Abstract:
:Ersho is a clear, yellow liquid that accumulates on the surface of fermenting teff-flour batter and is collected to serve as an inoculum for the next fermentation. The pH of ersho samples was about 3.5 and titratable acidity ranged between 3.1% and 5.7%. The mean aerobic mesophilic counts from four households varied between 6.9×10(6) and 1.3×10(8) c.f.u./ml and the aerobic bacterial flora consisted of Bacillus spp. Mean yeast counts ranged between 5.2×10(5) and 1.8×10(6) c.f.u./ml and comprised, in order of abundance, Candida milleri, Rhodotorula mucilaginosa, Kluyveromyces marxianus, Pichia naganishii and Debaromyces hansenii. Candida milleri was the most dominant isolate in all samples. About 90% of the teff flour samples had aerobic mesophilic counts ≥10(5) c.f.u./g and Gram-positive bacteria constituted about 71% of the total isolates. About 80% of samples had Enterobacteriaceae counts of 10(4) c.f.u./g.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Ashenafi Mdoi
10.1007/BF00357567subject
Has Abstractpub_date
1994-01-01 00:00:00pages
69-73issue
1eissn
0959-3993issn
1573-0972journal_volume
10pub_type
杂志文章abstract::In a survey of endophytic fungal biodiversity, an antimicrobial endophytic isolate zjwcf069 was obtained from twigs of Forsythia viridissima, Zhejiang Province, Southeast China. Zjwcf069 was then identified as Pezicula sp. through combination of morphological and phylogenetic analysis based on ITS-rDNA. Zjwcf069 here ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1686-0
更新日期:2014-10-01 00:00:00
abstract::Biosurfactant production through a fermentation process involving the biodegradation of soybean oil refining wastes was studied. Pseudomonas aeruginosa MR01 was able to produce extracellular biosurfactant when it was cultured in three soybean oil refinement wastes; acid oil, deodorizer distillate and soapstock, at dif...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1267-7
更新日期:2013-06-01 00:00:00
abstract::A locally isolated Acinetobacter sp. Strain AQ5NOL 1 was encapsulated in gellan gum and its ability to degrade phenol was compared with the free cells. Optimal phenol degradation was achieved at gellan gum concentration of 0.75% (w/v), bead size of 3 mm diameter (estimated surface area of 28.26 mm(2)) and bead number ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0826-z
更新日期:2012-01-01 00:00:00
abstract::Biofilm formation can make significant effects on bacteria habits and biological functions. In this study, diketopiperazines (DKPs) produced by strain of Bacillus amyloliquefaciens Q-426 was found to inhibit biofilm formed in the gas-liquid interface. Four kinds of DKPs were extracted from B. amyloliquefaciens Q-426, ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-016-2106-4
更新日期:2016-09-01 00:00:00
abstract::A rapid, simple and sensitive method for detection of ferulic and p-coumaric acids using HPLC has been developed which can be used to determine the respective phenolic acid esterase activities of microorganisms. Prior concentration, purification or derivatization of the samples are not required. As little as 0.5 mg fe...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00360920
更新日期:1996-05-01 00:00:00
abstract::As an interspecies and interkingdom signaling molecule, indole has recently received attention for its diverse effects on the physiology of both bacteria and hosts. In this study, indole increased the tetracycline resistance of Vibrio splendidus. The minimal inhibitory concentration of tetracycline was 10 μg/mL, and t...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-020-02813-6
更新日期:2020-02-22 00:00:00
abstract::Higher Basidiomycota have been used in natural medicine throughout the world for centuries. One of such fungi is Fomitopsis betulina (formerly Piptoporus betulinus), which causes brown rot of birch wood. Annual white to brownish fruiting bodies of the species can be found on trees in the northern hemisphere but F. bet...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-017-2247-0
更新日期:2017-05-01 00:00:00
abstract::Propionate is a common metabolic intermediate occurring in environmental samples including petroleum reservoirs. Available microbial genomes were obtained from the NCBI database and analyzed in silico by hmmscan to check three metabolic pathways of propionate production in petroleum reservoir systems. The succinate pa...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-017-2350-2
更新日期:2017-09-23 00:00:00
abstract::The economics of bioflocculant production is coupled with the use of a low-cost substrate at appropriate culture conditions. The use of a waste substrate for this purpose offers an additional treatment measure to mitigate environmental pollution. We investigated the growth of Aspergillus flavus and its bioflocculant y...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-019-2696-8
更新日期:2019-07-22 00:00:00
abstract::Loop-mediated isothermal amplification (LAMP) assay is a powerful and innovative gene amplification technique that specifically amplifies the target gene under isothermal conditions with a high degree of sensitivity, rapidity and specificity. The major advantage of the LAMP assay is monitoring of amplified products wi...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-010-0592-3
更新日期:2011-06-01 00:00:00
abstract::The aim of this study was to evaluate whether immobilizing a probiotic strain Lactobacillus reuteri DPC16 in chitosan-coated alginate microcapsules affected their inhibitory performance against food-borne pathogens. The probiotic strain was encapsulated in sub-100 μm alginate microspheres which were further coated wit...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1046-x
更新日期:2012-06-01 00:00:00
abstract::Identification of Clostridium botulinum is usually based on toxin detection of broth culture by mouse bioassay and requires 7 to 10 days to complete. Here, we describe an alternative in vitro procedure for direct identification of C. botulinum (types A and B) colonies which can be completed in 48 h. The method is base...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00357557
更新日期:1994-01-01 00:00:00
abstract::In this study, fennel oil was isolated by hydrodistillation, and the chemical composition was determined by gas chromatography/mass spectral analysis. The antimicrobial activity of fennel oil against Staphylococcus aureus was evaluated by broth microdilution. A haemolysis assay, tumour necrosis factor (TNF) release as...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0939-4
更新日期:2012-04-01 00:00:00
abstract::Municipal wastewater treatment plants (WWTPs) may serve as a reservoir for potentially pathogenic and antibiotic resistant bacteria. The discharge of improperly treated wastewater effluent may lead to the spread of these bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) which is responsible for ca...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-019-2715-9
更新日期:2019-08-28 00:00:00
abstract::Anabaena doliolum grown under molybdenum deficiency produced less biomass (on a dry wt basis) and the cells had lower protein content but higher carbohydrate content than Mo-grown material. Molybdenum deficiency led to a slight decrease in chlorophyll a, a 1.5-fold increase in carotenoids and a 1.4-fold increase in to...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00386284
更新日期:1993-09-01 00:00:00
abstract::Cadmium ions in wastewater can be removed by biosorption on to Acinetobacter calca var. antratus, isolated from a wastewater sample from a copper refinery. There are two equillibrium states: the first, which is reached quickly, is probably direct adsorption, and the second may be due to the release of ion adsorption m...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00368363
更新日期:1991-09-01 00:00:00
abstract::The aims of this work were to identify in vivo manifestations of antioxidant activity of Lactobacillus strains isolated from healthy human biotopes and to show the possibility of protective action of the selected strain on the model of oxidative stress induced by paraquat in the model of early Parkinson's disease (PD)...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-020-02879-2
更新日期:2020-07-06 00:00:00
abstract::Silver nanoparticles (SNPs) are extensively used in many industrial and medical applications; however, the impact of their release in the environment is still considered an understudied field. In the present work, SNPs present in aqueous lab waste water (average size of 30 nm) were used to determine their impact on mi...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1597-0
更新日期:2014-06-01 00:00:00
abstract::One strain of algicidal bacterium, named as S088, was isolated from the intestine of healthy sea cucumbers (Stichopus horrens) in the South China Sea. Based on the analysis of its biochemical characteristics and 16S rDNA gene sequence, S088 was identified as Bowmanella denitrificans. Importantly, the algicidal activit...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1478-y
更新日期:2014-02-01 00:00:00
abstract::Of three molecular forms of polygalacturonases synthesized by Aspergillus alliaceus on glucose media, two were exopolygalacturonases (exoPG1 and exoPG2) and one was an endopolygalacturonase (endoPG). Low-methoxylated beet pectin was the preferred substrate for the endoPG and exoPG2 whereas pectic acid was the optimal ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00367111
更新日期:1995-05-01 00:00:00
abstract::Biotransformations have gained extensive importance in practical use as a support for chemical synthesis or in the conversion of natural products. Biotransformations may present an enlargement, a sequential degradation or a specific modification of synthetic or natural compounds. The tools for biotransformations are p...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF02421497
更新日期:1992-12-01 00:00:00
abstract::Kaolin is an important industrial raw material and a basis of a range of different products. Microbial spoilage is a detrimental process observed especially in kaolin slurries, leading to low quality products and economic loss. Although the alteration of kaolin slurries in ceramic industry was observed, the process an...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0976-z
更新日期:2012-04-01 00:00:00
abstract::An extracellular lipase producing isolate Staphylococcus sp. MS1 was optimized for lipase production and its biocatalytic potential was assessed. Medium with tributyrin (0.25 %) and without any exogenous inorganic nitrogen source was found to be optimum for lipase production from Staphylococcus sp. MS1. The optimum pH...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1715-z
更新日期:2014-11-01 00:00:00
abstract::Common reed (Phragmites australis) and narrow-leaved cattail (Typha angustifolia L.) are two plant species used widely in artificial wetlands constructed to treat wastewater. In this study, the community structure and diversity of root-associated bacteria of common reed and narrow-leaved cattail growing in the Beijing...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1316-2
更新日期:2013-08-01 00:00:00
abstract::Aquilaria malaccensis produces agarwood in response to wounding and fungal attack. However, information is limited regarding Aquilaria's interaction with its diverse fungal community. In this study, time-related changes of three natural fungal colonizers in two wounded wild A. malaccensis were tracked, beginning a few...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1668-2
更新日期:2014-09-01 00:00:00
abstract::Cystic Fibrosis is a genetic disease and it affects the respiratory and digestive systems. Pseudomonas aeruginosa infections in Cystic Fibrosis are presented as the main cause for high mortality and morbidity rates. Pseudomonas aeruginosa populations can regulate their virulence gene expressions via the bacterial comm...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-016-2105-5
更新日期:2016-09-01 00:00:00
abstract::Rice bran was superior to other proteinaceous substrates for protease production by Rhizopus oligosporus ACM 145F in solid-state fermentation. Maximum protease yield was after 72 h. The optimal initial moisture content was 47% (a w=0.97). Dried, ground and resuspended fermented rice was the most pratical and effective...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00414872
更新日期:1994-05-01 00:00:00
abstract::Methicillin-resistant Staphylococcus aureus (MRSA) has become increasingly important because it is the most common cause of hospital-acquired infections, which have become globally epidemic. Our study specifically focused on the MRSA strain USA300, which was shown in 2014 to be responsible for the most current pandemi...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-015-1879-1
更新日期:2015-08-01 00:00:00
abstract::Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is a stemborer pest that attacks maize (Zea mays) throughout sub-Saharan Africa. Genetically modified maize has been shown to be effective against B. fusca. However, resistance of B. fusca against Bt-maize has developed and spread throughout South Africa. Previous studi...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-016-2066-8
更新日期:2016-07-01 00:00:00
abstract::Bacteria are crucial components in lake sediments and play important role in various environmental processes. Urban lakes in the densely populated cities are often small, shallow, highly artificial and hypereutrophic compared to rural and natural lakes and have been overlooked for a long time. In the present study, ba...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1126-y
更新日期:2012-11-01 00:00:00