Abstract:
:The microporous polyethylene hollow-fiber membrane has a unique microfibrile structure throughout its depth and has been found to possess the functions of filtration and adsorption of endotoxin in water. The membrane has a maximum pore diameter of approximately 0.04 micron, a diameter which is within the range of microfiltration. Approximately 10 and 20% of the endotoxin in tap water and subterranean water, respectively, was smaller than 0.025 micron. Endotoxin in these water sources was efficiently removed by the microporous polyethylene hollow-fiber membrane. Escherichia coli O113 culture broth contained 26.4% of endotoxin smaller than 0.025 micron which was also removed. Endotoxin was leaked into the filtrate only when endotoxin samples were successively passed through the membrane. These results indicate that endotoxin smaller than the pore size of the membrane was adsorbed and then leaked into the filtrate because of a reduction in binding sites. Dissociation of 3H-labeled endotoxin from the membrane was performed, resulting in the removal of endotoxin associated with the membrane by alcoholic alkali at 78% efficiency.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Sawada Y,Fujii R,Igami I,Kawai A,Kamiki T,Niwa Mdoi
10.1128/AEM.51.4.813-820.1986subject
Has Abstractpub_date
1986-04-01 00:00:00pages
813-20issue
4eissn
0099-2240issn
1098-5336journal_volume
51pub_type
杂志文章abstract::An acclimated shake flask CO(2) evolution test was used to study the biodegradability of 14 commercial phthalate esters that are commonly used as plasticizers. Both CO(2) evolution (ultimate biodegradation) and loss of parent phthalate esters (primary biodegradation) were measured. With only a few exceptions, primary ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.47.4.601-606.1984
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2015-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:1979-02-01 00:00:00
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pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.59.8.2750-2752.1993
更新日期:1993-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:2003-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.58.6.1945-1951.1992
更新日期:1992-06-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2016-09-30 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2003-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.53.4.627-632.1987
更新日期:1987-04-01 00:00:00
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journal_title:Applied and environmental microbiology
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更新日期:1996-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2013-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2004-04-01 00:00:00
abstract::The introduction of "solids" (i.e., complementary foods) to the milk-only diet in early infancy affects the development of the gut microbiota. The aim of this study was to determine whether a "baby-led" approach to complementary feeding that encourages the early introduction of an adult-type diet results in alteration...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章,随机对照试验
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更新日期:2018-08-31 00:00:00