Porosity change during solid-state fermentation of Aspergillus niger in laboratory scale packed bed bioreactors

Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICHEC05_205

تاریخ نمایه سازی: 7 بهمن 1386

Abstract:

Substrates become the packing particles in most solid-state bioreactors and they affect some of the operational parameters like porosity and pressure drop in packed bed bioreactors. In solid-state fermentations, the volume of packing particles changes during the process due to the utilization of substrate and production of biomass by microorganisms. Packing density will change as a result of these alterations. In this research, porosity of the packed bed was measured during solid-state fermentation of wheat bran using Raimbault laboratory scale packed bed bioreactors. Analyses have shown the increasing trend of these changes despite of pressure drop increment.

Keywords:

solid-state fermentation , laboratory scale packed bed bioreactor , porosity , particle density

Authors

Karimi

Biotechnology Group, Chemical Engineering Department, Faculty of Engineering, Tarbiat Modarres University, Tehran, Iran

Shojaosadati

Biotechnology Group, Chemical Engineering Department, Faculty of Engineering, Tarbiat Modarres University, Tehran, Iran

Hejazi

Biotechnology Group, Chemical Engineering Department, Faculty of Engineering, Tarbiat Modarres University, Tehran, Iran

Vasheghani Farahani

Biotechnology Group, Chemical Engineering Department, Faculty of Engineering, Tarbiat Modarres University, Tehran, Iran

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