Environmental Microbiology Articles
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Serial dilution: the impact on waste generation
One of the unsolved environmental problems of the microbiology labs is the huge amount of Petri plates waste generation every day. Serial Dilution requires using an important number of Petri dishes, but is it possible to do otherwise if one wants to guarantee no cross-contamination while working in a modern lab? Spiral plating, the plating method for reducing petri dish waste Spiral Plating is ...
By IUL S.A.
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Control Microbes with Monitoring of your Cleanroom
Microbial Environmental Monitoring To achieve compliance to regulatory guidance, a microbial monitoring program includes the following components: Active air (room or enclosure environment) Passive air (settle plates) Surfaces (contact plates and swabs) Personnel (gloves and garments) Compressed gases Materials and equipment that could compromise product microbiological quality Cleaning ...
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Scientists scramble to understand the invisible creatures around us before it’s too late
Researchers are uncovering the importance of the trillion-plus kinds of microbes on the planet — even as they worry the richness could be disappearing. In southwestern Africa, a dozen scientists dig in the dirt. In a week, they’ve transected 100 miles of shifting sand dunes and flat gravel plains across the Namib Desert, one of the driest places on Earth. They’ve filled ...
By Ensia
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2016 Food Safety Microbiology Seminar and Life Sciences Vendor Showcase
Food Safety Microbiology Seminar & Life Science Vendor showcase Registration RSVP Microbe Inotech Laboratories, Inc. (MiL) presents a seminar on various topics related to microbiology typically twice a year and has been doing so for many years now. These Seminars have focused on food Safety, Plant Sciences & Agricultural Microbiology, Environmental Microbiology, Industrial Microbiology, ...
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Geotech`s G100 verifies CO2 in NHS incubators - Case Study
About the customer Stockton Quality Control Laboratory, University Hospital of North Tees, England The lab provides microbiological, chemical, environmental and medical gas testing services Challenges the customer faced Before they had Geotech’s G100 CO2 incubator analyser, Stockton QC used a CO2 analyser with a collection of separate instruments for relative humidity and temperature. ...
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Controlling Legionella and Pseudomonas aeruginosa re-growth in therapeutic spas: implementation of physical disinfection treatments, including UV/ultrafiltration, in a respiratory hydrotherapy system
The study aimed to assess the efficacy of an integrated water safety plan (WSP) in controlling Legionella re-growth in a respiratory hydrotherapy system located in a spa centre, supplied with sulphurous water, which was initially colonized by Legionella pneumophila. Heterotrophic plate counts, Pseudomonas aeruginosa, Legionella spp. were detected in water samples taken 6-monthly from the ...
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A Cryptosporidium hominis outbreak in North-West Wales associated with low oocyst counts in treated drinking water
An outbreak in the autumn of 2005 resulted in 218 confirmed cases of Cryptosporidium hominis. The attack rate (relative risk 4.1, 95%CI 2.8–9.1) was significantly higher in the population supplied by Cwellyn Water Treatment Works (WTW). A case–control study demonstrated a statistically significant association (odds ratio 6.1, 95% CI 1.8–23.8) between drinking unboiled tap water and C. hominis ...
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The advantages and benefits of aerobic cometabolism
Aerobic metabolism yields the energy-transferring molecule TPA at a much higher rate than anaerobic metabolism. The higher energy yield produces a greater viable population. The oxygenase enzymes involved in the cometabolism of chlorinated solvents are not induced by the presence of contaminants, so a high microbial population has a proportionately high yield of oxygenase enzymes. Aerobic ...
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Emerging Models for Nitrogen Removal in Treatment Wetlands
Engineering textbooks tell a simple story about nitrification and denitrification. Classic nitrification-denitrification theory begins with the bacterial genera Nitrosomonas and Nitrobacter performing ammonia and nitrite oxidation, respectively. Then facultative or obligate anaerobic bacteria denitrify by oxidizing organic carbon with nitrate. Recent advances in environmental microbiology have ...
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Book Review: Environmental Pollution Control Microbiology
Environmental Pollution Control Microbiology, by Ross E. McKinney. Marcel Dekker, 2004. 447pp. ISBN 0-8247-5493Keywords: book ...
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IAQ investigators often overlook Bacteria as the Root Cause of Occupant Complaints
Untitled Document Many investigators have been dealing with mold issues the last few years and may have been overlooking bacteria as the underlying microbial problem. Bacteria typically outnumber fungi in the indoor air and may also account for foul odor problems. Bacterial contamination of HVAC systems has also been linked to hypersensitivity pneumonitis in building occupants. ...
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Mycotoxins: Emergent Health Issue in IAQ
Untitled Document What are mycotoxins? The name mycotoxin is derived from the Greek word 'mykes' meaning fungus and the Latin word 'toxicum' meaning poison. Mycotoxins are secondary metabolites produced by fungi (including moulds) that cause illness or death in humans or animals, typically through ingestion. Some mycotoxins are also toxic to plants or ...
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