Topic
Bioreactor
About: Bioreactor is a research topic. Over the lifetime, 9980 publications have been published within this topic receiving 192690 citations. The topic is also known as: bioreactors.
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TL;DR: The temperature gradients caused by heat transfer resistances were reduced considerably with corresponding increases in enzyme activity and the problem of heat accumulation during the course of fermentation has been alleviated to a considerable extent using a packed-column bioreactor with forced aeration.
77 citations
TL;DR: The steady state CP removal efficiency of more than 91% was observed up to the inlet load of 300mgL(-1)d(-1).
77 citations
TL;DR: The feasibility and limitations of adding limited amounts of oxygen or nitrate (or nitrite) to biologically (or chemically) oxidise sulphide to control sulphide generated during anaerobic treatment of S-containing wastewaters are evaluated.
Abstract: Sulphide generated during anaerobic treatment of S-containing wastewaters represents an environmental problem. Adding limited amounts of oxygen or nitrate (or nitrite) to biologically (or chemically) oxidise sulphide forms a simple process-level strategy to control this problem. This short review evaluates the feasibility and limitations of this strategy on the basis of the results of bioreactor studies.
77 citations
TL;DR: It was found that the former azo dye was significantly less toxic to methanogenic sludge than the latter one, and neither of the azo dyes was biodegradable under aerobic conditions but both dyes were readily decolourised and slowly mineralised in anaerobic environments.
77 citations
TL;DR: Changes in the pH of the semi-continuous bioreactor culture medium between pH 4.5 and pH 7.0 influenced protonema differentiation; however it did not negatively affect the growth rate compared to uncontrolled pH.
Abstract: The use of the moss Physcomitrella patens as a production system for heterologous proteins requires highly standardised culture conditions. For this purpose a semi-continuous photoautotrophic bioreactor culture of Physcomitrella was established. This culture grew stably for 7 weeks in a 5-l bioreactor with a dilution rate of 0.22/day. Enrichment of the air for aeration in a batch bioreactor culture with 2% (v/v) CO 2 resulted in an in- crease in the specific growth rate to 0.57/day. Changes in the pH of the semi-continuous bioreactor culture medi- um between pH 4.5 and pH 7.0 influenced protonema differentiation; however it did not negatively affect the growth rate compared to uncontrolled pH. The advanta- ges of Physcomitrella as a system for the production of heterologous proteins in plants are discussed.
77 citations