Abstract:
:During the course of a lifetime, it has been calculated that we may consume between 100 and 700 tons of food. For the average British citizen, this is likely to include some 550 poultry, 36 pigs, 36 sheep, eight oxen, 10000 eggs and dairy products (milk, butter cheese, etc.) equivalent to 18 tonnes of milk. As if that were not sufficient enough a challenge, the homeostasis within the intestine is further complicated by the presence of 10(5)-10(11) bacteria (pathogenic and non-pathogenic) per gram of mucus and the constant turnover of gut epithelial cells. Given such a magnitude of challenge, which, at least in health is heavily biased in favour of harmless antigens, it can be reasonably hypothesised that the default response of the intestinal mucosal immune system would appear to be set heavily in favour of non-responsiveness and oral tolerance. The purpose of this review is to briefly describe recent progress from studies of the pig that support this hypothesis and to discuss the implications for future mucosal vaccine design.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Stokes CR,Bailey Mdoi
10.1016/s0168-1656(00)00299-6subject
Has Abstractpub_date
2000-09-29 00:00:00pages
51-5issue
1-2eissn
0168-1656issn
1873-4863pii
S0168-1656(00)00299-6journal_volume
83pub_type
杂志文章,评审abstract::The extraction of 13-hydroperoxide-lyase activity from mint leaves as well as its use for C6-aldehyde production was studied in this work. The enzyme cleaves 13(S)-hydroperoxy-C18 fatty acids into C6-aldehyde and C12-oxo-acid. Two mint species were tested: Mentha veridis and Mentha pulegium. The headspace injection me...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2004.03.005
更新日期:2004-07-01 00:00:00
abstract::The use of high capacity micron-sized non-porous magnetic metal chelator adsorbents for the direct recovery of a recombinant metal-binding protein from crude liquors is described. Selectivity and interaction strength of magnetic chelator particles were assessed using a set of native proteins with known behaviour towar...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(97)01688-x
更新日期:1997-04-04 00:00:00
abstract::This work is related to the set-up of overflowing exponential fed-batch cultures (O-EFBC) derived from carbon limited EFBC dedicated to the production of mycosubtilin, an antifungal lipopeptide belonging to the iturin family. O-EFBC permits the continuous removal of the product from the bioreactor achieving a complete...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2007.05.025
更新日期:2007-08-01 00:00:00
abstract::The effect of an additional carbon source, lactate, on Penicillium camembertii growth on glutamate as both carbon and nitrogen sources was examined. Glutamate (and lactate) was present in excess in both media. Throughout the whole culture, similar growth time-courses were recorded on both media, indicating the absence...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2004.07.007
更新日期:2004-11-09 00:00:00
abstract::A rapid quantitative analysis method for murine endothelin-1 (ET-1) and vasoactive intestinal contractor (VIC) gene expression levels was established using a real-time polymerase chain reaction (PCR). We designed primer pairs and TaqMan probes specific for murine prepro-ET-1 (PPET-1) and prepro-VIC (PPVIC) genes, base...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(00)00342-4
更新日期:2001-11-30 00:00:00
abstract::Using an RT-PCR approach a cDNA clone, designated Ms-Rac4 and putatively coding for a small GTPase was isolated from Medicago sativa. Ms-Rac4 and the earlier described Ms-Rac1 [Mol. Gen. Genet. 263 (2000) 761] belong to the class of GTP-binding Rho of plants (Rop) proteins. At the amino acid level they display all con...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2004.04.030
更新日期:2004-08-26 00:00:00
abstract::In the present study we show that recombinant bacterial CotA-laccase from Bacillus subtilis is able to decolourise, at alkaline pH and in the absence of redox mediators, a variety of structurally different synthetic dyes. The enzymatic biotransformation of the azo dye Sudan Orange G (SOG) was addressed in more detail ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2008.09.001
更新日期:2009-01-01 00:00:00
abstract::The present work describes the development of a novel direct screening method, assayed in 96-well format, for evaluation of enzymatic alkyl glycoside production in a hexanol-water two-phase system. Alkyl glycosides are surfactants with a range of applications and with good biodegradability and low toxicity. Enzymatic ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2009.11.005
更新日期:2010-01-15 00:00:00
abstract::The efficient separation of Corynebacterium glutamicum cells from culture medium by size exclusion chromatography (SEC) is presented. Residue analysis demonstrated that this method effectively depletes extracellular compounds. For evaluation, SEC was compared with the common methods cold methanol treatment, fast centr...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2010.08.016
更新日期:2011-07-10 00:00:00
abstract::The secreted pore-forming toxin listeriolysin O (LLO) is an essential virulence factor that allows the food-borne bacterial pathogen Listeria monocytogenes to escape from the phagocytic vacuole and reach the host cytosol. This protein belongs to the group of cholesterol-binding sulfhydryl-activated toxins, expressed b...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2003.10.023
更新日期:2004-04-08 00:00:00
abstract::Aqueous two-phase systems allow for the unequal distribution of proteins and other molecules in water-rich solutions containing phase separating polymers or surfactants. One approach to improve the partitioning properties of recombinant proteins is to produce the proteins as fused to certain peptide tags. However, the...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(01)00383-2
更新日期:2002-01-31 00:00:00
abstract::Many representatives of the order Actinomycetales are prolific producers of thousands of biologically active secondary metabolites. Actinomycetes from terrestrial sources have been studied and screened since the 1950s, yielding many important anti-infective and anti-cancer drugs. However, frequent re-discovery of the ...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.jbiotec.2011.06.002
更新日期:2012-04-30 00:00:00
abstract::Oxygen tension regulates the biological characteristics of hematopoietic stem and progenitor cells (HSPCs) by modulating intracellular reactive oxygen species (ROS). To better understand oxygen tension mechanism on HSPCs culture, gene expression analysis of human CD34(+)CD38(-) HSPCs was performed using microarrays. T...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2012.01.017
更新日期:2012-04-15 00:00:00
abstract::Pure wine yeast cultures are increasingly used in winemaking to perform controlled fermentations and produce wine of reproducible quality. For the genetic manipulation of natural wine yeast strains dominant selective markers are obviously useful. Here we demonstrate the successful use of the mutated PDR3 gene as a dom...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(01)00346-7
更新日期:2001-12-14 00:00:00
abstract::Glycolate(GL)-based polyesters were for the first time produced in the recombinant Escherichia coli fatty acid β-oxidation pathway reinforcing mutant LS5218, using extracellularly added GL as a monomer precursor. Cells expressing a Ser325Thr/Gln481Lys mutant of polyhydroxyalkanoate synthase (PhaC1STQK) from Pseudomona...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2011.07.040
更新日期:2011-12-10 00:00:00
abstract::The fed-batch process for commercial production of riboflavin (vitamin B2) was optimized on-line using model-predictive control based on artificial neural networks (ANNs). The information required for process models was extracted from both historical data and heuristic rules. After each cultivation the process model w...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(00)00211-x
更新日期:2000-04-14 00:00:00
abstract::The purification of human antibodies in an aqueous two-phase system (ATPS) composed of polyethylene glycol (PEG) 6000 and phosphate was optimised by surface response methodology. A central composite design was used to evaluate the influence of phosphate, PEG and NaCl concentration and of the pH on the purity and extra...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2007.04.002
更新日期:2007-10-31 00:00:00
abstract::Superoxide dismutases are ubiquitous enzymes which play an important role in protecting cells against oxidative damage and which have also been shown to contribute to the pathogenicity of many bacterial species. Here we demonstrate that Vibrio cholerae, the causative agent of cholerae, expresses an active periplasmic ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2004.01.002
更新日期:2004-04-08 00:00:00
abstract:BACKGROUND:In recent years, several mass spectrometry-based omics technologies emerged to investigate qualitative and quantitative changes within thousands of biologically active components such as proteins, lipids and metabolites. The research enabled through these methods potentially contributes to the diagnosis and ...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.jbiotec.2017.05.016
更新日期:2017-11-10 00:00:00
abstract::A general strategy to identify and quantify sample molecules in dilute solution employing a new spectroscopic method for data registration and specific burst analysis denoted as multi-parameter fluorescence detection (MFD) was recently developed. While keeping the experimental advantage of monitoring single molecules ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(00)00412-0
更新日期:2001-04-13 00:00:00
abstract::Glutamate dehydrogenase is a central enzyme connecting nitrogen and carbon metabolism via its precursors ammonium and oxoglutarate and its product glutamate. In Corynebacterium glutamicum glutamate dehydrogenase is especially important, since it is a key enzyme for the biotechnological production of the flavour enhanc...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2009.04.007
更新日期:2009-06-15 00:00:00
abstract::The growth, the alkaloid production, as well as the scopolamine/hyoscyamine ratio of two clones of belladonna hairy roots were studied. The effects of nitrate and ammonium concentrations on these cultures were investigated. A rise in ammonium concentration caused the decline of the hairy roots, while nitrate had a mar...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(00)00372-2
更新日期:2001-01-23 00:00:00
abstract::A pair of genes designated parA and parB are encoded by many low copy number plasmids and bacterial chromosomes. They work with one or more cis-acting sites termed centromere-like sequences to ensure better than random predivisional partitioning of the DNA molecule that encodes them. The centromere-like sequences nucl...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/s0168-1656(01)00293-0
更新日期:2001-09-13 00:00:00
abstract::Gene farming is one of the most promising areas in modern biotechnology. To assay the potential usefulness of transgenic rabbits as bioreactors, one call embryos were microinjected with a chimeric gene comprising 5' sequences from mouse whey acidic protein gene (mWAP) linked to the human growth hormone (hGH) gene. Tra...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/0168-1656(95)00026-m
更新日期:1995-05-15 00:00:00
abstract::Intracellular and extracellular proteome analysis was carried out by combined two-dimensional gel electrophoresis and mass spectrometric analysis (2DE/MS) for high cell density fed-batch culture of recombinant Bacillus megaterium strains. In the early feeding phase with a constant growth rate of 0.12h(-1) under glucos...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2006.05.005
更新日期:2006-11-10 00:00:00
abstract::Heparan sulfate (HS) is a cell surface carbohydrate polymer modified with sulfate moieties whose highly ordered composition is central to directing specific cell signaling events. The ability of the cell to generate these information rich glycans with such specificity has opened up a new field of "heparanomics" which ...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/j.jbiotec.2007.01.022
更新日期:2007-04-30 00:00:00
abstract::We constructed a plasmid, designated pNPP126, containing a DNA sequence encoding a fusion protein composed of Bacillus amyloliquefaciens neutral protease prepeptide (signal peptide) and human pancreatic secretory trypsin inhibitor (hPSTI), where the mature hPSTI is accurately fused to the 3'-terminal of the prepeptide...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/0168-1656(92)90094-p
更新日期:1992-04-01 00:00:00
abstract::Oxygen is a key substrate in animal cell metabolism. It has been reported that the oxygen uptake rate (OUR) is a good indicator of cellular activity, and even under some conditions, a good indicator of the number of viable cells. The measurement of OUR is difficult due to many different reasons. In particular, the ver...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/s0168-1656(98)00046-7
更新日期:1998-08-12 00:00:00
abstract::Chromatographic discs were investigated for their potential to substitute for the hitherto used cartridges in heterogeneous flow injection analysis. Originally designed for fast high performance liquid chromatography (HPLC) of biopolymers, the discs combine reliability with speed and resolution. This together with the...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(98)00181-3
更新日期:1999-03-26 00:00:00
abstract::New methods for an extended physiological characterization of yeast at a microtiter plate scale were applied to 27 deletion mutants of Saccharomyces cerevisiae cultivated on glucose and galactose as sole carbon sources. In this way, specific growth rates, specific rates of glucose consumption and ethanol production we...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2007.08.043
更新日期:2007-12-01 00:00:00