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Continuous neomycin production by immobilized cells of Streptomyces marinensis NUV-5 in an airlift bioreactor
Affiliation:1. Department of Botany, Arunachal University of Studies, Namsai, Arunachal Pradesh, India;2. Faculty of Agriculture Sciences, Arunachal University of Studies, Namsai, Arunachal Pradesh, India;3. Biotechnology Group, Biotechnological Science & Technology Division, CSIR-North East Institute of Science & Technology, Jorhat, Assam, India;4. Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, P. R. China;1. Programa de Biologia Marinha e Ambientes Costeiros, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil;2. Programa Dinâmica dos Oceanos e da Terra, Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ 24210-346, Brazil;1. School of Environmental and Life Sciences, University of Newcastle, Brush Rd, Ourimbah, NSW 2258, Australia;2. Food and Nutrition Flagship, CSIRO, North Ryde, NSW 2113, Australia;3. Teaching and Research Unit, Central Coast Local Health District, PO Box 361, Gosford 2250, Australia;4. School of Biomedical Sciences and Pharmacy, University of Newcastle, Brush Rd, Ourimbah, NSW 2258, Australia
Abstract:Neomycin production by free and calcium alginate immobilized cells was investigated in an airlift reactor. The average volumetric productivity with continuous fermentation (72.97 mg/l/h) was greater than with free cells (45.05 mg/l/h). The total neomycin produced with continuous fermentation was 62% greater than with that of free cells. Immobilized Streptomyces particles showed a half-life of 42 days during continuous fermentation under airlift conditions.
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