Effect of post-harvest storage on metabolism of phenol compounds in carrot root slices
Maria Leja, Barbara Stodolak, Anna Mareczek, Stanisław Rożek, Renata Wojciechowska
Department of Plant Physiology
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland
In 1 mm thick carrot root slices, stored for 3 days at 20°C a
considerable accumulation of total phenols, chlorogenic acid and
isocoumarin was observed, accompanied by increased activity of peroxidase
and phenylalanine-ammonia lyase, as well as wound-ethylene evolution.
The plant tissue response to wound stress, followed by short-term ageing, depended on the previous
post-harvest storage period of the roots. The highest metabolic activity
of carrot root slices was observed when they were prepared from freshly
harvested roots (November) and the lowest one in the case of three months
storage of the roots (February). The sensitivity of carrot roots to stress
from mechanical damage again rose in March but was less intensive than in autumn.
Leja M., Stodolak B., Mareczek A., Rożek S., Wojciechowska R., 1997. Effect of
post-harvest storage on metabolism of phenol compounds in carrot root
slices. Folia Horticulturae 9/2: 59-69.