Correlative measurement of four biological contaminants on cotton lint, and their implications for occupational health

Lane, S. R. and Sewell, Robert David Edmund 2006. Correlative measurement of four biological contaminants on cotton lint, and their implications for occupational health. International Journal of Occupational and Environmental Health 12 (2) , pp. 120-125. 10.1179/oeh.2006.12.2.120

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Abstract

Four biological contaminants of cotton fibers (gramnegative bacterial cells, endotoxin, fungal cells, and (1-3)-(3-D-glucan)were measured in 13 cotton lint samples from international origins, using traditional microbio-logical spread plating and adaptation of the Limulus amoebocyte lysate (LAL) assay. Correlations were evaluated using Spearman's rank correlation analyses. Contamination levels ranged from 713 ± 212 to 216,830 ± 30,413 CFU/g gram-negative bacteria; 281 ± 29 to 9,250 ± 820 CFU/g fungal cells; 8.30 ± 0.89 to 137.89 ± 21.55 ng/g endotoxin; and 15.96 ± 5.18 to 2,964.42 ± 313.90 LAL-reactive units/g glucan. Positive correlations existed between all contaminants; however, they were significant only between fungal cells and glucan (P < 0.05) and between endotoxin and glucan (P < 0.01). The highly significant positive correlation between endotoxin and glucan has implications for the health risk posed by the cotton-production environment, as simultaneous inhalation of these agents may cause or exacerbate lung inflammation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Pharmacy
Subjects:	R Medicine > RS Pharmacy and materia medica
Publisher:	Maney Publishing
ISSN:	1077-3525
Last Modified:	04 Jun 2017 07:57
URI:	https://orca.cardiff.ac.uk/id/eprint/70500

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