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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References
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Janave, M.T., Thomas, P. Influence of post-harvest storage temperature and gamma irradiation on potato carotenoids. Potato Res 22, 365–369 (1979). https://doi.org/10.1007/BF02356230
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DOI: https://doi.org/10.1007/BF02356230