Abstract：
:The production of several high value steroid drugs, used as progestational, adrenocortical, estrogenic and contraceptive agents, is mostly derived from 4-androstene-dione (AD) and 1,4 androsta-diene-3,17-dione (ADD). Three Vietnamese phytosterols mixtures named VN-1, VN-2 and VN-3, isolated from soybean oil may be efficiently converted into these key compounds by mycobacterial cells. Their general phytosterol composition was 55.39, 70.55, 70.19% for VN-1, VN-2 and VN-3, respectively. Moreover, values of campesterol, beta-sitosterol and stigmasterol were determined. After 120 h of shaking in suitable culture media and temperature, maximal yield conversion to ADD was higher than 70% and up to 64% to AD, for the various phytosterols mixtures assays. These results may be better when scaling-up such a procedure of phytosterols conversion.
journal_name
J Ind Microbiol Biotechnoljournal_title
Journal of industrial microbiology & biotechnologyauthors
Pérez C,Falero A,Duc HL,Balcinde Y,Hung BRdoi
10.1007/s10295-006-0148-6subject
Has Abstractpub_date
2006-08-01 00:00:00pages
719-23issue
8eissn
1367-5435issn
1476-5535journal_volume
33pub_type
杂志文章abstract：:Physiological stress associated with toluene exposure in batch cultures of Pseudomonas putida 54G was investigated. P. putida 54G cells were grown using a continuous vapor phase feed stream containing 150 ppmv or 750 ppmv toluene as the sole carbon and energy source. Cells were enumerated on non-selective (R2A agar pl...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.2900407
更新日期：1997-06-01 00:00:00
abstract：:Nitrogen deprivation (N-deprivation) is a proven strategy for inducing triacylglyceride accumulation in microalgae. However, its effect on the physical properties of cells and subsequently on product recovery processes is relatively unknown. In this study, the effect of N-deprivation on the cell size, cell wall thickn...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1848-1
更新日期：2016-12-01 00:00:00
abstract：:Trametes versicolor 1 was shown to grow on phenol as its sole carbon and energy source. The culture growth and degradation ability dependence on culture medium pH value was observed. The optimal pH value of a liquid Czapek salt medium was 6.5. The investigated strain utilized completely 0.5 g/l phenol in 6 days. The d...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-008-0412-z
更新日期：2008-11-01 00:00:00
abstract：:The acidification behavior of Lactobacillus bulgaricus and Streptococcus thermophilus for yoghurt production was investigated along temperature profiles within the optimal window of 38-44 degrees C. For the optimal acidification temperature profile search, an optimization engine module built on a modular artificial ne...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-007-0220-x
更新日期：2007-07-01 00:00:00
abstract：:Traditional synthesis of biodiesel competes with food sources and has limitations with storage, particularly due to limited oxidative stability. Microbial synthesis of lipids provides a platform to produce renewable fuel with improved properties from various renewable carbon sources. Specifically, biodiesel properties...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-018-2067-8
更新日期：2018-10-01 00:00:00
abstract：:The Saccharomyces cerevisiae HAP4 gene encodes a transcription activator that plays a key role in controlling the expression of genes involved in mitochondrial respiration and reductive pathways. This work examines the effect of knockout of the HAP4 gene on aerobic ethanol production in a xylose-utilizing S. cerevisia...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-015-1695-5
更新日期：2015-12-01 00:00:00
abstract：:The overall objective of this study is to evaluate the morphological [scanning electron microscopy (SEM)], physicochemical [differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), chemical composition analysis, Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR)], and bi...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-011-1027-3
更新日期：2012-02-01 00:00:00
abstract：:Crude glycerol obtained as a by-product of biodiesel production is a reliable feedstock with the potential to be converted into reduced chemicals with high yields. It has been previously shown that ethanol is the primary product of glycerol fermentation by Escherichia coli. However, few efforts were made to enhance th...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1818-7
更新日期：2016-10-01 00:00:00
abstract：:Genetic research enables the evolution of novel biochemical reactions for the production of valuable chemicals from environmentally-friendly raw materials. However, the choice of appropriate microorganisms to support these reactions, which must have strong robustness and be capable of a significant product output, is ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-017-1956-6
更新日期：2017-08-01 00:00:00
abstract：:Cellulase-free xylan-degrading enzyme preparations from Acrophialophora nainiana, Humicola grisea var. thermoidea and two Trichoderma harzianum strains were used as bleaching agents for Eucalyptus kraft pulp, prior to a chlorine dioxide and alkaline bleaching sequence. In comparison to the control sequence (performed ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj/jim/7000227
更新日期：2002-04-01 00:00:00
abstract：:Anaerobic digestion is a sustainable technology for the treatment of organic waste and production of biogas. Acetoclastic methanogenesis accounts for the majority of methane production in anaerobic digestion. Therefore, sustaining robust acetoclastic methanogens is important for stable process performance. Due to fast...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-015-1632-7
更新日期：2015-08-01 00:00:00
abstract：:Bacteriocins produced by lactic acid bacteria are gaining increased importance due to their activity against undesirable microorganisms in foods. In this study, a concentrated acid extract of a culture of Lactobacillus sakei subsp. sakei 2a, a bacteriocinogenic strain isolated from a Brazilian pork product, was purifi...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-009-0684-y
更新日期：2010-04-01 00:00:00
abstract：:Controlling water activity (a(w)) can significantly impact the growth of Salmonella in poultry litter and manure - a phenomenon that was studied quantitatively using two common serotypes of Salmonella. The quantitative effect of changes in levels of a(w) on Salmonella populations was determined using inoculated, frost...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000116
更新日期：2001-04-01 00:00:00
abstract：:The production of recombinant proteins by Pichia pastoris under AOX1 promoter is usually performed using methanol together with either glycerol or sorbitol as co-substrate. Although both co-substrates have been widely used, comparative studies are scarce. In addition, these comparisons have been performed at different...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1895-7
更新日期：2017-03-01 00:00:00
abstract：:Pentose sugars are increasingly being used in industrial applications of Saccharomyces cerevisiae. Although L-arabinose is a highlighted pentose that has been identified as next-generation biomass, arabinose fermentation has not yet undergone extensive development for industrial utilization. In this study, we integrat...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-019-02233-y
更新日期：2019-12-01 00:00:00
abstract：:Marine sediments from Newfoundland, Canada were explored for biotechnologically promising Actinobacteria using culture-independent and culture-dependent approaches. Culture-independent pyrosequencing analyses uncovered significant actinobacterial diversity (H'-2.45 to 3.76), although the taxonomic diversity of biotech...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1529-x
更新日期：2015-01-01 00:00:00
abstract：:Microbial diversity is fundamental to maintenance and conservation of global genetic resources. As extreme environments are explored, the richness of microbial diversity is increasingly evident. Measures must be taken to estimate, record, and conserve microbial diversity, not only to sustain human health but also to e...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1038/sj.jim.2900390
更新日期：1997-05-01 00:00:00
abstract：:The evolution of the field of biosynthesis from the unravelling of the mode of formation of natural products to the use of such knowledge to create new compounds is reviewed using examples from the author's laboratory. The discussion focuses on the mode of operation of type II (spore pigment PKS) and type I (rifamycin...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1038/sj.jim.7000069
更新日期：2001-09-01 00:00:00
abstract：:The recent exponential growth in industrial aquaculture has led to a huge increase in Artemia biomass production in order to meet increased fish production needs. The present study explores the potential use of salt gradient solar ponds (SGSPs) for production of Artemia nauplii. An SGSP is a basin of water where solar...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-009-0585-0
更新日期：2009-08-01 00:00:00
abstract：:Chalcones, the central precursor of flavonoids, are synthesized exclusively in plants from tyrosine and phenylalanine via the sequential reaction of phenylalanine ammonia-lyase (PAL), cinnamate-4-hydroxylase (C4H), 4-coumarate:coenzyme A ligase (4CL) and chalcone synthase (CHS). Chalcones are converted into the corres...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-003-0061-1
更新日期：2003-08-01 00:00:00
abstract：:Biological synthesis of plant secondary metabolites has attracted increasing attention due to their proven or assumed beneficial properties and health-promoting effects. Phenylpropanoids are the precursors to a range of important plant metabolites such as the secondary metabolites belonging to the flavonoid/stilbenoid...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-011-0954-3
更新日期：2011-10-01 00:00:00
abstract：:The objective of the present study was to measure the production of cutinase by Fusarium oxysporum in the presence of several carbon and nitrogen sources (glycides, fatty acids and oils, and several organic and inorganic nitrogen sources), trying to find a cost-effective substitute for cutin in the culture medium as a...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-007-0266-9
更新日期：2008-01-01 00:00:00
abstract：:Several indigenous Saccharomyces strains from musts were isolated in the Jerez de la Frontera region, at the end of spontaneous fermentation, in order to select the most suitable autochthonous yeast starter, during the 2007 vintage. Five strains were chosen for their oenological abilities and fermentative kinetics to ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-013-1251-0
更新日期：2013-06-01 00:00:00
abstract：:Study of the distribution of the oxygen mass transfer coefficient, k (l) a, for a stirred bioreactor and simulated (pseudoplastic solutions of carboxymethylcellulose sodium salt) bacterial (P. shermanii), yeast (S. cerevisiae), and fungal (P. chrysogenum free mycelia) broths indicated significant variation of transfer...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-010-0930-3
更新日期：2011-09-01 00:00:00
abstract：:The tylE-J region of the tylosin-biosynthetic gene cluster of Streptomyces fradiae contains six open reading frames. The products of tylJ and tylD are nucleoside diphospho (NDP)-deoxyhexose 3-epimerase and NDP-deoxyhexose 4-ketoreductase, respectively, involved in the synthesis of NDP-6-deoxyallose from NDP-4-keto, 6-...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.2900707
更新日期：1999-08-01 00:00:00
abstract：:As one of the major microbes in the soy sauce fermentation, Candida versatilis enriches the flavor and improves the quality of soy sauce. In this study, a combination of five different GC-MS and LC-MS-based metabolome analytical approaches was used to analyze the intracellular, extracellular and whole metabolites of C...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1475-7
更新日期：2014-10-01 00:00:00
abstract：:Microbial fermentation of sugars from plant biomass to alcohols represents an alternative to petroleum-based fuels. The optimal biocatalyst for such fermentations needs to overcome hurdles such as high concentrations of alcohols and toxic compounds. Lactic acid bacteria, especially lactobacilli, have high innate alcoh...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1797-8
更新日期：2016-09-01 00:00:00
abstract：:The exploration of seven physiologically different white rot fungi potential to produce cellulase, xylanase, laccase, and manganese peroxidase (MnP) showed that the enzyme yield and their ratio in enzyme preparations significantly depends on the fungus species, lignocellulosic growth substrate, and cultivation method....
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-008-0454-2
更新日期：2008-11-01 00:00:00
abstract：:The ability of dromedary skim milk to form an acid curd during a lactic acid starter fermentation was investigated. The activity of the starter in dromedary milk was characterized by a longer lag phase ( approximately 5 vs. approximately 1 h) and by an earlier decline phase. This suggests the presence of inhibiting fa...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000111
更新日期：2001-05-01 00:00:00
abstract：:Batch cultures of Ralstonia eutropha in chemically defined media with acetic acid (HAc) as the sole carbon source were conducted to investigate acetate utilization, formation of poly(3-hydroxybutyrate) (PHB) and growth of active biomass (ABM) under different carbon to nitrogen (C/N) weight ratios. The specific acetate...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000097
更新日期：2001-03-01 00:00:00
