A tracer study for assessing the interactions between hydraulic retention time and transport processes in a wetland system for nutrient removal.

abstract：:Infection with Vibrio cholerae is a significant problem in many developing countries. Cultivation of V. cholerae is used in production of cholera toxin B subunit, which is a component in a cholera vaccine. Fed-batch cultivations with V. cholerae in defined media have been conducted and reproducible results were obtain...

journal_title：Bioprocess and biosystems engineering

authors： de Maré L,Andersson L,Hagander P

更新日期：2003-01-01 00:00:00

abstract：:A novel β-1,3-1,4-glucanase gene was identified in Bacillus sp. SJ-10 (KCCM 90078) isolated from jeotgal, a traditional Korean fermented fish. We analysed the β-1,3-1,4-glucanase gene sequence and examined the recombinant enzyme. The open reading frame of the gene encoded 244 amino acids. The sequence was not identica...

journal_title：Bioprocess and biosystems engineering

authors： Kim YR,Kim EY,Lee JM,Kim JK,Kong IS

更新日期：2013-06-01 00:00:00

abstract：:Industrial grade soluble corn starch was used directly and effectively as the fermentation substrate for microbial exopolysaccharides production. Bacillus subtilis mutant strain NJ308 grew with untreated starch raw material as the sole carbon source. The real-time PCR results demonstrated that up-regulated genes encod...

journal_title：Bioprocess and biosystems engineering

authors： He X,He F,Hang J,Li H,Chen Y,Wei P,Chen K,Li Y,OuYang P

更新日期：2018-06-01 00:00:00

abstract：:Lignin-modifying enzymes have various promising applications such as biobleaching, biopulping, the functionalization of lignocellulosic materials, the modification of wood fibers, the remediation of contaminated soil and effluents, as well as improvement of the enzymatic hydrolysis of lignocellulosic substrates. In th...

journal_title：Bioprocess and biosystems engineering

authors： Moilanen U,Winquist E,Mattila T,Hatakka A,Eerikäinen T

更新日期：2015-01-01 00:00:00

abstract：:Polyhydroxyalkanoates (PHAs) are biological plastics that are sustainable alternative to synthetic ones. Numerous microorganisms have been identified as PHAs producers. They store PHAs as cellular inclusions to use as an energy source backup. They can be produced in shake flasks and in bioreactors under defined fermen...

journal_title：Bioprocess and biosystems engineering

authors： Raza ZA,Tariq MR,Majeed MI,Banat IM

更新日期：2019-06-01 00:00:00

abstract：:Biological synthesis of succinic acid at low pH values was favored since it not only decreased investment cost but also simplified downstream purification process. In this study, the feasibility of using glutamate decarboxylase system to improve succinic acid production of Escherichia coli AFP111, a succinate-producin...

journal_title：Bioprocess and biosystems engineering

authors： Wu M,Li X,Guo S,Lemma WD,Zhang W,Ma J,Jia H,Wu H,Jiang M,Ouyang P

更新日期：2017-04-01 00:00:00

abstract：:Chemical absorption-biological reduction (BioDeNOx), which uses Fe(II)(EDTA) as a complexing agent for promoting the mass transfer efficiency of NO from gas to water, is a promising technology for removing nitric oxide (NO) from flue gases. The carbon source and pH are important parameters for Fe(II)(EDTA)-NO (the pro...

journal_title：Bioprocess and biosystems engineering

authors： Chen J,Wang L,Zheng J,Chen J

更新日期：2015-07-01 00:00:00

abstract：:Pretreatment method for rapeseed straw by sodium hydroxide was investigated for production of bioethanol and biobutanol. Various pretreatment parameters, including temperature, time, and sodium hydroxide concentration were optimized using a statistical method which is a central composite design of response surface met...

journal_title：Bioprocess and biosystems engineering

authors： Kang KE,Jeong GT,Park DH

更新日期：2012-06-01 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：:Bacterial cellulose (BC) exhibits unique properties such as high purity compared to plant-based cellulose; however, commercial production of BC has remained a challenge, primarily due to the strain properties of cellulose-producing bacteria. Herein, we developed a functional and stable BC production system in genetica...

journal_title：Bioprocess and biosystems engineering

authors： Buldum G,Bismarck A,Mantalaris A

更新日期：2018-02-01 00:00:00

abstract：:The novel magnetic nanobeads with epoxy groups on the surface were prepared from glycidyl methacrylate (GMA), ethylene glycol dimethacrylate (EGDMA) and hydroxyethyl methacrylate (HEMA) via emulsifier-free emulsion polymerisation, and they were characterized by scanning electron microscopy and vibrating sample magneto...

journal_title：Bioprocess and biosystems engineering

authors： Liu H,Liu J,Tan B,Zhou F,Qin Y,Yang R

更新日期：2012-10-01 00:00:00

abstract：:Performances of single-stage and two-stage sequencing batch reactor (SBR) systems were investigated for treating dairy wastewater. A single-stage SBR system was tested with 10,000 mg/l chemical oxygen demand (COD) influent at three hydraulic retention times (HRTs) of 1, 2, and 3 days and 20,000 mg/l COD influent at fo...

journal_title：Bioprocess and biosystems engineering

authors： Li X,Zhang R

更新日期：2002-06-01 00:00:00

abstract：:L-aspartate ammonia-lyase from Bacillus sp. YM55-1 (AspB, EC 4.3.1.1) catalyzes the reversible conversion of L-aspartate (Asp) into fumarate and ammonia with a high specific activity toward the substrate. AspB was expressed in Escherichia coli and partially purified by heat precipitation and saturation with ammonium s...

journal_title：Bioprocess and biosystems engineering

authors： Cárdenas-Fernández M,López C,Alvaro G,López-Santín J

更新日期：2012-10-01 00:00:00

abstract：:A serine protease-producing marine bacterial strain named as PT-1 was isolated and identified as a family of Marinomonas arctica, based on molecular characterization of 16S rRNA gene sequence, phylogenetic tree, and fatty acid composition analyses. Optimized culture conditions for growth of the bacterium PT-1 and prod...

journal_title：Bioprocess and biosystems engineering

authors： Yoo AY,Park JK

更新日期：2016-02-01 00:00:00

abstract：:Organic matters are directly converted to electricity by microorganisms in microbial fuel cells (MFC). Modeling the performance of MFC sheds light on the behavior of MFC in various operational conditions (e.g. pH and temperature). In the present research, three voltage losses were considered for modeling of the MFC po...

journal_title：Bioprocess and biosystems engineering

authors： Kadivarian M,Karamzadeh M

更新日期：2020-03-01 00:00:00

abstract：:Formulation conditions have a significant influence on the degree of freeze/thaw (FT) stress-induced protein instabilities. Adding cryoprotectants might stabilize the induced FT stress instabilities. However, a simple preservation of protein stability might be insufficient and further methods are necessary. This study...

journal_title：Bioprocess and biosystems engineering

authors： Wöll AK,Hubbuch J

更新日期：2020-07-01 00:00:00

abstract：:Tissue engineered constructs reported to date have been prepared primarily from poly(glycolic) acid or collagen scaffolds onto which cells are grown and matured. In this paper we report experimental data to demonstrate the use of a natural, human protein, as a tubular scaffold for vascular grafting. Using a manual and...

journal_title：Bioprocess and biosystems engineering

authors： Harding SI,Afoke A,Brown RA,MacLeod A,Shamlou PA,Dunnill P

更新日期：2002-04-01 00:00:00

abstract：:Changes in the microbial community of an enhanced biological phosphorus removal (EBPR) activated sludge system under different influent phosphorus/carbon (P/C) ratio conditions were investigated through evaluation of population respiratory quinone profiles. A total of 13 types of respiratory quinone homologs consistin...

journal_title：Bioprocess and biosystems engineering

authors： Ahn J,Lee M,Kwon H

更新日期：2006-08-01 00:00:00

abstract：:The effect of different process variables of reverse micelle extraction process like pH, addition of surfactant (AOT) concentration and potassium chloride (KCl) concentration on amylase recovery has been studied and analysed. Solid-state fermentation was used for the production of amylase enzyme. Response surface meth...

journal_title：Bioprocess and biosystems engineering

authors： Bera MB,Panesar PS,Panesar R,Singh B

更新日期：2008-06-01 00:00:00

abstract：:Vitamin B12 is a crucial fine chemical that is widely used in the pharmaceutical, food and chemical industries, and its production solely dependents on microbial fermentation. We previously constructed an artificial vitamin B12 biosynthesis pathway in Escherichia coli, but the yield of the engineered strains was low. ...

journal_title：Bioprocess and biosystems engineering

authors： Li D,Fang H,Gai Y,Zhao J,Jiang P,Wang L,Wei Q,Yu D,Zhang D

更新日期：2020-10-01 00:00:00

abstract：:A concept for the determination of concentrations in microchannels using FT-IR spectroscopy in transmission is presented. The fundamental idea of spatially resolved measurements along several measuring points was implemented in a single-channel microreactor. Compared to existing microreactor setups for the analysis of...

journal_title：Bioprocess and biosystems engineering

authors： Fagaschewski J,Sellin D,Wiedenhöfer C,Bohne S,Trieu HK,Hilterhaus L

更新日期：2015-07-01 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：:Gas sparging performances of a flat sheet and tubular polymeric membranes were investigated in 3.1 m bubble column bioreactor operated in a semi batch mode. Air-water and air-CMC (Carboxymethyl cellulose) solutions of 0.5, 0.75 and 1.0 % w/w were used as interacting gas-liquid mediums. CMC solutions were employed in t...

journal_title：Bioprocess and biosystems engineering

authors： Tirunehe G,Norddahl B

更新日期：2016-04-01 00:00:00

abstract：:In the present study, it was presented a strategy to maximize the cutinase production by solid-state fermentation from different microorganisms and substrates. The best results were observed using Fusarium verticillioides, rice bran being the main substrate. Maximum yield of cutinase obtained by the strain was 16.22 U...

journal_title：Bioprocess and biosystems engineering

authors： de Oliveira CT,Alves EA,Todero I,Kuhn RC,de Oliveira D,Mazutti MA

更新日期：2019-05-01 00:00:00

abstract：:Biodiesel production from microalgae depends on the biomass concentration and lipid content in microalgal cells. Photobioreactors (PBRs) facilitates cultivation of microalgae and renders better process control than open systems. However, reactor configuration and consequential hydrodynamics considerably influence biom...

journal_title：Bioprocess and biosystems engineering

authors： Banerjee S,Dasgupta S,Das D,Atta A

更新日期：2020-08-01 00:00:00

abstract：:The effects of biological factors including dissolved oxygen (DO), pH, carbon/nitrogen (C/N) and hydraulic retention times (HRT) on the performance of simultaneous nitrification and denitrification (SND) in a moving bed sequencing batch reactor (MBSBR) were investigated. A low DO was found to be advantageous to the SN...

journal_title：Bioprocess and biosystems engineering

authors： Wang J,Rong H,Cao Y,Zhang C

更新日期：2020-10-01 00:00:00

abstract：:This paper presents a methodology for the determination of reaction rate constants for nitrifying bacteria and their mean population percentage in biomass in an alternating oxidation ditch system. The method used is based on the growth rate equations of the ASM1 model (IWA) (Henze et al. in Activated sludge models ASM...

journal_title：Bioprocess and biosystems engineering

authors： Mantziaras ID,Katsiri A

更新日期：2011-01-01 00:00:00

abstract：:Pullulanase was extracellularly produced with an engineered Escherichia coli with a combined strategy. When auto-induction instead of isopropyl β-D-1-thiogalactopyranoside (IPTG) induction method was implemented, we observed increased extracellular activity (4.2 U ml(-1)) and cell biomass (7.95 g DCW l(-1)). Subsequen...

journal_title：Bioprocess and biosystems engineering

authors： Chen WB,Nie Y,Xu Y,Xiao R

更新日期：2014-04-01 00:00:00

abstract：:The yield of ethanol from oil palm empty fruit bunches (EFB) was increased on exploiting maleic acid pretreatment combined with fermentation of the pretreated whole slurry. The optimized conditions for pretreatment were to expose EFB to a high temperature (190 °C) with 1 % (w/v) maleic acid for a short time duration (...

journal_title：Bioprocess and biosystems engineering

authors： Jung YH,Kim IJ,Kim HK,Kim KH

更新日期：2014-04-01 00:00:00