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[en] The activities of PPO in pear juice were measured when it received different dosage of 60Co γ-rays irradiation, different pH, and the combination of radiation and pH condition. The results showed that, radiation treatment and decreasing the pH value can inhibit the PPO's activity. Combination treatment of 3 kGy γ-irradiation and pH 3.1 can lower the activity of PPO about 92%. (authors)
Journal
Acta Agriculturae Nucleatae Sinica; ISSN 1000-8551; 
; v. 20(4); p. 326, 331-332
; v. 20(4); p. 326, 331-332