| Titles |
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English :
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Studies on Submerged Culture for Mycelial Biomass Production of Wood Ears Mushroom (Auricularia polytricha)
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Arabic :
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دراسات علي ظروف التنمية المغمورة لإنتاج الكتله الحيوية لمشروم آذان الخشب
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| Abstract |
Auricularia polytricha fungus is very popular and famous mushroom in china, being newly introduced to Egypt. The present study investigates the most suitable carbon, nitrogen sources and their optimum concentrations for submerged culturing of A. polytricha. Fermentation temperature, duration, initial pH value and inoculume size were optimized to get the best DCW (dry cell weight) for the tested mushroom. Among carbon sources, glucose at 5% level stimulated the mycelial (8.9g/1) DCW. Yeast extract at 0.6% was the most favorable nitrogen source and enhanced the mycelial biomass yield to be 8.26g/1DCW. Also the highest DCW of A. polytricha was obtained by apply the fermentation at 25°C , pH value at 6.5-7, for 15 days in shaker incubator at 150 rpm. Appling the optimum levels of all determined factors in combined resulted higher DCW(10.76g/1) than the other optimum individual factor. The obtained mycelial biomass of A. polytricha contained 89.03% moisture content, 9.13% crude protein , 2.64% ether extract, 3.17% ash and 85.06% total carbohydrates. The results of this study reflect of applying the submerged culturing techniques which shorten the time (two weeks.) to get a product of such pleasant mushroom, nearly has the same nutrients like fruit bodies which need months to get it. This product could be used as raw material for other important industries.
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| Publication year |
2012
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| Pages |
33-39
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| Organization Name |
Food Technology Research Institute (FTRI)
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| serial title |
Middle East J. of Agric. Research
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| Author(s) from ARC |
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| Publication Type |
Journal
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