Abstract:
AIMS:To determine the effect of solar radiation on Cryptosporidium parvum in tap and environmental waters. METHODS AND RESULTS:Outdoor tank experiments and a cell culture infectivity assay were used to measure solar inactivation of C. parvum oocysts in different waters. Experiments conducted on days with different levels of solar insolation identified rapid inactivation of oocysts in tap water (up to 90% inactivation within the first hour). Increased dissolved organic carbon content in environmental waters decreased solar inactivation. The role of solar ultraviolet (UV) in inactivation was confirmed by long-pass filter experiments, where UV-B was identified as the most germicidal wavelength. Reductions in oocyst infectivity following solar radiation were not related to a loss of excystation capacity. CONCLUSIONS:Solar UV can rapidly inactivate C. parvum in environmental waters. SIGNIFICANCE AND IMPACT OF THE STUDY:This is the first study to assess natural sunlight inactivation of C. parvum oocysts in surface waters and drinking water using an infectivity measure and determines the wavelengths of light responsible for the inactivation. The findings presented here provide valuable information for determining the relative risks associated with Cryptosporidium oocysts in aquatic environments and identify solar radiation as a critical process affecting the oocyst survival in the environment.
journal_name
J Appl Microbioljournal_title
Journal of applied microbiologyauthors
King BJ,Hoefel D,Daminato DP,Fanok S,Monis PTdoi
10.1111/j.1365-2672.2007.03658.xsubject
Has Abstractpub_date
2008-05-01 00:00:00pages
1311-23issue
5eissn
1364-5072issn
1365-2672pii
JAM3658journal_volume
104pub_type
杂志文章abstract:AIMS:The objective of this study was the fundamental investigation of the antimicrobial efficiency of various hop extracts against selected foodborne pathogens in vitro, as well as their activity against Listeria monocytogenes in a model meat marinade and on marinated pork tenderloins. METHODS AND RESULTS:In a first s...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12717
更新日期:2015-03-01 00:00:00
abstract:AIMS:Three broadly used typing methods were employed in order to assess and compare the identification and classification of environmental Pseudomonas strains. The reproducibility, typeability and discriminatory power of the methods were also compared to evaluate their application. Finally, the potential impact on publ...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2005.02691.x
更新日期:2005-01-01 00:00:00
abstract:AIMS:We investigated and compared the efficacy of a new apparatus for detaching micro-organisms from meat samples. METHODS AND RESULTS:The efficacy of Spindle and stomacher in detaching micro-organisms from meat samples was evaluated. Also, evaluation of appropriateness of suspensions generated by both methods for car...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.13075
更新日期:2016-04-01 00:00:00
abstract:AIMS:Considering the significant rise in the probiotic market in Columbia, and given the lack of reports concerning the microbial population and strain performance in products from different producers, this study aims at determining the number of viable starter bacteria and probiotics in bio-yoghurts available at the C...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2007.03294.x
更新日期:2007-09-01 00:00:00
abstract:AIMS:To improve lincomycin A production and decrease the content of byproduct lincomycin B in an industrial lincomycin-producing strain. METHODS AND RESULTS:The in silico analysis indicated that LmbW could be involved in propylproline biosynthesis of lincomyin A. In this study, we constructed an lmbW deletion mutant a...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12919
更新日期:2015-10-01 00:00:00
abstract:AIMS:Glycyrrhiza glabra is a high-value medicinal plant thriving in biodiversity rich Kashmir Himalaya. The present study was designed to explore the fungal endophytes from G. glabra as a source of bioactive molecules. METHODS AND RESULTS:The extracts prepared from the isolated endophytes were evaluated for anti-micro...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.13410
更新日期:2017-05-01 00:00:00
abstract:AIMS:To determine the effects of herbal essential oils on Trichophyton spp. growth and to evaluate the effects of Pelargonium graveolens oil and its main components citronellol and geraniol combined with ketoconazole against Trichophyton spp. METHODS AND RESULTS:Growth inhibition of six Trichophyton spp. by herbal ess...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2004.02417.x
更新日期:2004-01-01 00:00:00
abstract::Probiotics are increasingly being added to food in order to develop products with health-promoting properties. Particularly, Saccharomyces cereviceae var. boulardii yeast is recently being investigated like a starting-culture for development of functional and probiotic foods. Although the literature is abundant on the...
journal_title:Journal of applied microbiology
pub_type: 杂志文章,评审
doi:10.1111/jam.14037
更新日期:2018-10-01 00:00:00
abstract:AIMS:To investigate the effect of media composition and agroindustrial residues on bovicin HC5 production by Streptococcus bovis HC5. METHODS AND RESULTS:Batch cultures of S. bovis HC5 were grown in basal medium containing different carbon and nitrogen sources. The activity of cell-free and cell-associated bovicin HC5...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2009.04212.x
更新日期:2009-07-01 00:00:00
abstract:AIMS:The metabolism of phenanthrene and anthracene by a moderate thermophilic Nocardia otitidiscaviarum strain TSH1 was examined. METHODS AND RESULTS:When strain TSH1 was grown in the presence of anthracene, four metabolites were identified as 1,2-dihydroxy-1,2-dihydroanthracene, 3-(2-carboxyvinyl)naphthalene-2-carbox...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2008.03753.x
更新日期:2008-08-01 00:00:00
abstract:AIMS:To determine whether strains of Geobacillus stearothermophilus isolated from a milk powder manufacturing plant were different in their ability to form biofilms and produce spores. In addition, this study evaluated whether there were other physiological characteristics that could differentiate these strains. METHO...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12366
更新日期:2014-02-01 00:00:00
abstract::A bacterium (strain TJ330) capable of using carbon disulphide (CS2) as its sole energy source in an acidic environment was isolated from a peat biofilter used in experiments to remove CS2 and hydrogen sulphide (H2S) from air. Its physiology and taxonomy are described here. The strain oxidized CS2, H2S and elemental su...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.2000.01150.x
更新日期:2000-10-01 00:00:00
abstract:AIMS:To evaluate the field inactivation of Bacillus anthracis Sterne spores with methyl bromide (MB) using commercial fumigation techniques. METHODS AND RESULTS:Eighty-seven wood and 87 glass coupons each containing ca. 1 × 10(6) B. anthracis Sterne spores, were placed in 22 locations inside a 1444 m(3) conference bui...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12974
更新日期:2016-01-01 00:00:00
abstract:AIMS:Isomalto-oligosaccharides (IMO) with α(1 --> 6) and α(1 --> 4) glucosidic linkages are produced by enzymatic conversion of starch. IMO are only partially digestible but data on their influence on intestinal microbiota are limited. It was the aim of this study to investigate the effect of IMO diet on intestinal mic...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2011.04984.x
更新日期:2011-05-01 00:00:00
abstract:AIMS:Monitoring of microbial changes during and after application of various disinfection treatments in a model domestic water system. METHODS AND RESULTS:A pilot-scale domestic water system consisting of seven galvanized steel re-circulation loops and copper dead legs was constructed. Culture techniques, confocal las...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2004.02391.x
更新日期:2004-01-01 00:00:00
abstract:AIM:In the study, we investigated the regulatory effects of these genes (codY, comA, degU and spo0A) on the biosynthesis of three lipopeptides (bacillomycin D, fengycin and surfactin) in Bacillus amyloliquefaciens. METHODS AND RESULTS:The codY, comA, degU and spo0A genes in B. amyloliquefaciens fmbJ were knocked out. ...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.15007
更新日期:2021-01-18 00:00:00
abstract:AIM:This work was conducted to produce, purify and characterize biosurfactants from Aspergillus flavus AF612 isolated from citrus fruit. METHODS AND RESULTS:Biosurfactant named 'Uzmaq' was isolated from A. flavus AF612. The chemical characterization of the biosurfactant was conducted. Biosurfactant Uzmaq produced by A...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12929
更新日期:2015-10-01 00:00:00
abstract:AIMS:To estimate the efficacy of specific egg yolk immunoglobulin (IgY) for the treatment of lipopolysaccharide (LPS)-induced endotoxemia using a mouse model. METHODS AND RESULTS:Specific IgY was obtained from the yolk of hens immunized with formaldehyde-killed Escherichia coli O111 and showed a high binding activity ...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2011.05155.x
更新日期:2011-12-01 00:00:00
abstract:AIM:To detect if substances with mammalian cell toxicity are produced by Streptomyces turgidiscabies and Streptomyces scabiei isolated from potato scab lesions. METHODS AND RESULTS:In vitro cultures of phytopathogenic and nonphytopathogenic strains of S. scabiei and S. turgidiscabies, isolated from scab lesions of pot...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2007.03661.x
更新日期:2008-05-01 00:00:00
abstract:AIMS:Environmental contamination plays an important role in the transmission of infections, especially healthcare-associated infections. Disinfection transiently reduces contamination, but surfaces can rapidly become re-contaminated. Antimicrobial surfaces may partially overcome that limitation. The antimicrobial activ...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.12308
更新日期:2013-11-01 00:00:00
abstract:AIMS:Utilization of silage in livestock farming is expected to increase in developing countries in the tropical and subtropical parts of the world. The aim of this study was to investigate the influence of nitrogen fertilization on the chemical composition of herbage, ensiling process and silage quality, and to contrib...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2009.04591.x
更新日期:2010-06-01 00:00:00
abstract:AIMS:Application of molecular techniques to ecological studies has unveiled a wide diversity of micro-organisms in natural communities, previously unknown to microbial ecologists. New lineages of Archaea were retrieved from several non-extreme environments, showing that these micro-organisms are present in a large vari...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.2001.01297.x
更新日期:2001-05-01 00:00:00
abstract:AIM:To determine the sensitivity of methods for detection of injured and uninjured Escherichia coli O157:H7 (E. coli O157) in raw and pasteurized milk. METHODS AND RESULTS:Raw milk, pasteurized milk with 1.5% fat content and pasteurized milk with 3.5% fat content were spiked with E. coli O157 at low levels. The sample...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.2002.01646.x
更新日期:2002-01-01 00:00:00
abstract:AIMS:The aim of the present study was to develop a colorimetric LAMP assay for the detection of enteroviruses belonging to species A-D targeting the 5' untranslated region (5' UTR) of enteroviruses genome. METHODS AND RESULTS:The RNA was converted to cDNA by the reverse transcriptase and then amplified via LAMP by the...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.14770
更新日期:2021-01-01 00:00:00
abstract:AIMS:This study investigates changes in microbiological and physicochemical parameters during large-scale, thermophilic composting of a single batch of municipal organic waste. The inter-relationships between the microbial biomass and community structure as well as several physicochemical parameters and estimates of ma...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2006.03271.x
更新日期:2007-08-01 00:00:00
abstract:AIMS:To assess frequencies of the Aspergillus flavus atoxigenic vegetative compatibility group (VCG) YV36, to which the biocontrol agent AF36 belongs, in maize-growing regions of Mexico. METHODS AND RESULTS:Over 3500 A. flavus isolates recovered from maize agroecosystems in four states of Mexico during 2005 through 20...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.13047
更新日期:2016-04-01 00:00:00
abstract:AIMS:To investigate multiple tolerance of Saccharomyces cerevisiae obtained through a laboratory strategy of adaptive evolution in acetic acid, its relation with enzymatic ROS detoxification and bioethanol 2G production. METHODS AND RESULTS:After adaptive evolution in acetic acid, a clone (Y8A) was selected for its to...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/jam.13917
更新日期:2018-09-01 00:00:00
abstract::The effects of nisin and monolaurin, alone and in combination, were investigated on Bacillus licheniformis spores in milk at 37 degrees C. In the absence of inhibitors, germinated spores developed into growing vegetative cells and started sporulation at the end of the exponential phase. In the presence of nisin (25 IU...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.1999.00669.x
更新日期:1999-02-01 00:00:00
abstract::Due to the increasing number of nosocomial infections and multidrug-resistant bacterial strains, Staphylococcus aureus is now a major worldwide concern. Rapid detection and characterization of this bacterium has become an important issue for biomedical applications. Biosensors are increasingly appearing as low-cost, e...
journal_title:Journal of applied microbiology
pub_type: 杂志文章,评审
doi:10.1111/jam.13510
更新日期:2017-11-01 00:00:00
abstract:AIMS:To develop a suite of group-specific, rRNA-targeted oligonucleotide scissor probes for the quantitative detection of the predominant bacterial groups within the ruminal microbial community with the rRNA cleavage reaction-mediated microbial quantification method. METHODS AND RESULTS:Oligonucleotides that complemen...
journal_title:Journal of applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1365-2672.2007.03443.x
更新日期:2007-11-01 00:00:00