the highest protein content was detected in mushroom’s parts cultivated on substrates consisted of fresh agro-industrial ***’s lipid content was affected differently by the various substrate combinations,with SMS presence resulting in mushrooms with a lower fat content than those produced in substrates with PW *** substrates with PW and those with coffee residue were the most favorable for TPCs *** production flushes,the nutritional value of mushrooms was comparable between them,only a slight increase in TPCs of second-flush carposomes was *** was the predominant monosaccharide of the produced IPSs,combined with a significant production of total and β-*** and PW addition had a positive impact on antioxidant activity,too.A higher quantity of lipids,TPCs and significant antioxidant activity were detected in all Pleurotus pilei than stipes,whereas the latter were rich

关键词： Pleurotus agro-industrial residues Spent mushroom substrate Stipes Pilei

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Characterization and Biological Activities of Protein-Bound Polysaccharides Produced by Cultures of Pleurotus ostreatus

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Journal of Agricultural Science and Technology(A) 2012年第11期2卷 1296-1306页

作者： Catia Salvador Maria do Rosario Martins Maria de Fatima Candelas Amin Karmali Jose Maria Arteiro Ana Teresa Caldeira Chemistry Department and Chemistry Centre of Evora University of Evora Evora 7000-671 Portugal Chemistry Department and ICAAM-Institute of Mediterranean Agricultural and Environmental Sciences University of EvoraEvora7002-554 Portugal Chemical Engineering Department and Chemical Engineering and Biotechnology Research Center Lisbon Superior EngineeringInstitute Lisboa 1950-062 Portugal

Several species of mushrooms, as Pleurotus ostreatus, have been valued as edible and medicinal resources. These mushrooms may be an important source of polysaccharides with medicinal properties as antioxidant, antitumoral, antimicrobial and immunological properties. The aim of this work was to produce and to evaluate the biological properties of protein-bound polysaccharide complexes, extra intracellular （E-PPS and I-PPS）, extracted from P. ostreatus cultures, using agricultural sunflower wastes as carbon source. Three main compounds in the E-PPS and four main compounds in the I-PPS were identified by SEC-UV-RI-HPLC. These complexes of P. ostreatus present no toxicity in Artemia salina cultures, after 24 h of incubation. Antioxidant properties of the complexes were evaluated by radical scavenging activity using DPPH method and lipid peroxidation inhibition capacity, determined by erytbsocytes hemolysis. Additionally, E-PPS and I-PPS extracts revealed capacity to mimetize superoxide dismutase and catalase enzymatic activities. The hepatoprotector effect of E-PPS extracts in Wistar rats was evaluated by AST, ALT, ALP and y-GT activities, showing capacity to reduce the liver damage induced by ethanol-administration. This hepatoprotective effect is equivalent to that observed by silymarin, a standard drug. Our results suggests that the extracts of E-PPS and I-PPS produced by P. ostreatus cultures, using agricultural sunflower wastes as main carbon source, can be used as an important source of bioactive compounds with potential medicinal value.

关键词： Protein-polysaccharides Pleurotus ostreatus edible mushrooms submerged fermentation agro-industrial residues bioactive compounds antioxidant properties hepatoprotective effect.

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