Comparison of endotoxin exposure assessment by bioaerosol impinger and filter-sampling methods
Article Abstract:
Bioaerosol impingers are more effective than air sampling filters in detecting endotoxins in air. The impingers can be used simultaneously to detect bacteria and their endotoxins, thus eliminating the need for additional filter sampling.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2001
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Comparison of bioaerosol sampling methods in barns housing swine
Article Abstract:
Three methods of sampling bioaerosol were compared as to assessment of total bacteria, gram-negative enteric bacteria and total fungi in barns housing swine. The all-glass impinger (AGI) and Nuclepore filtration and elution (NFE) methods were found suitable for assessing bacteria. The Andersen microbial sampler method (AMS) was best at the recovery of enteric bacteria, although it was not accurate for total bacteria. For fungi, all three methods were found reliable, however, the AGI was deemed best as it was able to measure significantly higher concentrations of airborne fungi.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1992
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Effects of a bacterial hay preservative (Pediococcus pentosaceus) on hay under experimental storage conditions
Article Abstract:
The bacterial hay preservative Pediococcus pentosaceus is ineffective in preventing an increase in pH and hay deterioration. P. pentosaceus grows abundantly when innoculated in hay containing 35% moisture but does not stop the rising pH or molding of hay. The bacterial inoculant does not grow if the hay humidity is 20%, 25%, or 30%. Hay deterioration is caused by the growth of molds and thermophilic actinomycetes. However, experimental storage conditions are different from normal storage conditions, which might alter bacterial and fungal growth.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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