Abstract:

Radish (cv. Mantanghong) sprouts were adopted as the experimental material and sprayed with sucrose at
different concentrations. The variations of physiological indexes (anthocyanin, chlorophyll, carotenoid, total phenolic,
total glucosinolate, phenylalanine ammonia-lyase activity and peroxidase activity) of 3-, 5- and 7-day-old sprouts were
investigated. Results showed that the contents of anthocyanin, chlorophyll, carotenoid, total phenolic and total glucosinolate
were significantly (P < 0.05) increased by 0.4 and 0.6 g/100 mL sucrose treatment for 3-, 5- and 7-day-old sprouts, but not
influenced (P > 0.05) by 0.2 g/100 mL sucrose. There was no difference between 0.4 and 0.6 g/100 mL sucrose treatment.
Therefore, the nutritional value of radish sprouts could be increased by spraying 0.4 g/100 mL sucrose.

Key words: radish, sprouts, sucrose, quality, metabolic enzyme