Photo-induced changes in the total chlorogenic acid content of potato (Solanum tuberosum) tubers
1995
Griffiths, D.W. | Bain, H. | Dale, M.F.B.
The exposure of potato tubers to light resulted in a significant cultivar-dependent increase in chlorogenic acid content. The magnitude of the observed increase resulting from 48 h light exposure was significantly correlated with the initial chlorogenic acid content of the tubers and also with the previously reported photo-induced increases in total glycoalkaloids. Time-course studies indicated that the greatest rate of increase occurred between 8 and 16 h continual exposure. Prolonged storage under light revealed that chlorogenic acid values in some cultivars reached a maximum value after 48 h, whilst in others these continued to increase almost linearly until the end of the experiment 5 days later.
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