Influence of Provenance and Harvest Date on Some Quality Properties of Horse Radish (Armoracia Rusticana Ph. Gaertn. B. Mey. Et Scherb.) for Preservation Purposes

Changes in thiocyanate content in some radish Raphanus sativus L. cultivars during hypocotyl-root growth

“…The gradual increase in glucosinolate derivatives of hypocotyl-roots and their constant content after reaching the maximum amount could be explained as a natural physiological activity of assimilate accumulation by a plant during its preparation for a period of rest, the more so, that these compounds as glucosides are undoubtedly some of the many storage materials of radish. A constant rise in allyl isothiocyanate was also noted in horseradish roots during their growth and at the delay of harvest (Fritz et al 1987). …”

“…Sudden changes in the contents of glucosinolate derivatives could be attributed to various chemical transformations affecting the quality composition of these compounds. They are mixtures of numerous components of very unstable nature due to their autolysis or hydrolysis (Trzebny 1962, Sang et al 1984, Fritz et al 1987). According to Chong and Bible (1974), and Olsen and Sorensen (1981) the biggest amount of glucosinolates was present in seeds.…”