Showing papers in "Enzyme and Microbial Technology in 2006"

TL;DR: Various industrial applications of microbial lipases in the detergent, food, flavour industry, biocatalytic resolution of pharmaceuticals, esters and amino acid derivatives, making of fine chemicals, agrochemicals, use as biosensor, bioremediation and cosmetics and perfumery are described.

TL;DR: In this paper, a review article summarizes bio-hydrogen production from some waste materials, including cellulose and starch containing agricultural and food industry wastes and some food industry wastewaters.

TL;DR: The assessment of raw material cost and the estimation of the potential market size clearly indicate that the current petroleum-based succinic acid process will be replaced by the fermentative succinic Acid production system in the foreseeable future.

TL;DR: In this paper, the efficiency of eight extracellular polymeric substances (EPS) extraction methods was compared on two different activated sludges, and the results showed that the EPS quantities extracted were more greater for chemical methods than those for physical methods.

TL;DR: The immobilization of the enzymes on both monomer and dimeric matrices promoted a significant increment in the enzyme stability, but it was found that the stabilization depends on the degree of activation (monomer or dimer), and it is necessary to analyze each individual enzyme before selecting any of the immobilization protocols.

TL;DR: In this article, simultaneous saccharification and fermentation (SSF) with Mucor indicus, Rhizopus oryzae, and Saccharomyces cerevisiae was investigated and compared with pure cellulose, Avicel, as a reference.

TL;DR: Very active and highly stabilized derivatives of many enzymes and proteins have been prepared using activated supports that immobilize proteins, via a two-point reaction involving the region/s of the protein surface with the higher densities of amino groups.

TL;DR: In this paper, the unstructured kinetics and the structured kinetics models were described in batch processes but the continuous kinetic model is insufficiently cared, and the problem of limited oxygen transfer suggests that a new bioreactor design is required.

TL;DR: Optimisation of enzymatic hydrolyses allowed the use of lower quantities of enzymes and improved the cost effectiveness of the process.

TL;DR: Efficiency of this fungus in decolorization of various effluents with laccase that is active at pH 3.0 and 60 °C in the presence of seawater has great potential in bioremediation of industrial effluent.

TL;DR: A white-rot basidiomycete isolated from decayed acacia wood, identified as Trametes trogii, was selected in a broad plate screening because of its ability to degrade commercial dyes, and was able to decolorize dyes from the textile industry.

TL;DR: Pleurotus eryngii, P. ostreatus and P. pulmonarius produced laccase (Lac) both under conditions of submerged fermentation (SF) and solid-state fermentation (SSF) with all of the investigated carbon and nitrogen sources.

TL;DR: In this article, the fungus Aspergillus niger was used for bio-leaching of fly ash pulp in a municipal solid waste (MSW) incinerator in Singapore.

TL;DR: In this article, a batch and continuous reactors inoculated with white-rot fungi were operated in order to study decolorization of textile dyes, including Reactive Blue 4 (a blue anthraquinone dye) and Reactive Red 2 (a red azo dye).

TL;DR: It was concluded that biological parameters have great value as early and sensitive indicators of changes in soil properties induced by different management strategies, while conventional physicochemical parameters were not sensitive enough to detect the relatively subtle changes in soils properties caused by these management practices in the short-term.

TL;DR: It is shown that starvation periods, combined with co-immobilization with MGPB, have synergistic effects on absorption of phosphorus from wastewater and merits consideration in designing future biological treatments of wastewater.

TL;DR: Findings suggested that the sophorolipid produced by W. domercqiae have anticancer activity.

TL;DR: Different detoxification methods of eucalyptus residues hydrolysate are described to improve xylitol production by Candida guilliermondii and it was verified that low concentrations of acetic acid can have a benefical effect on xylitor productivity.

TL;DR: This review focuses on the latest developments on the enzymology of biological remediation and suggests that sludge–floc parameters, such as internal structure and composition, sludge retention time, microbial ecology, nutrient concentration, dissolved oxygen and type of industrial wastewater, whether from an aerobic or anaerobic system, are replaced by quantitative kinetic terms.

TL;DR: The immobilization had a beneficial effect on the stability of HRP and the phenol conversions, which were higher than those achieved with the free enzyme, and increased the amount of hydrogen peroxide added to the reactor led to higher conversions.

TL;DR: Highly pure papain was obtained in a much shorter processing time directly from unclarified latex with the use of an aqueous two-phase system consisting of 8% polyethylene glycol and 15% ammonium sulfate.

TL;DR: In this paper, simultaneous saccharification and fermentation (SSF) was performed on the slurries resulting from steam pretreatment of non-, SO2- and H2SO4-impregnated Salix chips.

TL;DR: Differences between the kinetic properties suggest that when they were tested, one or both fungal lipases might still have been associated with non-proteic compounds originating from the culture medium.

TL;DR: In this article, a central composite design and response surface methodology (RSM) was employed in planning the experiments, in order to determine the optimum conditions for bio-hydrogen production, and the experiment results show that the RSM with the central composite designed was useful for optimizing the biohydrogen-producing process.

TL;DR: The glucanase enzyme in combination with the antibiotic showed a strong synergistic inhibitory effect on the hyphal growth of both fungi.

TL;DR: The results suggested that integrational mutagenesis resulted in global metabolic shift and phenotypic changes, which also improved production of butyric acid and hydrogen from glucose in the fermentation.

TL;DR: Adsorption studies revealed that three-fold more protein was adsorbed onto SPS compared to SC due to the presence of lignin in SPS, and some degradation of the enzymes occurred during the hydrolysis.

TL;DR: A thermostable, alkaline active xylanase was purified to homogeneity from the culture supernatant of an alkaliphilic Bacillus halodurans S7, which was isolated from a soda lake in the Ethiopian Rift Valley and degraded xylan in an endo-fashion.

TL;DR: The crude enzyme of this strain was determined as a bleach stable, serine alkaline protease with an optimum temperature of 60 °C and a pH of 11, with a potential to be a candidate for the applications in the detergent industry.

TL;DR: In this article, the conditions of simultaneous saccharification and fermentation (SSF), viz temperature, pH and time of fermentation of ethanol from sago starch with co-immobilized amyloglucosidase (AMG) and Zymomonas mobilis MTCC 92 by submerged fermentation, were optimized.