http://nopr.niscair.res.in/handle/123456789/4771 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/4865 Title: Process strategies for cephalosporin C fermentation <br/> <br/>Authors: Srivastava, Pradeep; Mishra, Punita; Kundu, Subir <br/> <br/>Abstract: Cephalosporin C (CPC), a β-lactam antibiotic, is starting molecule for industrial production of semi synthetic cephalosporins. CPC fermentation has been carried out in Air Lift Reactor (indigenously made up of borosilicate glass) in different fermentation modes i.e., batch and fed batch modes using a mold <i style="">Acremonium chrysogenum </i>(synn. <i style="">Cephalosporium acremonium</i>). A definite correlation exists between the antibiotic productivity and flow rate of supplementary feed. Fed batch process was shown to be more efficient than the batch one, and the process in which the lowest supplementary feed flow rate was used resulted in significantly higher antibiotic production. <br/> <br/>Page(s): 599-602 Wed, 28 Jun 2006 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/4864 Title: Iron oxidation studies with immobilized cells of <i style="">Acidithiobacillus ferrooxidans</i> <br/> <br/>Authors: Das, Trupti; Chaudhury, Gautam Roy <br/> <br/>Abstract: Biooxidation of iron is considered to be one of the major steps in various industrial processes like the bioleaching of low-grade sulfide ores and desulfurisation of coal. The eco-friendly phenomenon is also widely exploited for the treatment of acid mine drainage and removal of hydrogen sulfide from gaseous effluents. In the present work, iron oxidation in batch as well as continuous mode has been studied using immobilized <i>Acidithiobacillus ferrooxidans.</i> Enhanced oxidation rate is achieved in a continuous mode in the column reactor and the immobilized cells are found to be very effective for the oxidation studies. <br/> <br/>Page(s): 594-598 Wed, 28 Jun 2006 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/4863 Title: Artificial neural network for solving paper industry problems: A review <br/> <br/>Authors: Rajesh, Kumar; Ray, A K <br/> <br/>Abstract: The review focuses on applications of artificial neural networks (ANNs) in various subsystems of pulp and paper making processes. Some applications are pertinent to modeling of pulping, bleaching and energy conservation process while others are related to control of refining, washing of brown stock, combustion of black liquor, lime kiln operation, grade changes and quality control. A general algorithm is also developed to demonstrate how to solve the complex problem using ANN for paper mill subsystems<i style="">.</i> <br/> <br/>Page(s): 565-573 Wed, 28 Jun 2006 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/4862 Title: Advances in sensors based on conducting polymers <br/> <br/>Authors: Gupta, Neetika; Sharma, Shalini; Mir, Irfan Ahmad; Kumar, D <br/> <br/>Abstract: Conducting polymers with a blend of interesting optical and mechanical properties can be used in situations where inorganic materials are not suitable. Synthetic capabilities as well as fabrication techniques have been developed to such an extent that molecular electronic devices based on conducting polymers can be designed, marking evolution of a sophisticated technology in the field of microelectronics. These electro-active conducting polymers cover a broad spectrum of applications from solid-state technology to biotechnology and sensor technology. Present paper addresses the various issues on sensors for chemical and biochemical species. <br/> <br/>Page(s): 549-557 Wed, 28 Jun 2006 22:58:59 GMT