Influence of post-harvest storage temperature and gamma irradiation on potato carotenoids |
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Authors: | M. T. Janave P. Thomas |
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Affiliation: | (1) Biochemistry & Food Technology Division, Bhabha Atomic Research Centre, Trombay, 400 085 Bombay, India |
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Abstract: | Summary A comparative study of nine Indian potato varieties showed a good correlation between their total carotenoid content and the tuber flesh colour. Regardless of varietal differences, carotenoid level showed an increase during storage at ambient temperature (25–30°C) and to a lesser extent at 2–4°C and 15°C. Tubers exposed to an irradiation dose of 10 krad for sprout inhibition showed decreased levels of carotenoids during storage, particularly at 15°C where 50% loss was observed after 6 months of storage. Irradiated tubers stored for seven months at 15°C, on reconditioning at 34–35°C for 6 to 12 days showed a 2- to 6-fold increase in their carotenoid content. |
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Keywords: | Solanum tuberosum sprout inhibition varieties |
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