TY - JOUR
T1 - Novel exploration of endophytic diaporthe sp. for the biosorption and biodegradation of triphenylmethane dyes
AU - Ting, Adeline Su Yien
AU - Lee, Melvin Vun Jye
AU - Chow, Yiing Yng
AU - Cheong, Siew Loon
PY - 2016/4
Y1 - 2016/4
N2 - An endophytic isolate identified as Diaporthe sp. was explored for its biosorption and biodegradation potential on triphenylmethane (TPM) dyes. Treatment with live cells demonstrated strong decolorization activities towards methyl violet (MV, 100 mg L-1), crystal violet (CV, 100 mg L-1), and malachite green (MG, 50 mg L-1), with 84.87, 78.81, and 87.80 %, respectively. These values are far greater than decolorization by dead cells via biosorption (DE% of 18.82-48.32 %). The absence of peaks in the UV-vis spectra after 14 days further suggested degradation of dye chromophores. Results revealed that Diaporthe sp. removed TPM dyes through biodegradation and biosorption, with the former as a more desirable mechanism due to its ability to degrade most dye chromophore and enhance decolorization efficiency, and as a mechanism to tolerate toxic MG. As such, application of live cells of Diaporthe sp. is advantageous as it allows biodegradation to occur.
AB - An endophytic isolate identified as Diaporthe sp. was explored for its biosorption and biodegradation potential on triphenylmethane (TPM) dyes. Treatment with live cells demonstrated strong decolorization activities towards methyl violet (MV, 100 mg L-1), crystal violet (CV, 100 mg L-1), and malachite green (MG, 50 mg L-1), with 84.87, 78.81, and 87.80 %, respectively. These values are far greater than decolorization by dead cells via biosorption (DE% of 18.82-48.32 %). The absence of peaks in the UV-vis spectra after 14 days further suggested degradation of dye chromophores. Results revealed that Diaporthe sp. removed TPM dyes through biodegradation and biosorption, with the former as a more desirable mechanism due to its ability to degrade most dye chromophore and enhance decolorization efficiency, and as a mechanism to tolerate toxic MG. As such, application of live cells of Diaporthe sp. is advantageous as it allows biodegradation to occur.
KW - Biodegradation
KW - Biosorption
KW - Decolorization
KW - Diaporthe sp.
KW - Triphenylmethane dyes
UR - http://www.scopus.com/inward/record.url?scp=84962312905&partnerID=8YFLogxK
U2 - 10.1007/s11270-016-2810-6
DO - 10.1007/s11270-016-2810-6
M3 - Article
AN - SCOPUS:84962312905
SN - 0049-6979
VL - 227
JO - Water, Air, & Soil Pollution
JF - Water, Air, & Soil Pollution
IS - 4
M1 - 109
ER -