Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1997-3-25
pubmed:abstractText
Polyoxyethylene (20) sorbitan mono-fatty acid esters strongly enhanced the inactivation of lipopolysaccharide (LPS) by steam-heat treatment at 121 degrees C, as assayed by using the Limulus amebocyte lysate (LAL) and the pyrogen test. In an aqueous solution containing 0.1% surfactant, the decrease of LPS (1 microgram/ml) from E. coli 055:B5 at 121 degrees C followed first-order kinetics. Based on the LAL assay, 0.1% surfactant was essential to achieve 3-log cycle reduction of LPS with concomitant loss of pyrogenicity by steam-heat treatment for 20 min at 121 degrees C. Steam-heat treatment for 20 min at 121 degrees C in the absence of surfactant was insufficient to achieve depyrogenation. Polyoxyethylene (9) lauryl ether and decaglycerin mono-laurate similarly enhanced depyrogenation by steam-heat treatment. The effects of all the surfactants were concentration-dependent for all of the six kinds of LPS examined.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1079-7440
pubmed:author
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
360-5
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Enhancing effect of non-ionic surfactant on the inactivation of lipopolysaccharide by steam-heat treatment I.
pubmed:affiliation
Pharmaceutical Research Center, Shiseido Company, Yokohama, Japan.
pubmed:publicationType
Journal Article