abstract：:Previous work showed that random mutagenesis produced a mutant of toluene ortho-monooxygenase (TOM) of Burkholderia cepacia G4 containing the V106A substitution in the hydroxylase alpha-subunit (TomA3) that changed the color of the cell suspension from wild-type brown to green in rich medium. Here, DNA shuffling was u...

journal_title：Applied microbiology and biotechnology

authors： Rui L,Reardon KF,Wood TK

更新日期：2005-01-01 00:00:00

abstract：:Cultures of Microcoleus consortia polluted with two different types of crude oil, one with high content in aliphatic hydrocarbons (Casablanca) and the other rich in sulphur and aromatic compounds (Maya), were grown for 50 days and studied for changes in oil composition. No toxic effects from these oils were observed o...

journal_title：Applied microbiology and biotechnology

authors： De Oteyza TG,Grimalt JO,Diestra E,Solé A,Esteve I

更新日期：2004-12-01 00:00:00

abstract：:(S)-Hydroxynitrile lyase from Manihot esculenta (MeHNL) was shown for the first time to be able to catalyze the enantioselective transcyanation of acetyltrimethylsilane (ATMS) with acetone cyanohydrin to form (S)-2-trimethylsilyl-2-hydroxyl-propionitrile in an aqueous/organic biphasic system. To better understand the ...

journal_title：Applied microbiology and biotechnology

authors： Xu R,Zong MH,Liu YY,He J,Zhang YY,Lou WY

更新日期：2004-11-01 00:00:00

abstract：:The 3D structures of Fim H and PapG proteins complexed with the host carbohydrate receptor demonstrate that both utilize binding-pocket asparagines for contact or stabilization with the carbohydrate. Pretreatment of whole bacteria with asparaginase resulted in decreased fimbriae-mediated attachment to urinary epitheli...

journal_title：Applied microbiology and biotechnology

authors： Wehner MR,Koch SR,Kindinger L,Nelson N,Cowan MM

更新日期：2004-11-01 00:00:00

abstract：:The first two steps in xylose metabolism are catalyzed by NAD(P)H-dependent xylose reductase (XR) (EC 1.1.1.21) and NAD(P)-dependent xylitol dehydrogenase (XDH) (EC 1.1.1.9), which lead to xylose-->xylitol-->xylulose conversion. Xylitol has high commercial value, due to its sweetening and anticariogenic properties, as...

journal_title：Applied microbiology and biotechnology

authors： Lima LH,das Graças de Almeida Felipe M,Vitolo M,Torres FA

更新日期：2004-11-01 00:00:00

abstract：:Lactococcus lactis subsp. lactis IPLA972 is a wild lactococcal strain suitable as a single starter in the manufacture of dairy products. This strain synthesizes lactococcin 972 (Lcn972), a unique bacteriocin that blocks septum formation. In this work, we report on the conditions to optimize biomass and Lcn972 producti...

journal_title：Applied microbiology and biotechnology

authors： de Rojas AH,Martínez B,Suárez JE,Rodríguez A

更新日期：2004-11-01 00:00:00

abstract：:Oil-producing fungus Mortierella alpina 1S-4 is an industrial strain. To determine its physiological properties and to clarify the biosynthetic pathways for polyunsaturated fatty acids, a transformation system for this fungus was established using a derivative of it, i.e., a ura5- mutant lacking orotate phosphoribosyl...

journal_title：Applied microbiology and biotechnology

authors： Takeno S,Sakuradani E,Murata S,Inohara-Ochiai M,Kawashima H,Ashikari T,Shimizu S

更新日期：2004-09-01 00:00:00

abstract：:A beta-lactamase-free penicillin amidase from Alcaligenes sp. active against various beta-lactams was purified to homogeneity. The enzyme can hydrolyze penicillin G to 6-amino penicillanic acid (6-APA) and furnish penicillin G from 6-APA and phenyl acetic acid by condensation. The penicillin amidase is a heterodimer o...

journal_title：Applied microbiology and biotechnology

authors： Das S,Gayen JR,Pal A,Ghosh K,Rosazza JP,Samanta TB

更新日期：2004-08-01 00:00:00

abstract：:A gratuitous strain was developed by disrupting the GAL1 gene (galactokinase) of recombinant Saccharomyces cerevisiae harboring the antithrombotic hirudin gene in the chromosome under the control of the GAL10 promoter. A series of glucose-limited fed-batch cultures were carried out to examine the effects of glucose su...

journal_title：Applied microbiology and biotechnology

authors： Kim MD,Lee TH,Lim HK,Seo JH

更新日期：2004-08-01 00:00:00

abstract：:Biogranulation is a promising biotechnology developed for wastewater treatment. Biogranules exhibit a matrix microbial structure, and intensive research has shown that extracellular polymeric substances (EPS) are a major component of the biogranule matrix material in both anaerobic and aerobic granules. This paper aim...

journal_title：Applied microbiology and biotechnology

authors： Liu YQ,Liu Y,Tay JH

更新日期：2004-08-01 00:00:00

abstract：:D-Tagatose is a hexoketose monosaccharide sweetener, which is an isomer of D-galactose and is rarely found in nature. Recently, there has been industrial interest in D-tagatose as a low-calorie sugar-substituting sweetener. This article describes the properties and metabolism of tagatose as well as its commercial impo...

journal_title：Applied microbiology and biotechnology

authors： Kim P

更新日期：2004-08-01 00:00:00

abstract：:Although yeasts are known to be able to incorporate a wide variety of exogenous sterols under strict anaerobiosis, no data are available on the assimilation of grapevine phytosterols under enological conditions and the eventual impact on fermentation kinetics. We used therefore a mixture of pure phytosterols, in a pro...

journal_title：Applied microbiology and biotechnology

authors： Luparia V,Soubeyrand V,Berges T,Julien A,Salmon JM

更新日期：2004-07-01 00:00:00

abstract：:Aspergillus oryzae is a fungus used extensively in the fermentation industry. We constructed cDNA microarrays comprising 2,070 highly expressed cDNAs selected from the approximately 6,000 non-redundant expressed sequence tags (ESTs) in the A. oryzae EST database (http://www.aist.go.jp/RIODB/ffdb/index.html). Using the...

journal_title：Applied microbiology and biotechnology

authors： Maeda H,Sano M,Maruyama Y,Tanno T,Akao T,Totsuka Y,Endo M,Sakurada R,Yamagata Y,Machida M,Akita O,Hasegawa F,Abe K,Gomi K,Nakajima T,Iguchi Y

更新日期：2004-07-01 00:00:00

abstract：:The behaviour of dry baker's yeast ( Saccharomyces cerevisiae type II, Sigma) used as biocatalyst without preliminary growth for the synthesis of 2-heptanol from 2-heptanone in a biphasic system is presented. Cells undergo intracellular trehalose consumption with a stoichiometric ethanol production during the first 15...

journal_title：Applied microbiology and biotechnology

authors： Cappaert L,Larroche C

更新日期：2004-06-01 00:00:00

abstract：:Trichoderma harzianum is a widely distributed soil fungus that antagonizes numerous fungal phytopathogens. The antagonism of T. harzianum usually correlates with the production of antifungal activities including the secretion of fungal cell walls that degrade enzymes such as chitinases. Chitinases Chit42 and Chit33 fr...

journal_title：Applied microbiology and biotechnology

authors： Limón MC,Chacón MR,Mejías R,Delgado-Jarana J,Rincón AM,Codón AC,Benítez T

更新日期：2004-06-01 00:00:00

abstract：:The genetic diversity and expression of amoA of autotrophic ammonia oxidizers in wastewater treatment processes were investigated by RT-PCR and denaturing gradient gel electrophoresis (DGGE) in order to identify active components of ammonia-oxidizer populations in a such processes. Ammonia oxidizers, evidenced by the ...

journal_title：Applied microbiology and biotechnology

authors： Ebie Y,Noda N,Miura H,Matsumura M,Tsuneda S,Hirata A,Inamori Y

更新日期：2004-06-01 00:00:00

abstract：:Heterorhabditis bacteriophora is used in biological control of soil-borne insect pests in horticulture and turf. Mass production is carried out in monoxenic liquid cultures pre-incubated with the symbiont of the nematodes, the bacterium Photorhabdus luminescens, before nematode dauer juveniles (DJ) are inoculated. As ...

journal_title：Applied microbiology and biotechnology

authors： Johnigk SA,Ecke F,Poehling M,Ehlers RU

更新日期：2004-06-01 00:00:00

abstract：:An enzyme preparation from the thermophilic fungus Humicola insolens, Ultraflo L, was able to solubilise more than half of the biomass of brewer's grain and wheat bran, two agro-industrial co-products. While almost all of the ferulic acid was released in the free form, the majority of diferulates were released still a...

journal_title：Applied microbiology and biotechnology

authors： Faulds CB,Mandalari G,LoCurto R,Bisignano G,Waldron KW

更新日期：2004-06-01 00:00:00

abstract：:Crude cell extracts of Pseudomonas putida F6 transformed 4-substituted fluoro-, chloro-, bromo- and iodo-phenol without the exogenous addition of cofactors. The rate of substrate consumption decreased with increasing substituent size (F>Cl>Br>I). Biotransformations resulted in greater than 95% utilisation of the halog...

journal_title：Applied microbiology and biotechnology

authors： Brooks SJ,Doyle EM,Hewage C,Malthouse JP,Duetz W,O' Connor KE

更新日期：2004-05-01 00:00:00

abstract：:A cDNA of a structural gene encoding pyranose 2-oxidase (P2O) from Trametes ochracea strain MB49 was cloned into Escherichia coli strain BL21(DE3) on a multicopy plasmid under the control of the trc promoter. Synthesis of P2O was studied in batch cultures in LB or M9-based mineral medium at 28 degrees C. While there w...

journal_title：Applied microbiology and biotechnology

authors： Vecerek B,Maresová H,Kocanová M,Kyslík P

更新日期：2004-05-01 00:00:00

abstract：:This paper studies the initial stages of iridescent tarnishes on titanium heat exchanger tubes in contact with running freshwater on the river Tagus in Spain for up to 20 months. Electrochemical impedance spectroscopy (EIS), scanning electron microscopy [(SEM with energy dispersive X-ray (EDX)] and X-ray photoelectron...

journal_title：Applied microbiology and biotechnology

authors： Moreno DA,Cano E,Ibars JR,Polo JL,Montero F,Bastidas JM

更新日期：2004-05-01 00:00:00

abstract：:Acetobacter xylinum BPR2001 produces water-insoluble bacterial cellulose (BC). Using a pH sensor for the accurate control of pH, which is one of the most critical factors for efficient BC production, is difficult especially in a baffled shake-flask and an airlift reactor. The buffering capacity of corn steep liquor (C...

journal_title：Applied microbiology and biotechnology

authors： Noro N,Sugano Y,Shoda M

更新日期：2004-04-01 00:00:00

abstract：:The first two genes of the threonine pathway, ask and asd, were cloned and sequenced from the aminoethoxyvinylglycine-producing Streptomyces sp. NRRL 5331. The two genes are organized in a bicistronic operon. ask, encoding the apartokinase (ASK), is located upstream from asd. The presence of a ribosome-binding site wi...

journal_title：Applied microbiology and biotechnology

authors： Cuadrado Y,Fernández M,Recio E,Aparicio JF,Martín JF

更新日期：2004-04-01 00:00:00

abstract：:The genes encoding two conjugated polyketone reductases (CPR-C1, CPR-C2) of Candida parapsilosis IFO 0708 were cloned and sequenced. The genes encoded a total of 304 and 307 amino acid residues for CPR-C1 and CPR-C2, respectively. The deduced amino acid sequences of the two enzymes showed high similarity to each other...

journal_title：Applied microbiology and biotechnology

authors： Kataoka M,Delacruz-Hidalgo AR,Akond MA,Sakuradani E,Kita K,Shimizu S

更新日期：2004-04-01 00:00:00

abstract：:Nanobiotechnology raises fascinating possibilities for new analytical assays in various fields such as bioelectronic assembly, biomechanics and sampling techniques, as well as in chips or micromachined devices. Recently, nanotechnology has greatly impacted biotechnological research with its potential applications in s...

journal_title：Applied microbiology and biotechnology

authors： Lee SJ,Lee SY

更新日期：2004-04-01 00:00:00

abstract：:Stirred, pH-controlled anaerobic batch cultures were used to evaluate the in vitro utilisation by canine gut microflora of novel alpha-galactooligosaccharides synthesised with an enzyme extract from a canine Lactobacillus reuteri strain. Fructooligosaccharides (FOS), melibiose and raffinose were used as reference carb...

journal_title：Applied microbiology and biotechnology

authors： Tzortzis G,Goulas AK,Baillon ML,Gibson GR,Rastall RA

更新日期：2004-03-01 00:00:00

abstract：:Forty-six pulp-bleaching fungi were screened for production of key enzymes for conversion of polychlorinated dibenzo-p-dioxins--lignin peroxidase (LiP), manganese peroxidase (MnP), and manganese-independent peroxidase (MiP)--under various conditions that would allow their utilization in the environment. Of 38 MnP-prod...

journal_title：Applied microbiology and biotechnology

authors： Manji S,Ishihara A

更新日期：2004-01-01 00:00:00

abstract：:This review describes the historical development and current state of metals leaching and sulfide mineral biooxidation by the minerals industries. During the past 20 years commercial processes employing microorganisms for mineral recovery have progressed from rather uncontrolled copper dump leaching to mineral oxidati...

journal_title：Applied microbiology and biotechnology

authors： Olson GJ,Brierley JA,Brierley CL

更新日期：2003-12-01 00:00:00

abstract：:Corynebacterium glutamicum CCTCC M201005 produces a novel polygalacturonic acid bioflocculant, REA-11, consisting of galacturonic acid as the main structural unit. A biosynthetic pathway of REA-11 in C. glutamicum CCTCC M201005 was proposed. Evidence for the biosynthetic pathway was provided by: (1) analyzing the resp...

journal_title：Applied microbiology and biotechnology

authors： Li Y,He N,Guan H,Du G,Chen J

更新日期：2003-12-01 00:00:00

abstract：:Ralstonia eutropha H850 was labelled chromosomally with a gfp marker gene encoding for the green fluorescent protein, and designated R. eutropha H850g13. Visual observation of green fluorescent cells under an epifluorescence microscope, and PCR amplification products, confirmed that the bacterium was labelled with gfp...

journal_title：Applied microbiology and biotechnology

authors： Abbey AM,Beaudette LA,Lee H,Trevors JT

更新日期：2003-12-01 00:00:00

abstract：:Peroxidases (PRX, EC 1.11.1.7) are widely distributed across microorganisms, plants, and animals; and, in plants, they have been implicated in a variety of secondary metabolic reactions. In particular, horseradish (Armoracia rusticana) root represents the main source of commercial PRX production. The prxC1a gene, whic...

journal_title：Applied microbiology and biotechnology

authors： Matsui T,Nakayama H,Yoshida K,Shinmyo A

更新日期：2003-10-01 00:00:00

abstract：:Saccharomyces bayanus, being of interest for wine-making, is not as well known as S. cerevisiae and, due to many changes in the yeast classification, accurate data concerning its metabolic activity are difficult to find. In order to produce this yeast as an active dry yeast to be used as a starter in wine-making, its ...

journal_title：Applied microbiology and biotechnology

authors： Serra A,Strehaiano P,Taillandier P

更新日期：2003-10-01 00:00:00

abstract：:Various techniques are used to adjust the flavors of foods and beverages to new market demands. Although synthetic flavoring chemicals are still widely used, flavors produced by biological methods (bioflavors) are now more and more requested by consumers, increasingly concerned with health and environmental problems c...

journal_title：Applied microbiology and biotechnology

authors： Vanderhaegen B,Neven H,Coghe S,Verstrepen KJ,Derdelinckx G,Verachtert H

更新日期：2003-08-01 00:00:00

abstract：:A 2-l (1-l working volume) two-phase partitioning bioreactor (TPPB) was used as an integrated scrubber/bioreactor in which the removal and destruction of benzene from a gas stream was achieved by the reactor's organic/aqueous liquid contents. The organic solvent used to trap benzene was n-hexadecane, and degradation o...

journal_title：Applied microbiology and biotechnology

authors： Davidson CT,Daugulis AJ

更新日期：2003-08-01 00:00:00

abstract：:In Escherichia coli, the enzyme called cysteine desulfhydrase (CD), which is responsible for L-cysteine degradation, was investigated by native-PAGE and CD activity staining of crude cell extracts. Analyses with gene-disrupted mutants showed that CD activity resulted from two enzymes: tryptophanase (TNase) encoded by ...

journal_title：Applied microbiology and biotechnology

authors： Awano N,Wada M,Kohdoh A,Oikawa T,Takagi H,Nakamori S

更新日期：2003-08-01 00:00:00

abstract：:Gene therapy, i.e., the expression in cells of genetic material with therapeutic activity, holds great promise for the treatment of human diseases. A delivery vehicle (vector), of either viral or non-viral origin, must be used to carry the foreign gene into a cell. Viral vectors take advantage of the facile integratio...

journal_title：Applied microbiology and biotechnology

authors： Thomas M,Klibanov AM

更新日期：2003-07-01 00:00:00

abstract：:Bacillus stearothermophilus, a thermophilic bacterium isolated from the Kuwaiti desert, produced a variety of monohydroxy androstene derivatives and an oxidized product when incubated with exogenous testosterone for 24 h at 65 degrees C. The major metabolite was identified as androst-4-en-3,17-dione while minor metabo...

journal_title：Applied microbiology and biotechnology

authors： Al-Awadi S,Afzal M,Oommen S

更新日期：2003-07-01 00:00:00

abstract：:The extracellular production of Escherichia coli phytase was studied in fed-batch fermentations. Two different feeding strategies were compared: control by keeping the glucose concentration constant, and control by keeping a low constant oxygen level in the medium. For the feeding control based on glucose concentratio...

journal_title：Applied microbiology and biotechnology

authors： Kleist S,Miksch G,Hitzmann B,Arndt M,Friehs K,Flaschel E

更新日期：2003-06-01 00:00:00

abstract：:Media and growth conditions were optimized for the microaerobic cultivation of Magnetospirillum gryphiswaldense in flasks and in a fermentor, resulting in significantly increased cell and magnetosome yields, compared with earlier studies. A reliable method was established for the automatic control of low dissolved oxy...

journal_title：Applied microbiology and biotechnology

authors： Heyen U,Schüler D

更新日期：2003-06-01 00:00:00

abstract：:A key factor contributing to the variability in the microbial kinetic parameters reported from batch assays is parameter identifiability, i.e., the ability of the mathematical routine used for parameter estimation to provide unique estimates of the individual parameter values. This work encompassed a three-part evalua...

journal_title：Applied microbiology and biotechnology

authors： Seagren EA,Kim H,Smets BF

更新日期：2003-05-01 00:00:00