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KMID : 0545119920020030215
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Journal of Microbiology and Biotechnology
1992 Volume.2 No. 3 p.215 ~ p.219
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Decolorization of Azo Dyes by Aspergillus sojae B-10
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RYU BEUNG-HO
WEON YONG-DON
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Abstract
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Biodegradation of azo dyes such as Amaranth, Sudan III and Congo-Red by Aspergillus sojae B-10 was demonstrated using Aspergillus sojae B-10. Aspergillus sojae B-10 showed the greatest decolorization ability when it was cultivated in a nitrogen-limited medium containing, azo dyes(10㎎/ℓ), 2.0% glucose, 0.06% sodium nitrate, 0.1% KH_2PO_4, 0.5% MgSO_4·7H_2O at pH 5.0 and 37℃ for 5 days. Under optimal conditions, Amaranth started being decolorized within 24 hr and was almost complete after decolorization of 4 days incubation. Sudan III was completely decolorized after a cultivation of 5 days. However, Congo-Red was not completely decolorized until 5 days of cultivation.
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KEYWORD
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