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Characterization of packed-bed in the downcomer of a concentric internal-loop airlift bioreactor
(2022-04-01)
A packed-bed basket containing corn cob powder was used for the adaptation of a concentric-tube airlift reactor for enzymatic reactions. The bed was inserted in the downcomer region of the bioreactor generating a decrease ...
Kinetics of gas-phase hydrolysis of ethyl acetate catalyzed by immobilized lipase
(Humana Press IncTotowaEUA, 2007)
Applications of immobilized lipases in enzymatic reactors: A review
(2022-03-01)
Lipases are efficient biocatalysts with numerous applications in different industrial sectors, such as pharmaceutical, food, and fine chemistry industries. Enzyme immobilization further extends the applications of lipases ...
Produção de coquetel enzimático rico em endoglucanase termoestável em biorreator de leito empacotado e sua aplicação na obtenção de nanocelulose
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2021-10-21)
Nanocellulose is a bioproduct with high added value obtained through the conversion of lignocellulosic biomass. Due to characteristics such as high aspect ratio, low toxicity, thermal stability and high crystallinity, ...
Continuous-flow system for horseradish peroxidase enzyme assay comprising a packed-column, an amperometric detector and a rotating bioreactor
(Elsevier Science, 2005-03)
The roles of chemical kinetics and mass transfer in three types of bioreactors (packed-column reactors, rotating disk bioreactors and amperometric detector), used with continuous-flow sample/reagent(s) processing, are ...
Enhanced metal recovery by efficient agglomeration of precipitates in an up-flow fixed-bed bioreactor
(2021-07-15)
In this study, a single-stage up-flow fixed-bed sulfidogenic bioreactor was operated for 288 days (six stages), treating mine-impacted water at different concentrations of nickel (Ni), cobalt (Co) and other associated ...
Strategies for scaling-up packed-bed bioreactors for solid-state fermentation: The case of cellulolytic enzymes production by a thermophilic fungus
(2019-04-01)
Mathematical models can be useful to predict the behavior of particulate systems, as it is the case of packed-bed bioreactors (PBBs) used for solid-state fermentation (SSF). The models also simplify the processes scale-up, ...
Biodegradation of vegetable residues by polygalacturonase-agar using a trickle-bed bioreactor
(Institution of Chemical Engineers, 2018-09)
Bacterial pectinases degrade the pectic substances present in plant tissues and particularly, polygalacturonases catalyze the hydrolysis of α-(1,4) glycosidic bonds linking D-galacturonic acid units. In this study, ...
Continuous-flow/stopped-flow system incorporating a rotating bioreactor based on a double redox catalytic cycle and electron transfer mediated by osmium complexes. Application in the determination of extremely low levels of glucose
(Taylor & Francis, 2002-02)
The high sensitivity that can be attained by enzymatic amplification via substrate cycling and mediated by the redox polymer [Os(bpy)2ClPyCH2NHpoly( allylamine) (Os-PAA), has been verified by on-line interfacing of a ...