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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(8): 3346-3355
DOI: https://doi.org/10.20546/ijcmas.2018.708.358


Evaluation of Toxicity of a Textile Dye (Optilan Red) towards a Green Microalga Chlorella vulgaris
Samchetshabam Gita1, S.P. Shukla1*, Chandra Prakash2, Neelam Saharan1 and Geetanjali Deshmukhe3
1Aquatic Environment and Health Management Division
2Aquaculture Division
3FRPHM division, ICAR-Central Institute of Fisheries Education, Mumbai, Maharashtra, India - 400061
*Corresponding author
Abstract:

In this study, the effect of textile dye (Optilan Red) toward microalgae Chlorella vulgaris was monitored for a period of 96 hours. The parameters such as specific growth rate (SGR), EC50, protein, chlorophyll, carotenoid and elemental composition of the microalgae were recorded. Results showed that SGR for C. vulgaris decreased with increase in concentration of dye and a significant decrease was noticed upto 20 ppm however, further increase in concentration showed no growth of the organism. EC50 for Optilan Red was found to be 23.16 ppm. The protein level of treated C. vulgaris showed significant reduction in all the concentrations. Further significant increase in percentage protein inhibition was noticed with increase in dye concentrations. More than 50% reduction in level of both pigments evident at 50 ppm. Maximum percentage inhibition was 66.6% and 79.4% for total chlorophyll and carotenoid, respectively (at 50 ppm). It was noticed that elemental composition of C. vulgaris was reduced significantly as compared to the control. This study emphasizes that assessment of toxicity of textile dyes towards photoautotrophic organisms including micro-algae is of prime importance to assess the impacts of dye pollution in aquatic environment.


Keywords: Optilan red, SGR, EC50, Protein, Pigment, Chlorella vulgaris
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How to cite this article:

Samchetshabam Gita, S.P. Shukla, Chandra Prakash, Neelam Saharan and Geetanjali Deshmukhe. 2018. Evaluation of Toxicity of a Textile Dye (Optilan Red) towards a Green Microalga Chlorella vulgaris.Int.J.Curr.Microbiol.App.Sci. 7(8): 3346-3355. doi: https://doi.org/10.20546/ijcmas.2018.708.358