摘要
0.20KGY^(60)Co—γ辐照五月鲜桃和百花桃,能有效地提高其果肉组织中 CAT 活性,对果实的成熟衰老及腐烂有良好的延缓和抑制作用,并可激活POD 和 PPO 活性。更高剂量辐照处理,果实组织受到伤害,POD 和 PPO 活性显著增强,CAT 活性显著减弱,感观品质劣变,但对 AAO 活性无显著影响。
Irradiation oF the fruit of pcach (“Wuyucxian” and “Baihuatao” varieties) with ^(60)Co-γ rays at 0.20 KGY significantly cnhanccd CAT activity in the mesocarp,thus inhib- iting and delaying the senescence and decay oF the fruit.It also helped activate peroxidasc (POD) and polyphenol oxidasc (PPO).Higher doses resulted in fruit tissue injury,increased the activity of POD and PPO and decrcased CAT activity.Deterioration in sensory quality followcd.^(60)Co irradiation,however,had no significant effect on the activity of AAO.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
1993年第2期63-67,共5页
Journal of Southwest University(Natural Science Edition)
关键词
桃
酶
活度
辐照
peach
enzymes
activity
irradiation
