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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
9
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pubmed:dateCreated |
2009-4-28
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pubmed:abstractText |
Airborne fungi, termed fungal bioaerosols, have received attention due to the association with public health problems and the effects on living organisms in nature. There are growing concerns that fungal bioaerosols are relevant to the occurrence of allergies, opportunistic diseases in hospitals, and outbreaks of plant diseases. The search for ways of preventing and curing the harmful effects of fungal bioaerosols has created a high demand for the study and development of an efficient method of controlling bioaerosols. However, almost all modern microbiological studies and theories have focused on microorganisms in liquid and solid phases. We investigated the thermal heating effects on fungal bioaerosols in a continuous-flow environment. Although the thermal heating process has long been a traditional method of controlling microorganisms, the effect of a continuous high-temperature, short-time (HTST) process on airborne microorganisms has not been quantitatively investigated in terms of various aerosol properties. Our experimental results show that the geometric mean diameter of the tested fungal bioaerosols decreased when they were exposed to increases in the surrounding temperature. The HTST process produced a significant decline in the (1-->3)-beta-d-glucan concentration of fungal bioaerosols. More than 99% of the Aspergillus versicolor and Cladosporium cladosporioides bioaerosols lost their culturability in about 0.2 s when the surrounding temperature exceeded 350 degrees C and 400 degrees C, respectively. The instantaneous exposure to high temperature significantly changed the surface morphology of the fungal bioaerosols.
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-10074541,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-10405391,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-10446484,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-11577993,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-12505457,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-13125342,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-16559842,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-18472852,
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http://linkedlifedata.com/resource/pubmed/commentcorrection/19201954-9861178
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1098-5336
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
75
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2742-9
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pubmed:dateRevised |
2010-9-23
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pubmed:meshHeading |
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pubmed:year |
2009
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pubmed:articleTitle |
Treatment of fungal bioaerosols by a high-temperature, short-time process in a continuous-flow system.
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pubmed:affiliation |
Center for Environmental Technology Research, Korea Institute of Science and Technology, Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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