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Artykuły w czasopismach na temat "Pleurotus tuberregium"

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Kolawole, F. L., M. A. Balogun, O. R. Karim, A. O. Muhammad, and H. O. Sanni-Olayiwola. "Effect of Pleurotus tuberregium sclerotium on chemical, antimicrobial and sensory properties of packaged tomato paste." Agrosearch 20, no. 1 (2020): 69–80. http://dx.doi.org/10.4314/agrosh.v20i1.7s.

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Tomato (Solanum lycopersicum) is one of the most widely consumed fresh vegetables in the world. Due to its low shelf-life, it is processed into paste with added chemical preservatives. Pleurotus tuberregium (P.t.s) is a good source of bioactive compounds effective against microbial growth, in addition to its load of other nutrients. In this study, the physicochemical, microbial, antioxidant activity and sensory properties of packaged tomato paste supplemented with Pleurotus tuberregium sclerotium flour were investigated using standard methods. The tomato pastes and Pleurotus tuberregium sclerotium flour were mixed in ratios of 100:0, 95:5 and 90:10 after which they were stored in low-density polyethylene and plastic containers at ambient temperature. There was a haphazard decrease in the fungal count of the supplemented samples during storage. A progressive increase in antioxidant activity at different inhibition levels was observed, with the samples packaged in plastic having the highest value at 100mg/ml titration. The DPPH value range obtained for (Day 0), (Day 4) and (Day7) were 4.7 - 49.9%, 50.2 -53.8% and 50.0% - 52.2%, respectively. A slight decrease in vitamins and minerals composition of treated samples as compared to the control was evident after storage period. Moderate addition of 5 to 10% Pleurotus tuberregium sclerotium flour is effective in improving the physicochemical properties, vitamins and minerals content, antioxidant activity, sensory properties and microbial stability of the paste stored in plastic container.
 Keywords: Tomato paste, Pleurotus tuberregium sclerotium, low density polyethylene, plastic container, chemical composition
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Hibbett, D. S., and R. G. Thorn. "Nematode-Trapping in Pleurotus tuberregium." Mycologia 86, no. 5 (1994): 696. http://dx.doi.org/10.2307/3760542.

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ENAGBONMA, B. J., S. EKAYE, P. TAWARI-FUFEYIN, and O. OSEMWEGIE. "HISTO-AMELIORATIVE EFFECT OF PLEUROTUS TUBERREGIUM AGAINST LEAD INDUCED HEART, SPLEEN AND LOWER GUT DAMAGE IN ALBINO RAT." Nigerian Journal of Life Sciences (ISSN: 2276-7029) 5, no. 1 (2022): 74–84. http://dx.doi.org/10.52417/njls.v5i1.210.

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This study evaluates ameliorative effect of Pleurotus tuberregium on the effects of lead (Pb) using different concentrations of Pleurotus tuberregium /growers mash feed mixture in 90 Albino rats divided into six groups with three replicates (with 5 rats per group) for 21days pre-experimental stage for proper acclimatization. There after all the experimental groups were exposed to 0.1 g/l of lead daily for 21days. At the end of exposure period, lead salt was discontinued for 21and 42days post-experimental stage. Tissues of heart, spleen and lower gut were then collected and subsequently analyzed for the structural changes at every 21days interval. The tissues of the pre-experimental stages showed normal tissues as those of the control except in the lower gut which showed ileal mucosa with chronic inflammatory cell infiltration and muscularis propria. However, the experimental groups, showed observable damages to the tissues of heart (with transmural oedoma and myocardial degeneration, interstitial haemorrhage and coronary vascular hypertrophy), spleen(with focal activated follicles and sinus hyperplasia.) and lower gut (have ileal mucosa with focal atrophy and normal muscularis propria) which improved in the post experimental stages after 21 and 42 days with increased Pleurotus tuberregium content in the feed. The results of this study demonstrated that P .tuberregium may ameliorate lead toxicity in heart, spleen and lower gut tissues
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Isikhuemhen, Omoanghe S., Jean-Marc Moncalvo, Frantisek Nerud, and Rytas Vilgalys. "Mating compatibility and phylogeography in Pleurotus tuberregium." Mycological Research 104, no. 6 (2000): 732–37. http://dx.doi.org/10.1017/s0953756299001926.

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Musadiq Oladimeji Usman, Ogechi Ozioma Anyanwu, and Innocent Oghale Ajawobu. "Proximate composition and heavy metal content of Pleurotus tuberregium mushroom grown on different substrates in (Aba) Nigeria." GSC Biological and Pharmaceutical Sciences 20, no. 3 (2022): 213–22. http://dx.doi.org/10.30574/gscbps.2022.20.3.0330.

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Mushrooms have been widely used as food and food supplements in Nigeria and other countries of the world for millennia. They are highly nutritious so they contain good quality carbohydrates, proteins, vitamins and minerals. This study determined the proximate, the effects of some substrates (best medium) on the yield and the heavy metal content of mushrooms of Pleurotus tuberregium (Fr.) Sing., grown in the laboratory. Four different substrates were used in the experiment to grow the mushrooms namely: topsoil, sawdust, riversand, and mixture of riversand and sawdust respectively. The quality of the fruit body produced was measured with the use of ruler and vernier calipers. Some heavy metals (Cd, Cr and Pb) were analyzed using Atomic Absorption Spectrophotometer. The parameters measured were: number of fruiting bodies, height of stipe, fresh weight, diameter of pileus and diameter of stipe. The result of the experiment on production of mushroom revealed that mushrooms on riversand substrate had the highest mean stipe height, the widest mean pileus and the significantly (p<0.05) highest yield. Nutritional parameters were measured and it was found that highest crude fiber content was found in the mushroom grown in mixture of riversand and sawdust substrate; mushrooms on riversand substrate had the highest carbohydrate percentage content and ash content was highest in Pleurotus tuberregium mushroom grown on topsoil substrate. The contents of Cd, Cr and Pb were all below the detection limit of the instrumentation for Pleurotus tuberregium mushroom grown on all substrates. From this study, the choice of substrate for the growth of mushroom for human and industrial use should be considered to enhance yield and prevent exposure to heavy metal contaminants.
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Ikhajiagbe, Beckley, Kingsley Enerijiofi, and Paul Umendu. "Mycorestoration of crude oil polluted soil using Pleurotus tuberregium." Studia Universitatis Babeş-Bolyai Biologia 66, no. 1 (2021): 73–84. http://dx.doi.org/10.24193/subbbiol.2021.1.02.

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Crude oil contamination is known to cause unwholesome damage to man, his environment comprising of soil, air and water bodies as well as other forms of life. This study determined the effect of crude oil polluted soils on the composition of different microorganisms and plants and the growth of Pleurotus tuberregium. Oil polluted soils in bowls were amended with sawdust from Brachystegia nigerica as substrate. Fruiting bodies and the diameter of the mushroom cap were found to increase with increasing weeks of exposure to oil as against the control which had no fruiting bodies throughout the experiment. Pepperomia pellucida was found to be the predominant weed (n = 20), followed by Asystasia gangetica (n = 11). The bacterial and fungal counts were higher at the oil polluted soil attached to sclerotia than the control. The growth of Pleurotus tuberregium in the polluted soil samples showed its ability to degrade and utilize hydrocarbon as the source of carbon and energy, thereby remediating the contaminated soil environment. This work has shown that the fungus has bioremediation and pollution control capacity.
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Musadiq, Oladimeji Usman, Ozioma Anyanwu Ogechi, Chidi Nnorom Innocent, and Oghale Ajawobu Innocent. "Proximate composition and heavy metal content of Pleurotus tuberregium mushroom grown on different substrates in (Aba) Nigeria." GSC Biological and Pharmaceutical Sciences 20, no. 3 (2022): 213–22. https://doi.org/10.5281/zenodo.7142490.

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Mushrooms have been widely used as food and food supplements in Nigeria and other countries of the world for millennia. They are highly nutritious so they contain good quality carbohydrates, proteins, vitamins and minerals. This study determined the proximate, the effects of some substrates (best medium) on the yield and the heavy metal content of mushrooms of&nbsp;<em>Pleurotus tuberregium&nbsp;</em>(Fr.) Sing., grown in the laboratory. Four different substrates were used in the experiment to grow the mushrooms namely: topsoil, sawdust, riversand, and mixture of riversand and sawdust respectively. The quality of the fruit body produced was measured with the use of ruler and vernier calipers. Some heavy metals (Cd, Cr and Pb) were analyzed using Atomic Absorption Spectrophotometer. The parameters measured were: number of fruiting bodies, height of stipe, fresh weight, diameter of pileus and diameter of stipe. The result of the experiment on production of mushroom revealed that mushrooms on riversand substrate had the highest mean stipe height, the widest mean pileus and the significantly (p&lt;0.05) highest yield. Nutritional parameters were measured and it was found that highest crude fiber content was found in the mushroom grown in mixture of riversand and sawdust substrate; mushrooms on riversand substrate had the highest carbohydrate percentage content and ash content was highest in&nbsp;<em>Pleurotus tuberregium&nbsp;</em>mushroom grown on topsoil substrate. The contents of Cd, Cr and Pb were all below the detection limit of the instrumentation for&nbsp;<em>Pleurotus tuberregium&nbsp;</em>mushroom grown on all substrates. From this study, the choice of substrate for the growth of mushroom for human and industrial use should be considered to enhance yield and prevent exposure to heavy metal contaminants.&nbsp;
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Ogbonna, Ogbuabor Alphonsus, and Igwe Mathew Chibunna. "Heavy Metal Contamination of Pleurotus Tuberregium Sclerotia (Osu) Consumed in Enugu, South East Nigeria." Scholars Journal of Applied Medical Sciences 10, no. 8 (2022): 1241–43. http://dx.doi.org/10.36347/sjams.2022.v10i08.012.

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Heavy metal contamination of food is a global public health problem especially in developing countries. The WHO 2015 report on global burden of food contamination stated that an estimated 600 million people are affected resulting in 420,000 deaths annually with children under 5 years of age constituting 40% of burden and 125,000 deaths annually. The present study was aimed at determining the concentrations of Nickel (Ni), Cadmium (Cd), Lead (Pb) and Chromium (Cr) in some samples of wild type pleurotus tuberregium sclerotia consumed in Enugu, Southeast Nigeria. Heavy metal concentrations were determined using Atomic Absorption Spectrometer (AAS 240FS) Varian, Varian Inc, Japan. The range for concentration of Nickel was (3.29+0.63-3.67+0.00), Cd (0.002+0.01-0.005+0.0), Pb(0.04+0.03)-0.07+0.02) and Cr(0.46+0.26-1.0+0.62),ppm respectively. These are within the WHO tolerable concentrations of Ni, Cd, Pb and Cr in food. These findings shows that pleurotus tuberregium sclerotia consumed in Enugu has lower concentrations of heavy metals compared to the WHO recommended values.
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Maryrose Chikaosolu, Okafor, and Okigbo Raphael Nnajiofor. "Evaluation of Three Organic Agricultural Wastes as Substrates for Cultivation of Mushroom (Pleurotus Tuberregium Fr.)." International Journal of Advanced Multidisciplinary Research and Studies 4, no. 3 (2024): 1318–24. http://dx.doi.org/10.62225/2583049x.2024.4.3.2940.

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Evaluation of three organic agricultural wastes as substrates for cultivation of mushroom (Pleurotus tuberregium Fr.) was investigated in this study. Pleurotus tuberregium was cultivated using three substrates viz 80% saw dust and 20% cassava peels (A), 80% saw dust and 20% yam peels (B) and 80% saw dust and 20% rice bran (C) to determine the substrate with highest growth and yield. The methods used were processing of the organic wastes, bagging, sterilization, inoculation of the spawn, incubation, cropping, watering and harvesting. All treatments for the experiment were laid out using a Completely Randomized Design (CRD) with the three treatments replicated four times. Means were analyzed statistically using (ANOVA) to test for significance. Means were separated using Duncan’s New Multiple Range Test (DNMRT) using Statistical Analysis System (SAS) software. The result revealed that there were significant differences (P &lt; 0.05) in the stipe girth of the mushroom under different substrates at 2.433 ± 0 .60a for substrates A, 2.883 ± 0.85b for substrate B and 3.850 ± 0.86c for substrates C. There was no significant difference (P &gt; 0.05) in the stipe height between substrate A and substrate B but showed significant difference in substrate C at 7.033 ± 0.95b. The pileus girth showed significant difference (p &lt;0.05) in substrates C at 22.804 ± 1.57b and no significant difference in substrate A and Substrate B. The study revealed that though there were growth in all the three substrates but substrate C gave highest growth parameters and yield.
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Ayodele, S. M., and O. J. Ojoghoro. "Salt Stress Effects on the Vegetative Growth of Pleurotus tuberregium (FR) Sing." Journal of Biological Sciences 7, no. 7 (2007): 1278–81. http://dx.doi.org/10.3923/jbs.2007.1278.1281.

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Rozprawy doktorskie na temat "Pleurotus tuberregium"

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Hsu, Ming-Chih, and 許明智. "Studies on the exopolysaccharides from submerged culture of Pleurotus tuberregium induces apoptosis in SW620 colon cancer cell line." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/31710779823423458165.

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碩士<br>國立陽明大學<br>生化暨分子生物研究所<br>99<br>Colon cancer represents a major cause of cancer related morbidity and mortality. To reduce this tremendous health burden, new approaches have been directed toward extremes of the disease spectrum centering on strategies for colon cancer prevention and therapy. Treatment of SW620 cells with 3BN-L resulted in activation of the caspase 3 and cleavage of poly ADP-ribose polymerase (PARP); whereas, the expression of Bcl-xL were decreased markedly. The expressions of G2/M phase transition proteins - cyclin B1, Cdc25c and CDK1 also down regulation. 3BNL-induced, dose-dependent induction of apoptosis was accompanied by sustained phosphorylation of JNK and p38 MAPK, as well as generation of the ROS. NAC administration, a scavenger of ROS, reversed 3BNL-induced apoptosis. Furthermore, 3BN-L (180 mg/kg/d i.p.) reduced the growth of SW620 xenografts in nude mice by ~50 % at 4 weeks compared with PBS groups (p &amp;lt; 0.01). These results leads us to speculate that 3BN-L may play an apoptotic cascade by activation of the JNK/p38 pathway and induction of ROS production, providing a proposed mechanism for 3BN-L- induced cell death in human colon cancer cells.
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