Abstract:
:The use of immobilized enzymes has opened the possibility of large scale utilization of NAD(+)-linked dehydrogenases, but the applications of this technique were limited by the necessity of providing the large amounts of NAD(+) required by its stoichiometric consumption in the reaction. After immobilization of alcohol dehydrogenase and intactE. coli by glutaraldehyde in the presence of serum albumin, the respiratory chain was found to be capable of regenerating NAD(+) from NADH. This NAD(+) can be recycled at least 100 times, and thus the method is far more effective than any other, and, moreover, does not require NADH oxydase purification. The total NADH oxidase activity recovered was 10-30% of the initial activity.Although, NADH is unable to cross the cytoplasmic membrane, it was able to reach the active site of NADH dehydrogenase after immobilization. The best yield of NADH oxidase activity with immobilized bacteria was obtained without prior treatment of the bacteria to render them more permeable. The denaturation by heat of NADH oxidase in cells that are permeabilized was similar before and after immobilization. In contrast, the heat denaturation of soluble Β-galactosidase required either a higher temperature or a longer exposure after immobilization. The sensitivity of immobilized NADH oxidase to denaturation by methanol was decreased compared to permeabilized cells. As a result, it is clear that the system can function in the presence of methanol, which is necessary as a solvent for certain water insoluble substrates.
journal_name
Appl Biochem Biotechnoljournal_title
Applied biochemistry and biotechnologyauthors
Burstein C,Ounissi H,Legoy MD,Gellf G,Thomas Ddoi
10.1007/BF02798283subject
Has Abstractpub_date
1981-12-01 00:00:00pages
329-38issue
4eissn
0273-2289issn
1559-0291journal_volume
6pub_type
杂志文章abstract::NADP(+)-dependent isocitrate dehydrogenase from Yarrowia lipolytica CLIB122 (YlIDP) was overexpressed and purified. The molecular mass of YlIDP was estimated to be about 81.3 kDa, suggesting its homodimeric structure in solution. YlIDP was divalent cation dependent and Mg(2+) was found to be the most favorable cofacto...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0373-1
更新日期:2013-09-01 00:00:00
abstract::A full factorial design leading to 20 sets of sorption runs was conducted to study the influence of four variables (bleaching earth and biomass concentrations, pH, and sorption time) on the iron, nickel, and chromium removal from stainless steel effluent using waste biomass from a beverage industry. Similar factor eff...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:91-93:1-9:413
更新日期:2001-04-01 00:00:00
abstract::To facilitate structural studies of receptor-interacting protein 3 (RIP3), we developed a large-scale expression system of a glutathione-S-transferase (GST) fused with an 82 amino acid RIP3 protein in Escherichia coli. RIP3 truncation was subcloned into the pGEX-4T-1 vector and overexpressed in BL21(DE3)RIL cells. The...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/BF02729060
更新日期:2007-05-01 00:00:00
abstract::The objective of present investigation was to study the effect of gut microbiota alteration by oral administration of targeted delivery of pH sensitive cefdinir microspheres to high-fructose-fed (HFD) rats. Rats were fed with a high-fructose diet with or without cefdinir microsphere administration for 30 days. The fec...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-014-0772-y
更新日期:2014-04-01 00:00:00
abstract::Thermoacidophiles are microorganisms capable of optimum growth under a combination of high temperature and low pH. These microorganisms are a rich source of thermo- and acid- active/stable glycosyl hydrolases. Such enzymes could find use as novel biocatalysts in industrial processes, as operation at elevated temperatu...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-020-03233-w
更新日期:2020-07-01 00:00:00
abstract::Hypocrellin A production by Shiraia sp. SUPER-H168 was studied under solid-state fermentation. Corn was found to be the best substrate after evaluating eight kinds of agro-industrial crops and residues. The optimized solid-state fermentation conditions were as follows: inoculum size 3 x 10(6) spores, substrate particl...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-009-8728-3
更新日期:2010-04-01 00:00:00
abstract::Anthracnose is a major disease in Florida hybrid bunch grapes, caused by a fungus viz. Elsinoe ampelina. Florida hybrid bunch grapes are grown in southeastern USA for their superior wine characteristics. However, the effect of anthracnose on grape productivity and wine quality is a major concern to grape growers. Our ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-008-8380-3
更新日期:2009-06-01 00:00:00
abstract::An integrated process of supercritical methanol (SCM) and sodium methoxide catalyst was developed to produce fatty acid methyl esters (FAMEs) via continuous esterification from crude biodiesel. The crude biodiesel with high free fatty acid (FFA) content must be refined to reduce the acid value (AV) for meeting the qua...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-014-1133-6
更新日期:2014-10-01 00:00:00
abstract::The nuclear receptor Rev-erbβ is a potent transcriptional factor whose functional study has been limited by the lack of suitable antibodies against it. To better understand Rev-erbβ's biological roles, we generated five hybridoma cell lines secreting antibodies against human Rev-erbβ in mice immunized with the purifie...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-016-2375-2
更新日期:2017-07-01 00:00:00
abstract::Plant growth and productivity are adversely affected by various abiotic and biotic stress factors. Despite the wealth of information on abiotic stress and stress tolerance in plants, many aspects still remain unclear. Prosopis juliflora is a hardy plant reported to be tolerant to drought, salinity, extremes of soil pH...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-008-8398-6
更新日期:2009-05-01 00:00:00
abstract::Concentrated dilute acid hydrolysate was obtained from hot water extracts of Acer saccharum (sugar maple) and was fermented to ethanol by Pichia stipitis in a 1.3-L-benchtop bioreactor. The conditions under which the highest ethanol yield was achieved were when the air flow rate was set to 100 cm(3) and the agitation ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-011-9285-0
更新日期:2012-09-01 00:00:00
abstract::Lipase-catalyzed esterification of selected phenolic acids with linolenyl alcohols was investigated in selected organic solvent media. The enzyme activity for the esterification of dihydrocaffeic acid with linolenyl alcohol in solvent mixtures of hexane/2-butanone of 75:25 (v/v) and 65:35 (v/v) was 0.88 and 0.47 micro...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:127:1:017
更新日期:2005-10-01 00:00:00
abstract::Plant cell cultures provide a large potential for the production of secondary metabolites. Through the application of different physical and chemical cell stress factors, we investigated the production of the secondary metabolites in plant cell cultures. The effects of pulsed electric field (PEF) and ethephon on growt...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-010-9146-2
更新日期:2011-06-01 00:00:00
abstract::The vegetative insecticidal proteins (VIPs) of Bacillus thuringiensis (Bt) have a broad-spectrum insecticidal activity against Lepidopteran pests and no cross-resistance with the insecticidal crystal protein Cry protein. So there are great potentials for the control of agricultural pests and the resolution of resistan...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s12010-018-2880-6
更新日期:2019-04-01 00:00:00
abstract::The potential carrier role of β-lactoglobulin (β-LG) and its interactions with oxaliplatin were studied using various spectroscopic techniques (fluorescence, UV-visible, and circular dichroism (CD)) in an aqueous medium at two temperatures of 25 and 37 °C in combination with a molecular docking study. Fluorescence mea...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-014-1341-0
更新日期:2015-01-01 00:00:00
abstract::Marine Aspergillus awamori BTMFW032, recently reported by us, produce acidophilic tannase as extracellular enzyme. Here, we report the application of this enzyme for synthesis of propyl gallate by direct transesterification of tannic acid and in tea cream solubilisation besides the simultaneous production of gallic ac...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-011-9162-x
更新日期:2011-07-01 00:00:00
abstract::An animal protein-free medium composed of IPL-41 containing 6 g L(-1) yeastolate ultrafiltrate, 10 g L(-1) glucose, 2 g L(-1) lactose, 5 g L(-1) glutamine, 1% lipid emulsion, and 0.1% Pluronic F-68 was used for producing recombinant proteins in batch mode employing two cell lines, S2AcRVGP2k expressing the G glycoprot...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-010-8918-z
更新日期:2011-01-01 00:00:00
abstract::In this paper, Ni/β-Mo2C(S) and Ni/β-Mo2C(G) were prepared from solution-derived precursor with two different carbon sources (starch and glucose) and tested as anodic noble-metal-free catalysts in air-cathode microbial fuel cells (MFCs). The carburized catalyst samples were characterized by X-ray diffraction (XRD), sc...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-015-1622-2
更新日期:2015-06-01 00:00:00
abstract::In the present investigation, thermophilic fungus Rhizomucor pusillus was used to study biotransformation of antihelmintic drug albendazole to produce its active metabolite, albendazole sulfoxide and novel metabolites of commercial interest. A two-stage fermentation procedure was followed for biotransformation of albe...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-011-9329-5
更新日期:2011-11-01 00:00:00
abstract::The first continuous production system of laminaribiose from sucrose and glucose in a bienzymatic reaction is reported in this study. Immobilized laminaribiose phosphorylase and sucrose phosphorylase were used in a packed bed reactor system comprising of a 3-cm glass column at 35 °C with a steady feeding flow rate of ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-018-2779-2
更新日期:2018-12-01 00:00:00
abstract::Copper (II) oxide nanoparticles (CuO-NPs) have been studied as potential antimicrobial agents, similar to silver or platinum nanoparticles. However, the use of excess NPs is limited by their safety and toxicity in beneficial microflora and human cells. In this study, we evaluated the cytotoxicity of CuO-NPs by coating...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-019-03108-9
更新日期:2020-02-01 00:00:00
abstract::Qualitative and quantitative DNA-based methods were applied to detect genetically modified foods in samples from markets in the Kingdom of Saudi Arabia. Two hundred samples were collected from Al-Qassim, Riyadh, and Mahdina in 2009 and 2010. GMOScreen 35S and NOS test kits for the detection of genetically modified org...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0405-x
更新日期:2013-10-01 00:00:00
abstract::Papain (PA) immobilized onto magnetic nanocrystalline cellulose (PA@MNCC) was successfully fabricated and adopted as an efficient biocatalyst for the synthesis of N-(benzyloxycarbonyl)-alanyl-histidine (Z-Ala-His) dipeptide. Introducing deep eutectic solvents (DESs) as reaction media promoted the synthesis of the Z-Al...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-020-03345-3
更新日期:2020-10-01 00:00:00
abstract::The objective of the present work was to evaluate the metabolic effects induced by the initial glucose concentration (IGC) on the cultivation of Streptococcus zooepidemicus for the production of hyaluronic acid (HA). These effects were monitored along non-controlled pH cultivations, carried out in 250-mL Erlenmeyer fl...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-010-8956-6
更新日期:2010-11-01 00:00:00
abstract::A study was performed regarding the effect of the relation between fill time, volume treated per cycle, and influent concentration at different applied organic loadings on the stability and efficiency of an anaerobic sequencing batch reactor containing immobilized biomass on polyurethane foam with recirculation of the...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-010-9022-0
更新日期:2011-01-01 00:00:00
abstract::Xanthomonas campestris w.t. was used for production of xanthan gum in fermentations with chestnut flour for the first time. Fermentations were carried out with either chestnut flour or its soluble sugars (33.5%) and starch (53.6%), respectively, at 28 degrees C and 200 rpm at initial pH 7.0 in flasks. The effect of ag...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:82:3:175
更新日期:1999-12-01 00:00:00
abstract::The host-pathogen interaction and involvement of calcium (Ca2+) signaling in tuberculosis infection is crucial and plays a significant role in pathogenesis. Ca2+ is known as a ubiquitous second messenger that could control multiple processes and is included in cellular activities like division, motility, stress respon...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s12010-016-2247-9
更新日期:2017-02-01 00:00:00
abstract::Phytases act on phytic acid, an antinutrient factor present in animal feeds, and release inorganic phosphate. We optimized the production parameters for phytase production using Thermoascus aurantiacus (TUB F 43), a thermophilic fungal culture, by submerged fermentation. A semisynthetic medium containing glucose, star...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:118:1-3:205
更新日期:2004-07-01 00:00:00
abstract::A new method without any special devices for direct transformation of linear gene cassettes was developed. Its feasibility was verified through 5'-fluorescent dye (fluorescein isothiocyanate, FITC)-labeled fluorescent tracing and transient expression of a gus reporter gene. Minimal linear gene cassettes, containing ne...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-009-8554-7
更新日期:2009-12-01 00:00:00
abstract::The application of immunoaffinity techniques to subcellular fractionation is reviewed and the basic principles underlying the various methods that have been successfully employed, identified. The requirement for organelle-specific antigens and high-avidity antibodies is discussed, as is the widespread use of indirect ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/BF02798907
更新日期:1986-10-01 00:00:00