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العنوان
Upscaling Extracellular Enzymes Produced by Some Fruits and Vegetables Rotting- Fungi /
المؤلف
Gad, Sabreen Mohamed Mohamed.
هيئة الاعداد
باحث / صابرين محمد محمد جاد
مشرف / نعمات عبد الجواد حسين
مناقش / يوسف احمد غرباوي
مناقش / فاتن عواد عبد العزيز
الموضوع
Plant, science. Fungi.
تاريخ النشر
2017.
عدد الصفحات
411 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم النبات
الناشر
تاريخ الإجازة
28/11/2017
مكان الإجازة
جامعة أسيوط - كلية العلوم - Plant and microbiology
الفهرس
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Abstract

Fungi can deteriorate fruits and vegetables by producing cellulases or pectinases enzymes or both. The present investigation was aimed to study the biodiversity of mycobiota associated with some rotted fruits (apple, banana, guava and orange) and vegetables (carrot, cucumber, pepper and strawberry) collected from Sohag city, Egypt, with special reference to celluloytic and pectinolytic efficiency of isolated fungi. Also, the effect of different factors (carbon and nitrogen sources, temperature, pH and incubation period) on enzymes activity was studied, as well as, using high enzyme producer strains (Aspergillus brasiliensis and Penicillium brevicompactum) in degradation of maize straw and producing compost. Finally application of prepared compost in promoting maize growth.
The following results were achieved: 1. In the present investigation, 78 species and two species varieties belonging to 24 genera were isolated from fruits (60 species + 2 varieties and 18 genera), vegetables (45 and 19) and compost experiments (16 and 5). 2. from the four fruits tested, banana harbored the highest number of genera (13) and species (38), followed by guava (12 and 33), apple (12 and 28 + 2) and orange (9 and 25). 3. from vegetables, 13 genera and 26 species were isolated, from carrot (25 species and 13 genera), cucumber (26 and 13), pepper (26 + 1 variety and 10) and strawberry (13 and 10).