Changes in the biochemical constituents of carrot roots due to bacterial soft rot.
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Date
2012-01
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Abstract
Carrot is a rich source of nutrients. The carrot contains carotene and lycopene, which gives
bright color to the roots. The quality of the carrots was assessed based on the carotene, lycopene and other
biochemical constituents like sugars, starch and protein. To study the effect of various isolates of the Erwinia
carotovora var. carotovora on the above biochemical constituents, the pathogens were inoculated and the
contents were analyzed separately at 1, 2, 3, 4, 5 days after inoculation. The contents of β-carotene increased
significantly due to all the three isolates of the pathogen and the Coimbatore isolate recorded highest of
36.03 per cent. A same trend was also observed in the lycopene content with 93.55 per cent increase over
control. The contents of total and reducing sugars were found to significantly increase due to inoculation
with the pathogen. The starch content showed a decreasing trend in all the isolates tested. The maximum
reduction of 62.98 per cent was observed in the roots inoculated with Coimbatore isolate.
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Keywords
Post harvest, Carrot, Soft rot, Erwinia, Biochemical, Diseases
Citation
Parthiban V K, Prakasam V, Prabakar K. Changes in the biochemical constituents of carrot roots due to bacterial soft rot. International Journal of Applied Biology and Pharmaceutical Technology. 2012 Jan-Mar; 3(1): 231-238.