Toxic effect of diesel and kerosene on growth and biochemical composition of spirulina platensis.

Author(s): Rajni Karoriya

Abstract

Spirulina platensis is a photosynthetic, filamentous, spiral shaped, multicellular and blue-green microalga. Diesel and kerosene are used in great amount for different purposes causing environmental pollution. In the present study, the effect of diesel and kerosene were tested on Spirulina platensis at the concentrations of 0.5,1,2,5 and 10%. Growth rate were observed for both diesel and kerosene and compared with control samples. Protein content, carbohydrate content and chlorophyll-a content were also determined. There was dramatic change in the growth and population increment. The day wise study was carried out and it was found that with increase in time span the growth decreases and concentration of diesel and kerosene also affected its growth. It was concluded that diesel is more toxic than kerosene.

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