Abstract：
:In this report, Gluconobacter strains were screened for coenzyme Q10 (CoQ10) production. A thermotolerant strain, Gluconobacter japonicus FM10, was eventually employed for CoQ10 production optimization. To do so, a two-step optimization strategy was used. The first step focused on biomass increase and the second step focused on increase in CoQ10 production. Factors including temperature, pH, carbon, and nitrogen sources were optimized at the first step, and temperature, pH, and aeration were optimized at the second step. The batch culture fermentation was used with the optimized factors of the first phase (30 °C, pH 6.5, D-sorbitol, and yeast extract-peptone as the carbon and nitrogen sources). After 18 h, the temperature, pH, and aeration were shifted to the optimized values of the second step (36 °C, pH 7, and no aeration). By this strategy, the dry cell mass (17.1 g/L) and CoQ10 (23.2 mg/L) were obtained after 20 h, which the latter was 2.3 times higher than that of the first step of optimization. Among the conditions tested, carbon source was the most important factor on the cell growth at the first step while no aeration was the key factor for CoQ10 production in the second step of optimization.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Moghadami F,Fooladi J,Hosseini Rdoi
10.1007/s12223-018-0666-4subject
Has Abstractpub_date
2019-07-01 00:00:00pages
471-479issue
4eissn
0015-5632issn
1874-9356pii
10.1007/s12223-018-0666-4journal_volume
64pub_type
杂志文章abstract：:The effects of pH on denitrifying enzyme activity (DEA) and on the ratio of the denitrification products, N(2)O and N(2), were determined in three pasture soils differing in cattle impact. The linkage between intrinsic differences in the denitrifying communities and pH effects on relative N(2)O production was also ass...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0045-x
更新日期：2011-05-01 00:00:00
abstract：:The submerged culture of the Claviceps purpurea strain studied was polymorphous. In the process of alkaloid synthesis, cytodifferentiation preceded biochemical differentiation. The onset of the alkaloid phase was characterized by: predominance of chlamydospores in the culture, the presence of vegetative cells with red...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876766
更新日期：1975-01-01 00:00:00
abstract：:Biodegradation of two amphiphilic "soft" antimicrobially active derivatives of lauric (dodecanoic) acid, a quaternary ammonium salt and an amine oxide bearing an amide or ester group, was followed using microorganisms from activated sludge. Primary biodegradation was determined by ion-selective electrodes, total biode...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814548
更新日期：1993-01-01 00:00:00
abstract：:Phosphatidylcholine is one of the most frequent phospholipid components of the inner mitochondrial membrane of Neurospora crassa. Quantitative analysis of phosphlipids of the wild strain of Neurospora crassa and of its two cho mutants showed that these strains did not significantly differ in the content of phosphatidy...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02879763
更新日期：1982-01-01 00:00:00
abstract：:When investigating the effect of aeration on the utilization of a lipid substrate from the cultivation broth and production of salinomycin in Streptomyces albus it was demonstrated that a higher aeration results in a better utilization of soya oil and a higher production of the antibiotic. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02879490
更新日期：1983-01-01 00:00:00
abstract：:Strains of Rhodospordium torloides produced two peptides into the culture filtrate. Peptide I contained 6 amino acids and peptide II contained 5 amino acids. The peptides however, are, not homologous to the alpha-factor, and become assimilated at a later phase of growth. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876614
更新日期：1980-01-01 00:00:00
abstract：:A gram-negative bacterium GXGL-4A was originally isolated from maize roots. It displayed nitrogen-fixing (NF) ability under nitrogen-free culture condition, and had a significant promotion effect on cucumber growth in the pot inoculation test. The preliminary physiological and biochemical traits of GXGL-4A were charac...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0608-1
更新日期：2018-11-01 00:00:00
abstract：:Enterococcus faecalis is a ubiquitous bacterium of the gut that is observed in persistent periradicular infections. Its pathogenicity is associated with biofilm formation and the ability to survive under nutrient-poor (starvation) conditions. However, characteristics of chemical composition of biofilm cells developed ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-014-0319-1
更新日期：2014-09-01 00:00:00
abstract：:The properties of the 37400 oncogenic strain of Agrobacterium tumefaciens are described. This strain was derived from the VI lysogenic strain originally isolated by Hamilton from a Zinnia elegans tumour. Strain 37400 has a number of properties which render it suitable for quantitative and genetic studies. It is cured ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876963
更新日期：1976-01-01 00:00:00
abstract：:For the first time, it was reported in France a cluster of autochthonous severe community-acquired (CA) infections due to the USA300 methicillin-resistant Staphylococcus aureus (MRSA) clone. The three cases belonged to the same family without any identified clue of abroad importation pathway. The domestic spread of US...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-014-0322-6
更新日期：2014-11-01 00:00:00
abstract：:Cultures of 33 basidiomycete strains out of 35 tested were viable with unchanged characteristics after four years of maintenance on perlite in cryovials. These cultures can be a good substitute for agar cultures in long-term maintenance of fungi. For comparison, the storage under oil was evaluated but it turned out to...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-008-0084-0
更新日期：2008-01-01 00:00:00
abstract：:Bacillus subtilis strains expressing listeriolysin O (LLO) and simultaneously LLO and p60 protein were constructed. The effect of p60 protein on hemolytic activity and on the invasion of professional phagocytes was demonstrated in the absence of other virulence factors of L. monocytogenes. The hemolytic activity of LL...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02931440
更新日期：2005-01-01 00:00:00
abstract：:The possibility of utilizing derivatives of 4-methylumbelliferone (4-MUBF) for the determination of activity of enzymes from the group of hydrolyses was tested in 20 strains of 12 species of mycobacteria. The method proved to be suitable especially for determination of arylsulphatase, beta-D-galactose and acid phospha...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876698
更新日期：1980-01-01 00:00:00
abstract：:Candidiases, infections caused by germination forms of the Candida fungus, represent a heterogeneous group of diseases from systemic infection, through mucocutaneous form, to vulvovaginal form. Although caused by one organism, each form is controlled by distinct host immune mechanisms. Phagocytosis by polymorphonuclea...
journal_title：Folia microbiologica
pub_type： 杂志文章,评审
doi：10.1007/BF02931313
更新日期：2007-01-01 00:00:00
abstract：:Using simultaneous fusion of protoplasts of three strains the auxotrophic K3 killer designated MH1 was prepared at a very low frequency and further employed for the transfer of the K3 killer character into a commercial wine yeast. A novel Saccharomyces Bratislava 1K3 strain with desirable technological and anti-yeast ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02814566
更新日期：1992-01-01 00:00:00
abstract：:The newly described type strains Arcanobacterium pinnipediorum DSM 28752T and Arcanobacterium wilhelmae DSM 102162T, initially isolated from an anal swab of a harbor seal (Sammra et al. Int J Syst Evol Microbiol 65:4539-4543, 2015) and the genital tract of a rhinoceros (Sammra et al. Int J Syst Evol Microbiol 67:2093-...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0610-7
更新日期：2018-11-01 00:00:00
abstract：:Using phenol--water extraction, a lipopeptidopolysaccharide complex (LPPS) was isolated from Listeria monocytogenes. Some biological and immunological properties of LPPS were compared with lipopolysaccharide isolated by the same procedure from Salmonella typhimurium. LPPS possesses low pyrogenicity, but the immunologi...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02923515
更新日期：1985-01-01 00:00:00
abstract：:Enzyme synthesis of tryptophan from indole, pyruvate and ammonium salts was studied using Escherichia coli cells exhibiting a significant tryptophanase activity. In addition to the effect of cultivation medium composition and cultivation conditions, factors affecting the course of the conversion were investigated. Pro...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02820485
更新日期：1990-01-01 00:00:00
abstract：:Mathematical expressions were derived for the dilution rate and concentration of algae determining the maximum biomass production in a semicontinuous algal culture. ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02926655
更新日期：1979-01-01 00:00:00
abstract：:Over the years, quinones or its derivatives have been extensively studied due to their broad therapeutic spectrum. However, due to the significant structural differences between the individual naturally occurring quinones, investigation of the precise mechanism of their action is essential. In this context, we have an...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-019-00722-2
更新日期：2020-02-01 00:00:00
abstract：:The effect of the newly synthesized phosphonic compound dibutyl 2-octylamino-2-propanephosphonate (DBOP) on the growth of the aquatic plant Spirodela oligorrhiza and stability of red blood cells (RBC) and planar lipid membranes (BLM) was studied to determine its physiological activity and, if possible, correlate this ...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02908944
更新日期：2000-01-01 00:00:00
abstract：:Extrusion of metabolites (glycerol, lactic, malic, and succinic acid) during the medium acidification caused by resting baker's yeast supplied with 200 mM glucose was studied under aerobic and anaerobic conditions and in the absence and presence of 14 mM KCl. The maximum levels of glycerol and of the sum of acids (abo...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02876611
更新日期：1980-01-01 00:00:00
abstract：:Candida bracarensis is an emerging cryptic species within the Candida glabrata clade. To date, little is known about its epidemiology, virulence, and antifungal susceptibility. This study documents the occurrence of C. bracarensis for the first time in Mexico and focuses on its in vitro production of hydrolytic enzyme...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-018-0592-5
更新日期：2018-07-01 00:00:00
abstract：:Fungal cells of Aureobasidium pullulans ATCC 201253 were immobilized by entrapment in chitosan beads, and the immobilized cells were investigated for their ability to produce the polysaccharide pullulan using batch fermentation. The 1% chitosan-entrapped fungal cells were capable of producing pullulan for two cycles o...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-011-0048-7
更新日期：2011-07-01 00:00:00
abstract：:Ten thermophilic Gram-positive bacteria were isolated from various soils of Saudi Arabia. The strains are spore-forming rods belonging to the species Bacillus stearothermophilus. The cells are motile, strictly aerobic, catalase and oxidase positive. The sporangia appear to be swollen and their position varies from ter...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02927328
更新日期：1981-01-01 00:00:00
abstract：:Asymptomatic uropathogenic Escherichia coli (UPECs) are the leading cause of asymptomatic bacteriuria (ABU) in humans. So this study aimed to identify and characterize ABU UPECs from hospitalized patients of Kolkata, India, with respect to their antibiogram profile, phylogeny, pathogenicity islands, and virulence fact...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/s12223-019-00685-4
更新日期：2019-07-01 00:00:00
abstract：:Strains ofRhodotorula sp.,Candida spp. andLangermania sp. cultivated on polyunsaturated oil preferentially incorporated more unsaturated fatty acids. These fatty acids were used mainly for growth needs whereas the saturated ones accumulated in the microbial cell. The cellular oil and the remaining oil in the culture h...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02898718
更新日期：1997-04-01 00:00:00
abstract：:Investigation of the dependence of cell yield of Candida boidinii in a chemostat and specific growth rate in a turbidostat on temperature was carried out using methanol as substrate. Each of the curves obtained had only one maximum, the optimum temperature for yield (Ys) and for specific growth rate (micron) being som...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02885600
更新日期：1977-01-01 00:00:00
abstract：:The effect of dental plaque bacteria on LFA-1 beta expression on peripheral blood leukocytes was studied in 20 patients with early-onset periodontitis and in 10 healthy controls. Stimulation of PMN with selected dental plaque bacteria which play a role in the pathogeny of periodontitis significantly increased the expr...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02815697
更新日期：1996-01-01 00:00:00
abstract：:Almost all dried vegetative trichomes ofAnabaena iyengarii, Westiellopsis prolifica andNostochopsis lobatus died within 1 h, while those ofOscillatoria acuminata retained viability to some extent for 1 d under similar storage conditions. The viability of dried vegetative trichomes ofO. acuminata decreased about equall...
journal_title：Folia microbiologica
pub_type： 杂志文章
doi：10.1007/BF02903715
更新日期：1999-01-01 00:00:00
