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[9001683.] رقم البحث : 9001683 - |
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Cellulose Decomposing Fungi Isolated from Beet Pulp and Caught from Cultivated Soil / vol. 9 / 2017 |
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قطاع الدراسات الزراعية / |
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Egyptian sٍugar journal / |
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اسماء فتحى محمود - مؤلف رئيسي |
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sugar technology
Sugar beet |
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Sugar beet pulp is one of the main by-products of beet sugar manufacturing. Sugar beet pulp is primarily composed of carbohydrate that may favor the presence of fungi. Seven samples of beet pulp from Dakahlia sugar factory in Egypt were collected (one sample of every fifteen days during the beet campaign 2013) and examined for the presence of cellulose decomposing fungi on beet pulp Czapek’s agar medium at 28°C. Seventeen species in addition to two species varieties belonging to 4 fungal genera were collected and identified. Also, 10 samples of dried and ground beet pulp (100 g each in nylon net bag) were buried in 10 cultivated areas in Sharkia and Dakahlia Governorates planted with 10 different crops. After 10 days, the 10 bags removed from soil and examined for the caught of cellulose decomposing fungi from soil. Seventeen species belonging to five fungal genera were isolated from these buried beet pulp samples. A total of 35 isolates of collected filamentous fungi were screened for their ability to produce cellulases. All of the tested isolates showed positive ability to produce cellulases. Most of tested fungal isolates especially those caught from soil by beet pulp possessed high producing ability of cellulase. The highly cellulase producers were belonging to Aspergillus (17 isolates), Fusarium(7), Penicillium(5) and Stemphylium (one) Mucor circinelloides (one) and Trichoderma (2). |
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