Effects of betaine supplementation on L-threonine fed-batch fermentation by Escherichia coli.

abstract：:Oxygen supply is crucial in industrial application of microbial systems, such as Corynebacterium glutamicum, but oxygen transfer is often neglected in early strain characterizations, typically done under aerobic conditions. In this work, a new procedure for oxygen transfer screening is presented, assessing the impact ...

journal_title：Bioprocess and biosystems engineering

authors： Käß F,Prasad A,Tillack J,Moch M,Giese H,Büchs J,Wiechert W,Oldiges M

更新日期：2014-12-01 00:00:00

abstract：:Freshwater sources are limited and access to clean water is an acute challenge in recent decades. The sustainable water treatments methods are need of time and water desalination is one of the most interesting technology. Most desalination technologies are required high energy input while Microbial Desalination Cells ...

journal_title：Bioprocess and biosystems engineering

authors： Liaquat R,Mehmood T,Khoja AH,Iqbal N,Ejaz H,Mumtaz S

更新日期：2021-01-01 00:00:00

abstract：:Salmonella is a major pathogen that causes acute foodborne outbreaks worldwide. Seafood, particularly shellfish, is a proven source of Salmonella spp. infection because many people prefer to eat it raw or lightly cooked. However, traditional identification methods are too time-consuming and complex to detect contamina...

journal_title：Bioprocess and biosystems engineering

authors： Gao W,Huang H,Zhu P,Yan X,Fan J,Jiang J,Xu J

更新日期：2018-05-01 00:00:00

abstract：:The enzymatic method for synthesising polyglycerol polyricinoleate (PGPR), a food additive named E-476, was successfully carried out in the presence of immobilised Rhizopus oryzae lipase in a solvent-free medium. The great advantage of using the commercial preparation of R. oryzae lipase is that it is ten times cheape...

journal_title：Bioprocess and biosystems engineering

authors： Ortega S,Máximo MF,Montiel MC,Murcia MD,Arnold G,Bastida J

更新日期：2013-09-01 00:00:00

abstract：:The discovery of quorum sensing as a mechanism for regulating specific phenotypes in bacteria based on population density has conveyed attention to find molecules capable of interfering quorum sensing networks (QSN) in a process coined quorum quenching. Here, we examined the dynamics of Escherichia coli AI-2 and Pseud...

journal_title：Bioprocess and biosystems engineering

authors： Barrios AF,Covo V,Medina LM,Vives-Florez M,Achenie L

更新日期：2009-06-01 00:00:00

abstract：:To examine the effects of ammonium salts on tetramethylpyrazine (TTMP) production by Bacillus subtilis CCTCC M 208157, different ammonium salts were tested, and diammonium phosphate (DAP) was found to have a predominant effect on stimulating TTMP synthesis. The DAP requirements for TTMP production were then investigat...

journal_title：Bioprocess and biosystems engineering

authors： Zhu BF,Xu Y

更新日期：2010-10-01 00:00:00

abstract：:The aim of this study is to achieve high-level extracellular production of D-Psicose-3-epimerase (DPE) with recombinant Escherichia coli. High-level production of DPE is one of the key factors in D-Psicose production. In the present study, the gene AAL45544.1 from Agrobacterium tumefaciens str. C58 was modified by art...

journal_title：Bioprocess and biosystems engineering

authors： Gu L,Zhang J,Liu B,Wu C,Du G,Chen J

更新日期：2013-11-01 00:00:00

abstract：:Penicillin G acylase (PGA) from Kluyvera citrophila immobilized on Amberzyml was used for enantioselective hydrolysis of N-phenylacetylated-DL-tert-leucine (N-Phac-DL-Tle) to produce L-tert-leucine (L-Tle). The effects of various organic cosolvents on hydrolysis of N-Phac-DL-Tle have been investigated in aqueous-cosol...

journal_title：Bioprocess and biosystems engineering

authors： Liu SL,Wei DZ,Song QX,Zhang YW,Wang XD

更新日期：2006-04-01 00:00:00

abstract：:A new online monitoring technique to measure the physiological parameters, dissolved oxygen (DO) and pH of microbial cultures in continuously shaken 24-well microtiter plates (MTP) is introduced. The new technology is based on immobilised fluorophores at the bottom of standard 24-well MTPs. The sensor MTP is installed...

journal_title：Bioprocess and biosystems engineering

authors： Kensy F,John GT,Hofmann B,Büchs J

更新日期：2005-11-01 00:00:00

abstract：:In this study, we attempted to increase butanol/acetone ratio and total solvent productivity in ABE fermentations with corn- and cassava-based media, by consecutively feeding a small amount of butyrate/acetate during solventogenic phase to weaken the metabolic strengths in butyrate/acetate closed-loops. Consecutively ...

journal_title：Bioprocess and biosystems engineering

authors： Li X,Shi Z,Li Z

更新日期：2014-08-01 00:00:00

abstract：:ε-Poly-L-lysine (ε-PL) is produced by Streptomyces as a secondary metabolite with wide industrial applications, but its production still needs to be further enhanced. Environmental stress is an important approach for the promotion of secondary metabolites production by Streptomyces. In this study, the effect of acidic...

journal_title：Bioprocess and biosystems engineering

authors： Ren XD,Chen XS,Zeng X,Wang L,Tang L,Mao ZG

更新日期：2015-06-01 00:00:00

abstract：:Many bacteria reduce inorganic sulfate to sulfide to satisfy their need for sulfur, one of the most important elements for biological life. But little is known about the metabolic pathways involving hydrogen sulfide (H₂S) in mesophilic bacteria. By genomic sequence analysis, a complete set of genes for the assimilator...

journal_title：Bioprocess and biosystems engineering

authors： Tan T,Liu C,Liu L,Zhang K,Zou S,Hong J,Zhang M

更新日期：2013-10-01 00:00:00

abstract：:This study introduces an effective method to deposit polypyrrole (PPy) on graphite felt (GF) as anode to improve the start-up performance of microbial fuel cells (MFCs). The results of scanning electron microscope (SEM) and electrochemical testing reveal that polypyrrole is able to improve the electrical conductivity ...

journal_title：Bioprocess and biosystems engineering

authors： Pu KB,Lu CX,Zhang K,Zhang H,Chen QY,Wang YH

更新日期：2020-03-01 00:00:00

abstract：:Antrodia cinnamomea has recently become a well-known medicinal mushroom in Taiwan. Bioactive compounds found in A. cinnamomea include: polysaccharide, sesquiterpene lactone, steroids and triterpenoids. The aim of this study was to evaluate the feasibility of adding citrus peel extract to enhance the formation of bioac...

journal_title：Bioprocess and biosystems engineering

authors： Yang FC,Ma TW,Chuang YT

更新日期：2012-10-01 00:00:00

abstract：:The development of a safe and eco-friendly method for metal nanoparticle synthesis has an increasing demand, due to emerging environmental and biological harms of hazardous chemicals used in existing nanosynthesis methods. The present investigation reports a rapid one-step, eco-friendly and green approach for the form...

journal_title：Bioprocess and biosystems engineering

authors： Koli SH,Mohite BV,Suryawanshi RK,Borase HP,Patil SV

更新日期：2018-05-01 00:00:00

abstract：:A pilot-scale ultrafiltration membrane bioreactor (MBR) was used for the aerobic treatment of urban wastewater in four experimental stages influenced by seasonal temperature and different sets of operation conditions. The structure of the ammonia-oxidizing bacteria (AOB) community was profiled by temperature gradient ...

journal_title：Bioprocess and biosystems engineering

authors： Cerrone F,Poyatos JM,Molina-Muñoz M,Cortés-Lorenzo C,González-López J,Rodelas B

更新日期：2013-07-01 00:00:00

abstract：:This work proposes a committee of Cascade Correlation neural networks as an online smoother for random measurement noise. The goals of this paper are twofold: first it intends to explore the possibilities of using a constructive neural network algorithm to learn how to filter typical noisy data from a bioreactor, CO(2...

journal_title：Bioprocess and biosystems engineering

authors： Giordano RC,Bertini JR Jr,Nicoletti MC,Giordano RL

更新日期：2008-02-01 00:00:00

abstract：:Amano lipase AK from P. fluorescens was immobilized on different types of chitosan-containing supports. Chitosan lower molecular weight (2.5%), chitosan lower molecular weight/sodium alginate (2.5%/2.5%) and chitosan lower molecular weight/carrageenan (2.5%/2.5%) allowed the highest values of immobilization yields (IY...

journal_title：Bioprocess and biosystems engineering

authors： de Sousa Fonseca T,de Oliveira UMF,de Oliveira MDCF,de Lemos TLG,da Silva MR,Rios NS,Gonçalves LRB,de Mattos MC

更新日期：2021-01-03 00:00:00

abstract：:In this paper, we build bounded error observers for a common class of partially known bioreactor models. The main idea is to construct hybrid bounded observers "between" high gain observer, which has an adjustable convergence rate but requires perfect knowledge of the model, and asymptotic observer which is very robus...

journal_title：Bioprocess and biosystems engineering

authors： Lemesle V,Gouzé JL

更新日期：2005-08-01 00:00:00

abstract：:A novel and highly stable biomimetic oxidase sensor system was designed for catehol detection. FePP used as biomimetic horseradish peroxidase (HRP) was immobilized onto modified multi-walled carbon nanotubes (MWCNTs). Functional groups such as -OH, -NH2 and -COOH were introduced onto the surface of MWCNTs to provide b...

journal_title：Bioprocess and biosystems engineering

authors： Bin Z,Yanhong C,Jiaojiao X

更新日期：2019-02-01 00:00:00

abstract：:Twenty-nine actinobacterial strains were isolated from marine sponge Spongia officinalis and screened for antagonistic activity against various bacterial and fungal pathogens. The active antibiotic producer MAPS15 was identified as Streptomyces sp. using 16S rRNA phylogenetic analysis. The critical control factors wer...

journal_title：Bioprocess and biosystems engineering

authors： Sathiyanarayanan G,Gandhimathi R,Sabarathnam B,Seghal Kiran G,Selvin J

更新日期：2014-03-01 00:00:00

abstract：:Dissolved oxygen and pH are critical factors influencing cell growth and metabolism. In our previous work, we constructed the recombinant strain Mortierella alpina CCFM698, which has the ability to produce EPA at room temperature. However, our experiments showed that the dissolved oxygen produced by the aeration and a...

journal_title：Bioprocess and biosystems engineering

authors： Huang M,Chen H,Tang X,Lu H,Zhao J,Zhang H,Chen Y,Chen W

更新日期：2020-09-01 00:00:00

abstract：:Organic solid waste composting is a complex process that involves many coupled physical, chemical and biological mechanisms. To understand this complexity and to ease in planning, design and management of the composting plant, mathematical model for simulation is usually applied. The aim of this paper is to develop a ...

journal_title：Bioprocess and biosystems engineering

authors： Seng B,Kristanti RA,Hadibarata T,Hirayama K,Katayama-Hirayama K,Kaneko H

更新日期：2016-01-01 00:00:00

abstract：:An new cascade control system is presented that reproducibly keeps the cultivation part of recombinant protein production processes on its predetermined track. While the system directly controls carbon dioxide production mass and carbon dioxide production rates along their setpoint profiles in fed-batch cultivation, i...

journal_title：Bioprocess and biosystems engineering

authors： Kuprijanov A,Schaepe S,Aehle M,Simutis R,Lübbert A

更新日期：2012-03-01 00:00:00

abstract：:We propose an adaptive control law that allows one to identify unstable steady states of the open-loop system in the single-species chemostat model without the knowledge of the growth function. We then show how one can use this control law to trace out (reconstruct) the whole graph of the growth function. The process ...

journal_title：Bioprocess and biosystems engineering

authors： Sieber J,Rapaport A,Rodrigues S,Desroches M

更新日期：2013-10-01 00:00:00

abstract：:Gamma-aminobutyric acid (GABA) production by free and Ca-alginate encapsulated cells of Enterococcus faecium CFR 3003 was investigated. Mass transfer rates characterizing the GABA production process using encapsulated cells were investigated. Experiments were performed to investigate external film and internal pore di...

journal_title：Bioprocess and biosystems engineering

authors： Divyashri G,Prapulla SG

更新日期：2015-03-01 00:00:00

abstract：:Candida cylindracea NRRL Y-17506 was grown to produce extracellular lipase from oleic acid as a carbon source. Through flask cultures, it was found that the optimum initial oleic acid concentration for cell growth was 20 g l(-1). However, high initial concentrations of oleic acid up to 50 g l(-1) were not inhibitory. ...

journal_title：Bioprocess and biosystems engineering

authors： Kim BS,Hou CT

更新日期：2006-06-01 00:00:00

abstract：:Bacillusfirmus strain 37 produces the cyclomaltodextrin glucanotransferase (CGTase) enzyme and CGTase produces cyclodextrins (CDs) through a starch cyclization reaction. The strategy for the cloning and expression of recombinant CGTase is a potentially viable alternative for the economically viable production of CGTas...

journal_title：Bioprocess and biosystems engineering

authors： Gimenez GG,Costa H,de Lima Neto QA,Fernandez MA,Ferrarotti SA,Matioli G

更新日期：2019-04-01 00:00:00

abstract：:The yeast Rhodotorula glutinis was examined for its ability to remove Pb(2+) from aqueous solution. Within 10 min of contact, Pb(2+) sorption reached nearly 80% of the total Pb(2+) sorption. The optimum initial pH value for removal of Pb(2+ )was 4.5-5.0. The percentage sorption increased steeply with the biomass conce...

journal_title：Bioprocess and biosystems engineering

authors： Cho DH,Kim EY

更新日期：2003-03-01 00:00:00

abstract：:Two laboratory-scale expanded granular sludge bed (EGSB) reactors were operated at 18 and 25 °C, respectively, for the treatment of synthetic wastewater composed of ethanol and 1-methoxy-2-propanol (M2P) in a mass ratio of 4:1. Reactors were operated first with continuous wastewater supply and after with discontinuous...

journal_title：Bioprocess and biosystems engineering

authors： Lafita C,Penya-roja JM,Gabaldón C

更新日期：2015-11-01 00:00:00