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：:Nitrate amendment is normally an effective method for sulfide control in oil field-produced waters. However, this approach has occasionally failed to prevent sulfide accumulation, despite the presence of active nitrate-reducing bacterial populations. Here, we report our study of bulk chemical transformations in microc...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-009-0639-3
更新日期：2009-12-01 00:00:00
abstract：:The ability of bacteria to attach to surfaces and develop into a biofilm has been of considerable interest to many groups in numerous industries, including the medical and food industry. However, little is understood in the critical initial step seen in all biofilm development, the initial bacterial cell attachment to...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-007-0234-4
更新日期：2007-09-01 00:00:00
abstract：:Penicillium strain isolated from citrus fruit was found to produce thermostable polygalacturonases. Optimization of process parameters resulted in high levels of enzyme production after 3 days of incubation at a pH of 5.0 at 30 degrees C in the presence of 1% pectin. The optimum temperature for enzyme activity was 60 ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-008-0375-0
更新日期：2008-09-01 00:00:00
abstract：:Isoprenoids are a large class of natural products with myriad applications as bioactive and commercial compounds. Their diverse structures are derived from the biosynthetic assembly and tailoring of their scaffolds, ultimately constructed from two C5 hemiterpene building blocks. The modular logic of these platforms ca...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-020-02306-3
更新日期：2020-10-01 00:00:00
abstract：:Rapamycin, as a macrocyclic polyketide with immunosuppressive, antifungal, and anti-tumor activity produced by Streptomyces hygroscopicus, is receiving considerable attention for its significant contribution in medical field. However, the production capacity of the wild strain is very low. Hereby, a computational guid...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1880-1
更新日期：2017-02-01 00:00:00
abstract：:Methylomonas sp. strain 16a is an obligate methanotrophic bacterium that uses methane or methanol as the sole carbon source. An effort was made to engineer this organism for astaxanthin production. Upon expressing the canthaxanthin gene cluster under the control of the native hps promoter in the chromosome, canthaxant...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-006-0197-x
更新日期：2007-04-01 00:00:00
abstract：:Burkholderia cepacia complex (BCC) presence has been the cause of recalls of both sterile and non-sterile pharmaceutical products since these opportunistic pathogens have been implicated to cause infections to susceptible individuals. BCC are ubiquitous in nature, but in pharmaceutical settings the most common source ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1442-3
更新日期：2014-07-01 00:00:00
abstract：:Acidophilic microorganisms involved in uranium bioleaching are usually suppressed by dissolved fluoride ions, eventually leading to reduced leaching efficiency. However, little is known about the regulation mechanisms of microbial resistance to fluoride. In this study, the resistance of Acidithiobacillus ferrooxidans ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-016-1827-6
更新日期：2016-10-01 00:00:00
abstract：:Lactobacillus casei Zhang is a widely recognized probiotic bacterium, which is being commercially used in China. To study the gene expression dynamics of L. casei Zhang during fermentation in soymilk, a whole genome microarray was used to screen for differentially expressed genes when grown to the lag phase, the late ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-011-1015-7
更新日期：2012-01-01 00:00:00
abstract：:Ethanol production by K. marxianus in whey from organic cheese production was examined in batch and continuous mode. The results showed that no pasteurization or freezing of the whey was necessary and that K. marxianus was able to compete with the lactic acid bacteria added during cheese production. The results also s...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-010-0771-0
更新日期：2011-02-01 00:00:00
abstract：:The effect of nutrient supplementation of brewery's spent grain (BSG) hydrolysates was evaluated with respect to biomass and xylitol production by Debaryomyces hansenii. For optimal biomass production, supplementation of full-strength BSG hydrolysates required only phosphate (0.5 g l(-1) KH(2)PO(4)), leading to a biom...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-006-0101-8
更新日期：2006-08-01 00:00:00
abstract：:The bacteria causing foaming in activated sludge plants are considered to be hydrophobic, and their hydrophobicity is assumed to be a crucial factor in their foam-forming ability. This study showed no consistent relationship between cell surface hydrophobicity (CSH), as determined by microbial adherence to hydrocarbon...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj/jim/7000241
更新日期：2002-05-01 00:00:00
abstract：:Synthetic wastewater containing alpha-lactose and gelatin was treated in a thermophilic membrane-coupled bioreactor (MBR). Thermophilic (>45 degrees C) treatment represents a potentially advantageous process for high-temperature as well as high-strength industrial wastewaters susceptible to reactor autoheating. Thermo...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000110
更新日期：2001-04-01 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：:Bear bile powder is a precious medicinal material. It is characterized by high content of tauroursodeoxycholic acid (TUDCA) at a ratio of 1.0-1.5 to taurochenodeoxycholic acid (TCDCA). Here, we reported the biotransformation of tauroursodeoxycholic acid (TUDCA) through Escherichia coli engineered with a two-step mimic...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-017-1935-y
更新日期：2017-07-01 00:00:00
abstract：:Liquid phase oxidation process using chelated iron solution is among the most promising techniques for the hydrogen sulfide removal due to its double advantage of waste minimization and resource recovery. Regeneration of chelated iron is a core reaction in this process. Regeneration of chelated iron in acidic solution...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1510-8
更新日期：2014-11-01 00:00:00
abstract：:L-DOPA is a key pharmaceutical agent for treating Parkinson's, and market demand has exploded due to the aging population. There are several challenges associated with the chemical synthesis of L-DOPA, including complicated operation, harsh conditions, and serious pollution. A biocatalysis route for L-DOPA production ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-019-02237-8
更新日期：2019-12-01 00:00:00
abstract：:Our previous work revealed proanthocyanidins (PAs) could pose significant enhancement on the activity of H(+)-ATPase and fermentation efficiency after a transient initial inhibition (Li et al in Am J Enol Vitic 62(4):512-518, 2011). The aim of the present work was to understand the possible mechanism for this regulati...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1517-1
更新日期：2014-12-01 00:00:00
abstract：:Aiming at the industrial production of serogroup C meningococcal vaccine, different experimental protocols were tested to cultivate Neisseria meningitidis C and to investigate the related organic acid release. Correlations were established between specific rates of acetic acid and lactic acid accumulation and specific...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-006-0141-0
更新日期：2006-10-01 00:00:00
abstract：:Nucleoside antibiotics constitute an important family of microbial natural products bearing diverse bioactivities and unusual structural features. Their biosynthetic logics are unique with involvement of complex multi-enzymatic reactions leading to the intricate molecules from simple building blocks. Understanding how...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-015-1636-3
更新日期：2016-03-01 00:00:00
abstract：:An efficient fermenting microorganism for bioethanol production from lignocellulose is highly tolerant to the inhibitors released during pretreatment and is able to ferment efficiently both glucose and xylose. In this study, directed evolution was employed to improve the xylose fermenting Saccharomyces cerevisiae F12 ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-010-0768-8
更新日期：2010-11-01 00:00:00
abstract：:An immunosuppressant tacrolimus-producing strain of Streptomyces sp. TST8 was isolated and developed by the TS corporation in Korea using the sequential adaptation of media containing tacrolimus (600-1600 mg/l). The aim of the tacrolimus sequential adaptation protocol was to select those cells with tacrolimus resistan...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-009-0634-8
更新日期：2009-12-01 00:00:00
abstract：:A simple fed-batch process was carried out using constant and variable specific growth rates for high-cell-density cultivation of Escherichia coli BL21 (DE3) expressing human interferon-gamma(hIFN-gamma). The feeding rate was adjusted to achieve an appropriate specific growth rate. The dissolved oxygen level was maint...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-004-0117-x
更新日期：2004-02-01 00:00:00
abstract：:A breeding approach combining genome shuffling with multiple antibiotic-resistance including gentamicin, rifampin and lincomycin, was developed in this research to improve the poly-γ-L-diaminobutanoic acid (γ-PAB) production in Bacillus pumilus LS-1. By this unique strategy, recombinants from the third round of genome...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-020-02315-2
更新日期：2020-12-01 00:00:00
abstract：:Twenty years ago, the first complete gene cluster encoding the actinorhodin biosynthetic pathway was cloned and characterized. Subsequently, the gene clusters encoding the biosynthetic pathways for many antibiotics were isolated. In the past decade, breakthroughs in technology brought that generation of rationally des...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-004-0131-z
更新日期：2004-03-01 00:00:00
abstract：:We report the purification and characterization of two thermophilic xylanases from the mesophilic bacteria Cellulomonas flavigena grown on sugarcane bagasse (SCB) as the only carbon source. Extracellular xylanase activity produced by C. flavigena was found both free in the culture supernatant and associated with resid...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-006-0202-4
更新日期：2007-04-01 00:00:00
abstract：:Huperzine A (HupA), a naturally occurring lycopodium alkaloid, is a potent, highly specific and reversible inhibitor of acetylcholinesterase and is a potential treatment for Alzheimer's disease. However, isolating HupA from Huperziaceae plants is inefficient; thus, extracting this compound from endophytic fungi may be...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-014-1461-0
更新日期：2014-07-01 00:00:00
abstract：:Using a simple method to introduce genetic modifications into the chromosome of naturally nontransformable Bacillus, a set of marker-free inosine-producing and 5-aminoimidazole-4-carboxamide (AICA) ribonucleoside-producing Bacillus amyloliquefaciens strains has been constructed. These strains differ in expression leve...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-010-0829-z
更新日期：2011-01-01 00:00:00
abstract：:Actinomycetes continue to be important sources for the discovery of secondary metabolites for applications in human medicine, animal health, and crop protection. With the maturation of actinomycete genome mining as a robust approach to identify new and novel cryptic secondary metabolite gene clusters, it is critical t...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s10295-015-1682-x
更新日期：2016-03-01 00:00:00
abstract：:The survival of a Sphingomonas species that was introduced into pentachlorophenol (PCP)-contaminated soil was monitored with two complementary methods, a respiration-based assay and a most probable number (MPN) technique. Sphingomonas chlorophenolicastrain RA2 is a PCP-mineralizing bacterium that was introduced into s...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.2900718
更新日期：1999-10-01 00:00:00
