Otherwise, the amino acid and total soluble protein contents were higher in pulp in all treatments. The antioxidant activity in the whole fruit was less than the peel and pulp while the highest antioxidant activity was in the peel. The DPPH radical scavenging activity of eggplant extracts varies according to the plant part. Moreover, tannin contents increased at a dose of 50Gy to (5.853, 7.94 and 7.79mg/g DW) for pulp, peel and whole fruits respectively the highest contents were detected in peels followed by the whole fruits and the pulps. A dose level at 50Gy increased flavonoid contents (0.835, 4.301 and 3.166mg/g DW) for pulp, peel and whole fruits, respectively. Also, 50Gy increased total phenolic contents (2.140, 4.039 and 2.965mg/g DW) for pulp, peel and whole fruits, respectively. All growth parameters studied showed an increase when using a dose of 50Gy gamma rays. A FIELD experiment was performed to study the effect of gamma irradiation (0.0, 50 and 100Gy) on growth parameters and bioactive compounds of different parts of eggplant.
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