Showing papers in "Biochemical Engineering Journal in 2007"

TL;DR: This review focuses on Trichoderma spp.

TL;DR: In this article, a cost effective biosorbent and the biosorption process involved in the adsorption of heavy metal-contaminated industrial wastewater using the developed bio-sorbent was studied.

TL;DR: In comparing the economic efficiency of energy to biomass, the use of red LED gave the most effective performance for the photoautotrophic cultivation of Spirulina platensis.

TL;DR: In this article, the effects of thermal treatment on the semi-continuous anaerobic digestion of the main sludge compounds (proteins, carbohydrates and lipids) were studied.

TL;DR: This paper reviews recent research in process engineering, metabolic and enzymetic mechanisms, and molecular biotechnology associated with lactic acid production by the Rhizopus fungi to get a better understanding of biochemical activities.

TL;DR: In this article, the authors applied the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm models to describe the biosorption of the metal ions onto C. furcata biomass.

TL;DR: It is suggested that the PBR enhances repeated batch methanolysis by protecting immobilized cells from physical damage and excess amounts of methanol, which is considered to be promising for industrial biodiesel-fuel production.

TL;DR: In this paper, an attempt was made to examine the effect of applied pressure on membrane fouling that might influence the potential use of ultrafiltration (UF) membrane in treating as well as recovering the bioresources, namely protein and carbohydrate from complex feed like palm oil mill effluent (POME).

TL;DR: In this article, the authors investigated the mechanisms of Ni2+ biosorption by aerobic granules and found that Ni2 + biosorbing was associated with a significant release of Ca2+ ion, e.g., 1 ǫ of Ni 2 + adsorbed would result in a release of 0.68 mmeq of Ca 2 + ion.

TL;DR: It is suggested that it is possible to decolorize a high concentration of commercial dyes, which would be a great advance in the treatment of dye containing wastewater and for textile effluent treatment.

TL;DR: The results of FT-IR analysis suggested that the chromium binding sites on the bacterial cell surface were most likely carboxyl and amine groups, which seemed to engage in reductive and adsorptive reactions with respect to Cr(VI) biosorption.

TL;DR: The integration of ultrafiltration with aqueous two phase extraction facilitated the selective removal of polyethylene glycol from the purified C-phycocyanin.

TL;DR: Dairy wastewater, with 2% added ethanol (v/v), was used as a substrate for the production of a novel bioflocculant by Klebsiella mobilis that was effective in flocculating some disperse dyes in aqueous solutions with a decolorization efficiency of 91%.

TL;DR: In this paper, the authors analyzed the mechanisms that govern lead removal and found a suitable equilibrium isotherm and kinetic model for the lead removal in a batch reactor, where the experimental data were analyzed using the Langmuir, Freundlich and Temkin equations.

TL;DR: A two-stage fermentation process by combining shake-flask fermentation with static culture significantly enhanced cordycepin production and the maximum production was obtained, which is much higher than those reported up to date.

TL;DR: It was clearly demonstrated that nitrogen removal not via nitrate but via nitrite could be achieved by controlling the relative surface loadings of oxygen and ammonia, supporting the feasibility of short-cut SND with MABs.

TL;DR: The increase in casein concentration has resulted in increased viscosity of the fermentation broth with increase in time of bioreactor operation, which in turn resulted in decreased oxygen mass transfer coefficient with reduced oxygen transfer rates.

TL;DR: In this paper, the authors compared the performance of ORP and alkalinity in a sequencing batch reactor (SBR) cycle with a series of operational conditions (chemical oxygen demand, NH4+, hydraulic retention time) and under allylthiourea (ATU, a chemical inhibited nitrification) shock.

TL;DR: In this article, the production of carotenoids by the strain of Rhodotorula glutinis, a red soil yeast isolated from IPRAS refinery wastewater, was investigated in a batch system as a function of initial pH, temperature, aeration rate, initial sugar (glucose, molasses sucrose and whey lactose) and ammonium sulphate concentrations and activator (cotton seed oil and Tween 80) addition.

TL;DR: In this paper, experiments have been carried out in the batch reactor to obtain equilibrium data of the individual biosorption and the mixture of cadmium and zinc ions by the biomass of the Sargassum filipendula species pre-treated with 0.5 mol/L calcium chloride.

TL;DR: In this article, equal weights of cuttlebone chitosan and activated clay were mixed and prepared as the wet and dried (with freeze-drying) beads, and the resulting composite beads were then crosslinked with glutaraldehyde as the supports for β-glucosidase immobilization.

TL;DR: Dimethyl carbonate (DMC) was used in the enzymatic transesterification of vegetable oils, which resulted in an irreversible reaction benefiting fatty acid methyl esters production.

TL;DR: Studies are needed on the use of alternative substrates and complexes in biotechnology to assess the composition of these media, avoiding unnecessary supplementation with vitamins and minerals salts, when using the formulations of the mediums defined for the complex mediums.

TL;DR: In this paper, the authors examined the effects of biofactors (anode inoculums species, inoculum concentration, as well as abio-factors such as cathode electron acceptor and proton exchange material) on electricity production of a dual-chamber mediatorless MFC in fed-batch mode.

TL;DR: The results of batch and fed-batch fermentations demonstrated that K. pneumoniae XJ-Li would be an excellent 1,3-PD producer.

TL;DR: A modified biomass of baker's yeast was prepared by grafting poly(amic acid), which was obtained via reaction of pyromellitic dianhydride (PMDA) and thiourea, onto the biomass surface at 50°C for 4h as discussed by the authors.

TL;DR: In this paper, the authors determined the reaction pathway and kinetics of thiocyanate degradation during mixed culture (activated sludge) treatment of coke-ovens wastewater.

TL;DR: In this paper, the efficiency of treated bauxite to remove Cr(VI) from a synthetic solution was investigated and it was shown that the adsorption is highest at 45°C and the rate is very slow after 5min.

TL;DR: In this article, two components of mango pit (the outer husk: SEMAVE-H and the inner seed: SEMVE-S) were studied by ultimate and proximate analysis and the thermal behavior was studied by thermogravimetry and adsorption isotherms of water vapor, methylene blue and nitrogen were measured.

TL;DR: In this paper, the authors used the Mark-Houwink relationship and the intrinsic viscosities determined for tetrahydrofuran (THF) at 40°C as solvent.