Endotoxin reduction in dust from heated cotton fibers

Cotton was heated in a gas-fired pilot plant dryer at temperatures previously shown to reduce endotoxin levels in fiber. Heating at 255°C for 20 seconds reduced the endotoxin content of dust collected from the fibers by 90% as measured by the Limulus amebocyte lysate assay. However, heat detoxificat...

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Bibliographic Details
Published in:Textile research journal 1995-09, Vol.65 (9), p.501-504
Main Authors: Rousselle, M.A. (USDA, ARS, Southern Regional Research Center, New Orleans, LA.), Chun, D.T.W
Format: Article
Language:English
Subjects:
ALGODON
CALENTAMIENTO
CALIDAD
CHAUFFAGE
CHEMICOPHYSICAL PROPERTIES
COTON
COTTON
DESINTOXICACION
DETOXIFICATION
DUST
ENDOTOXINAS
ENDOTOXINE
ENDOTOXINS
FIBER QUALITY
FIBRAS VEGETALES
FIBRE VEGETALE
HEATING
PHYSICAL PROPERTIES
PLANT FIBRES
POLVO (CONTAMINANTES)
POUSSIERE
PROPIEDADES FISICO-QUIMICAS
PROPRIETE PHYSICOCHIMIQUE
QUALITE
QUALITY
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Summary:Cotton was heated in a gas-fired pilot plant dryer at temperatures previously shown to reduce endotoxin levels in fiber. Heating at 255°C for 20 seconds reduced the endotoxin content of dust collected from the fibers by 90% as measured by the Limulus amebocyte lysate assay. However, heat detoxification at 255°C had a detrimental effect on fiber physical properties as evaluated by high volume instrument testing, with a 24% reduction in fiber strength, a 6% reduction in length, and a 7% reduction in uniformity index. Dust release from cotton heated at 255°C was three times that from unheated cotton.
ISSN:0040-5175
1746-7748
DOI:10.1177/004051759506500902