Jh. Churchley et al., A chemometric approach to understanding the bioelimination of anionic, water-soluble dyes by a biomass - Part 2: Acid dyes, J S DYE COL, 116(7-8), 2000, pp. 222-228
Using a newly developed, rapid and robust laboratory method for assessing t
he bioelimination of water-soluble colorants, the level of bioelimination o
f a series of acid dyes has been determined. A chemometric analysis has bee
n conducted to correlate bioelimination with chemical structure/functionali
ty. Bioelimination varied between 0 and 96% for the series of dyes studied,
the level being generally proportional to the size/charge ratio of the dye
. It has been shown that the bioelimination of acid dyes can be enhanced by
the use of long, flat, hydrophobic structures bearing a number of naphthal
ene units or alkyl groupings together with the minimum number of sulphonate
and sulphonamide groups.