A new two-phase kinetic model of sporulation of Clonostachys rosea in a new solid-state fermentation reactor |
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Authors: | Yuan Yuan Zhang Jun Hong Liu Yuan ming Zhou Yu Yan Zhang Ying Liu Ting Yun Gong Jing Wang |
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Institution: | 1. Department of Pharmaceutics, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao, Shandong 266042, China;2. Department of Biochemistry and Molecular Biology, Qingdao University Medical College, Qingdao University, Qingdao, Shandong 266021, China;3. College of Chemistry and Pharmaceutical Sciences, Qingdao Agriculture University, Qingdao, Shandong 266109, China |
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Abstract: | A new two-phase kinetic model of sporulation of Clonostachys rosea in a new solid-state fermentation (SSF) reactor was proposed. The model including exponential and logistic models was applied to study the simultaneous effect of temperature, initial moisture content, medium thickness and surface porosity of the plastic membrane on C. rosea sporulation. The model fits experimental data very well and allows accurate predictions of spore production. The maximum spore production achieved 3.360 × 1010 (spores/gDM), about 10 times greater than that in traditional SSF reactor(data not shown). The new reactor can provide two times sporulation surface area. Moisture content can be adjusted by changing the surface porosity to meet the spore production. Two mixings carried out during fermentation makes medium loose and results in a mass of new sporulation surface area. Therefore, the new SSF reactor would have great potential for application in bulk spore production of fungal biocontrol agents. |
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Keywords: | Sporulation Kinetic model Solid-state fermentation Biological control agent |
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