Changes in glycoalkaloids and phenolic contents in potato tubers stored under different conditions

Tubers of potato (Solanum tuberosum L.) cultivars 'Kufri Chipsona-1, 'Kufri Bahar' and 'Kufri Jyoti' were stored for 90 days under refrigerated (2-4 degrees C and 10-12 degrees C) with isopropyl-N-(3-chlorophenyl) carbarnate (CIPC) and non-refrigerated (in heap, 19-33 degrees C) and under room temperature (26-40 degrees C) conditions. Peels and flesh were analyzed for glycoalkaloids and phenol contents. The glycoalkaloid content increased in the flesh of tubers stored at 10-12 degrees C, while in peels, increase occurred at 2-4 degrees C and in heap storage. In room temperature (26-40 degrees C) storage, no significant changes were observed in glycoalkaloid contents, but variety specific changes occurred after different durations of storage. The phenol content in both peels and flesh decreased after 90 days of storage at 2-4 degrees C, 10-12 degrees C and in heap. The changes in phenol content in tubers stored at room temperature (26-40 degrees C) did not show any consistent trend.