Abstract:
:Eighty-nine cultured Pseudomonas species isolated from the sediment and water samples collected from five industrial Red Sea regions that have been affected by petroleum and industry. Genotypic (exoT, exoS, exoU, exoY, lasA, lasB, rhlA, rhlB, Pf1, PAGI-1, -2, and -3) and phenotypic (DNase, elastase, lipase, protease, siderophore, antibiotic resistance patterns) characteristics were determined. Out of these isolates, nine Pseudomonas isolates were selected as the hyperactive virulence factors producers along with highly resistant pattern against all antibiotics of different classes included in this study. They were subjected to phenotypic and chemotypic characterization as well as molecular identification through 16S rRNA gene amplification and sequencing. The bioactive metabolites of these nine strains were extracted by ethyl acetate followed by evaluating their cytotoxic activity toward liver tissues, kidney tissues, and other biochemical activities in rat. Both EGY6 and EGY8 caused the highest significant reduction in the levels of packed cell volume (PCV), red blood cell count (RBC), and hemoglobin (Hb), which indicate that these Pseudomonas strain metabolites could cause anemia and toxic effects on hematological values in animals that were infected with them. Rats treated with the most toxic extract, EGY8, showed severe histopathological alterations in liver and kidney.
journal_name
Appl Biochem Biotechnoljournal_title
Applied biochemistry and biotechnologyauthors
El-Gendy MMAA,Al-Zahrani HAA,Abozinadah NY,El-Bondkly AMAdoi
10.1007/s12010-017-2553-xsubject
Has Abstractpub_date
2018-01-01 00:00:00pages
323-349issue
1eissn
0273-2289issn
1559-0291pii
10.1007/s12010-017-2553-xjournal_volume
184pub_type
杂志文章abstract::Chitosan/hydroxyapatite composite microparticles were prepared by a solid-in-water-in-oil emulsification cross-linking method. The characteristics and activity in presence of simulated body fluid for 14 and 21 days were investigated. The size distribution, surface morphology, and microstructure of these biomaterials w...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-012-9870-x
更新日期:2012-11-01 00:00:00
abstract::For producing a large quantity of human nerve growth factor beta (hNGF-beta), the recombinant adenovirus containing an expression cassette of hNGF-beta complementary DNA gene was constructed and then instilled directly into goats' mammary glands. The recombinant hNGF-beta was detected in the milk. The maximal expressi...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-008-8346-5
更新日期:2009-06-01 00:00:00
abstract::Stachybotrys microspora is a filamentous fungus characterized by the secretion of multiple hydrolytic activities (cellulolytic and non-cellulolytic enzymes). The production of these biocatalysts was studied under submerged culture using glucose, cellulose, and wheat bran as carbon sources. Endoglucanases, pectinases, ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0608-1
更新日期:2014-02-01 00:00:00
abstract::HbA1c test has been widely used to evaluate glycemic control in patients with diabetes. However, there are controversial results regarding the value of HbA1c in the diagnosis of diabetes mellitus (DM). The present study investigates the diagnostic effectiveness of HbA1c in a large patient group. The oral glucose toler...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章,多中心研究
doi:10.1007/s12010-019-03080-4
更新日期:2020-01-01 00:00:00
abstract::Performance of microbial carbon capture cells (MCCs), having a low-cost clayware separator, was evaluated in terms of wastewater treatment and electricity generation using algae Chlorella pyrenoidosa in MCC-1 and Anabaena ambigua in MCC-2 and without algae in a cathodic chamber of MCC-3. Higher power production was ac...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-017-2485-5
更新日期:2017-11-01 00:00:00
abstract::The production of biodiesel from Scenedesmus algal oil is one of the best alternative forms of liquid fuel production from biomass to petrol diesel. Biodiesel plays a significant role in the carbon sequestration process during cultivation. Scenedesmus algal species was isolated and cultured in a bold basal medium by u...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-019-03149-0
更新日期:2020-04-01 00:00:00
abstract::UDPG pyrophosphatase (UGPase) plays an important role in carbohydrate metabolism, catalyzing a reversible production of uridine diphosphate glucose (UDPG) and pyrophosphate (PPi) from Glc-1-P and UTP. UGPase gene from Aureobasidium pullulans NRRL Y-12974 was cloned, overexpressed in Escherichia coli. The recombinant U...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-015-1934-2
更新日期:2016-03-01 00:00:00
abstract::The potential of dilute-acid prehydrolysis as a pretreatment method for sugarcane bagasse, rice hulls, peanut shells, and cassava stalks was investigated. The prehydrolysis was performed at 122 degrees C during 20, 40, or 60 min using 2% H(2)SO(4) at a solid-to-liquid ratio of 1:10. Sugar formation increased with incr...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-007-9063-1
更新日期:2007-04-01 00:00:00
abstract::The present study involved strategies for enhancement in in vitro azadirachtin (commercially used biopesticide) production by hairy root cultivation of Azadirachta indica. Improvement in the azadirachtin production via triggering its biosynthetic pathway in plant cells was carried out by the exogenous addition of prec...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0664-6
更新日期:2014-02-01 00:00:00
abstract::Pretreatment-induced structural alteration is critical in influencing the rate and extent of enzymatic saccharification of lignocellulosic biomass. The present work has investigated structural features of rice straw pretreated by hot-compressed water (HCW) from 140 to 240 °C for 10 or 30 min and enzymatic hydrolysis p...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-014-1199-1
更新日期:2014-11-01 00:00:00
abstract::Microalgae farming has been identified as the most eco-sustainable solution for producing biodiesel. However, the operation of full-scale plants is still limited by costs and the utilization of industrial and/or domestic wastes can significantly improve economic profits. Several waste effluents are valuable sources of...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0481-y
更新日期:2013-12-01 00:00:00
abstract::Kariba weed (Salvinia molesta) was used as biomass feedstock for ethanol production by separate hydrolysis and fermentation (SHF). Monosaccharides from Kariba weed hydrolysate were produced using thermal acid hydrolysis, sonication, and enzymatic saccharification. The optimal conditions for thermal acid hydrolysis of ...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-020-03305-x
更新日期:2020-09-01 00:00:00
abstract::The batch culture of a newly isolated strain of a green microalga, Chlorella sorokiniana, was carried out using a conical helical tubular photobioreactor. The isolate was capable of good growth at 40 degrees C under an airstream enriched with 10% CO2. The maximum photosynthetic productivity was 34.4 g of dry biomass/(...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:87:3:203
更新日期:2000-06-01 00:00:00
abstract::Chicken feathers are available in large quantities around the world causing environmental challenges. The feathers are composed of keratin that is a recalcitrant protein and is hard to degrade. In this work, chicken feathers were aerobically pretreated for 2-8 days at total solid concentrations of 5, 10, and 20 % by B...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-016-2175-8
更新日期:2016-12-01 00:00:00
abstract::Reactive oxygen species (ROS) in plants, arising from various environmental stresses, impair the thiol-contained proteins that are susceptible to irregular oxidative formation of disulfide bonds, which might be alleviated by a relatively specific modifier called protein disulfide isomerase (PDI). From our previous dat...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-015-1585-3
更新日期:2015-05-01 00:00:00
abstract::Environmental conditions affect the production of extracellular polysaccharide by Azotobacter chroococcum ATCC 4412. Production of exocellular polymer from a variety of carbon sources depended on the air flow rate. A high sucrose concentration in medium (8%) markedly favored expopolysaccharide production, which reache...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/BF02922031
更新日期:1991-09-01 00:00:00
abstract::Ovarian malignancy is diagnosed in nearly a fourth of a million women internationally every year. Methylation of RASSF1A tumor suppressor gene prompts its inactivation in diseases. In this study, the RASSF1A promoter methylation was detected by methylated-specific PCR and investigated serum RASSF1A protein level throu...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-017-2648-4
更新日期:2018-05-01 00:00:00
abstract::Graphene-containing 13-93 bioactive glass and poly(ε-caprolactone)-based bilayer, electrically conductive scaffolds were prepared for osteochondral tissue repair. Biological response of osteoblastic MC3T3-E1 and chondrogenic ATDC5 cells to the composite scaffolds was assessed under mono-culture and co-culture conditio...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-018-2758-7
更新日期:2018-12-01 00:00:00
abstract::We screened about a hundred microorganisms (including unidentified yeasts, fungi, and bacteria) for their ability to produce xylanolytic enzymes. About 40 of them were hemicellulolytic; among these, we selected Penicillium canescens 10-10c for detailed study because of its ability to produce an interesting enzymatic c...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/BF02787840
更新日期:1997-07-01 00:00:00
abstract::Chemical modification was evaluated to stabilize pig kidney D-amino acid oxidase (pkDAAO), which is required for analytical determination of D-amino acids. Optimization of modification conditions was performed to obtain high recovery yield and stability, and chemical modification at 30 degrees C for 12 h with a highly...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1385/abab:112:3:123
更新日期:2004-03-01 00:00:00
abstract::The gene encoding a thermostable β-D-xylosidase (GbtXyl43B) from Geobacillus thermoleovorans IT-08 was cloned in pET30a and expressed in Escherichia coli; additionally, characterization and kinetic analysis of GbtXyl43B were carried out. The gene product was purified to apparent homogeneity showing M r of 72 by sodium...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0329-5
更新日期:2013-08-01 00:00:00
abstract::Ornithine carbamoyltransferase folding/unfolding is a complex and not completely understood process. Our experimental results suggest that ornithine carbamoyltransferase interacts in a completely different way with urea and guanidine hydrochloride. In fact, we noticed that, increasing concentration from 0.0 to 8.0 M o...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0580-9
更新日期:2014-01-01 00:00:00
abstract::This research describes the development of a multi-analyte lateral-flow immunoassay intended for the simultaneous detection of three anti-protozoan drugs (coccidiostats). These drugs, namely, halofuginone, toltrazuril and diclazuril, are used in the treatment of Eimeria spp. infections in cattle, pigs, chickens and tu...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-015-1582-6
更新日期:2015-05-01 00:00:00
abstract::Recently, poly(3-hydroxybutyrate) (PHB) has been found in a few thermophilic strains where several advantages can be gained from running fermentation at high temperatures. Caldimonas manganoxidans, a thermophilic gram-negative bacterium, was investigated for the feasibility as a PHB-producing strain. It is suggested t...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-016-2138-0
更新日期:2016-11-01 00:00:00
abstract::The effect of biosurfactant rhamnolipid (RL) on hydrolysis and acidification of waste activated sludge (WAS) was investigated. The results indicated that RL could greatly reduce the surface tension of sludge, resulting in stimulating the hydrolysis rate of WAS and enhancing the production of short-chain fatty acids (S...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0439-0
更新日期:2013-11-01 00:00:00
abstract::Bacillus amyloliquefaciens K103 isolated from a lemon sample was used as a biocontrol agent to suppress Rhizoctonia solani Kühn and other fungal plant pathogens. Two antifungal compounds were purified from the culture broth using acid precipitation, gel permeation chromatography, and reversed-phase high-performance li...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-013-0424-7
更新日期:2013-12-01 00:00:00
abstract::The effects of amino acid composition and peptide molecular mass on ACE-inhibitory and antioxidant activities of protein fragments obtained from tomato waste fermented using Bacillus subtilis were evaluated. The addition of B. subtilis increased the relative amounts of aromatic and positively-charged amino acids which...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-016-2198-1
更新日期:2017-01-01 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
abstract::Biotechnology is consistently seeking improved enzyme stability. Enzymes have great properties, although their marginal stability limits their applications. Among the strategies for improving stability of the enzymes, chemical modification is a simple and effective technique. In the present study, chemical modificatio...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-014-0756-y
更新日期:2014-04-01 00:00:00
abstract::In biotechnological processes, a great number of factors can influence the income productivity and conversion. Normally, it is not evident which of these factors are the most important and how they interact. In this work, multivariate analysis techniques are used as experimental design coupled to a detailed determinis...
journal_title:Applied biochemistry and biotechnology
pub_type: 杂志文章
doi:10.1007/s12010-007-8060-8
更新日期:2008-03-01 00:00:00