Showing papers in "Biochemical Engineering Journal in 2005"

TL;DR: In this paper, the degradation of phenol and catechol by a bacterial strain of Pseudomonas putida (MTCC 1194) in basal salt medium (BSM) was investigated in shake-flask experiments at 299±±-03 °C and pH of approximately 71.

TL;DR: In this article, a study was carried out in a batch system using Mucor hiemalis for its sorption and desorption study of Cr(VI), where the activation energy of the biosorption (E a ) was estimated as 4.0 kJ/mol using Arrhenius equation.

TL;DR: In this paper, an enzyme called laccase was immobilized on magnetic chitosan microspheres by adsorption and cross-linking with glutaraldehyde.

TL;DR: In this paper, a batch experiment was carried out for the sorption of methylene blue onto mango seed kernel particles, where the operating variables studied were initial solution pH, temperature, adsorbent mass, initial dye concentration and contact time.

TL;DR: P. aeruginosa J4 strain, isolated from wastewater of a petrochemical factory located in southern Taiwan, was used to produce rhamnolipid from a variety of carbon substrates, including hydrophilic substrate, vegetable oils, and mineral oils.

TL;DR: In this paper, the authors present a review of the production of ligninolytic enzymes by Solid State Fermentation (SSF) technique, which has become an attractive alternative to submerged fermentation (SmF) for specific applications due to the recent improvements in reactor designs.

TL;DR: In this article, a strict autotrophic bacterium, Clostridium ljungdahlii, was grown on syngas to investigate production of acetate and ethanol.

TL;DR: In this paper, mesophilic anaerobic digestion for the treatment of fats of different origin through co-digestion with the organic fraction of municipal solid wastes (OFMSW) has been evaluated.

TL;DR: In this paper, chitosan was depolymerized either by HCl hydrolysis or enzymatic degradation with a commercial preparation Pectinex Ultra Spl The chitooligosaccharides released by both methods were selectively precipitated in methanol solutions and characterized using MALDI-TOF mass spectrometry.

TL;DR: The enzymes analyses demonstrated that grape pomace could be competitive with other typical agroindustrial wastes used as substrates in SSF processes.

TL;DR: In this paper, the effect of various process variables was studied for maximum conversion efficiency of maize starch to glucose using crude amylase preparations, including pre-cooking α-amylase, post-caking α-, glucoamylases, and saccharification temperature.

TL;DR: The results received in these experiments demonstrated that the Haldane kinetic model adequately described the dynamic behavior of the phenol biodegradation by the strain of C. tropicalis.

TL;DR: Investigation of the impact of temperature and light quality on biomass accumulation and ginsenoside production by hairy roots cultivated in large-scale bioreactors found biomass accumulation was optimal under 20 °C/13 ° C day (12 h)/night (8 h) cycle.

TL;DR: In this paper, the authors proposed a taguchi orthogonal array (OA) experimental design (DOE) methodology for laccase production by Pleurotus ostreatus 1804, which facilitates the study of interaction of a large number of variables spanned by factors and their settings with a small number of experiments.

TL;DR: In this article, the authors examine the time courses of COD, NH3 N and DO during the simultaneous nitrification/denitrification (SND) process, with particular reference to the question of whether SND is a physical or microbiological phenomena.

TL;DR: The efficiency of the bioflocculant produced by Enterobacter aerogenes was better than that of conventional chemically synthesized flocculants, such as anionic polyacrylamide or non-ionicpolyacryamide.

TL;DR: Production of poly(3-hydroxyalkaonates) (PHA) by Pseudomonas aeruginosa 42A2 from agro-industrial oily wastes was studied and a wide range of components was observed.

TL;DR: The fit to experimental equilibrium data indicates that the isotherm for this system can be considered of Langmuir type and optimizing mass transfer parameters, that describe the phenomena of internal diffusion and external convection on chitosan beads, as well as determining the kinetic rate constant.

TL;DR: The biochemical kinetic of simultaneous saccharification and fermentation (SSF) for lactic acid production by fungal species of Rhizopus arrhizus 36017 and rhizopus oryzae 2062 was studied with respect to growth pH, temperature and substrate as mentioned in this paper.

TL;DR: It was demonstrated thus that the whole cell biocatalyst promotes acyl migration of partial glycerides, and that the facilitatory effect is increased by increase in the water content of the reaction mixture but it is lost gradually with increasing number of reaction cycles.

TL;DR: In this article, three impeller combinations namely, single, double and triple impellers, respectively have been tested in the laboratory bioreactor (2 l) for their gas-liquid mass transfer performance.

TL;DR: In this article, the linear viscoelasticity behavior of glycerol/gluten bioplastics obtained by casting and thermoplastic processing has been studied by oscillatory shear experiments and modulated differential scanning calorimetry in a wide range of temperatures.

TL;DR: In this paper, the central composite design and the response surface methodology were applied to determine the optimum physiological conditions for the production of volatile fatty acids (VFA) and H2 from sucrose-rich wastewater by mixed anaerobic culture.

TL;DR: The biomass concentration and the pellet diameter were the main factors that influenced the flow index and the consistency index of the power-law broths and pellet size and morphology were not influenced by oxygen mass transfer effects.

TL;DR: In this paper, a pilot-scale packed bed reactor was constructed and operated for biological phenol removal from industrial wastewater using batch cultures of free suspended cells and attached growth processes, and two different operating modes were used to investigate the optimal performance of the filter, i.e., continuous and draw-fill.

TL;DR: In this paper, a statistical approach called response surface methodology (RSM) is used for the prediction of the kinetic constants of glucose oxidase (GOx) as a function of reaction temperature and pH.

TL;DR: In this article, an indicator free DNA biosensors fabricated by self-assembling of bilayer two-dimensional 3-mercaptopropyltrimethoxysilane (B2dMPTS), gold nanoparticles and oligonucleotide has been studied on gold substrate.

TL;DR: The liquid flow characteristics in a microbial fuel cell (MFC) were determined using a residence time distribution (RTD) test, and its effects on the performance of the MFC were investigated in terms of electricity generation and chemical oxygen demand (COD) removal.

TL;DR: A good correlation was found between the dye degradation and the enzyme production, and the presence of C.I. Reactive Black 5 in the culture was found to be indispensable to the production of MnP by D. polymorphus.