摘要
本试验探讨了鲜枣的VC含量与抗坏血酸氧化酶和多酚氧化酶活性的关系以及采前CaCl_2和6-BA处理对采后枣果VC含量和两种氧化酶活性的影响。结果表明,枣果贮藏过程中VC含量先积累后降低,VC含量与抗坏血酸氧化酶活性、多酚氧化酶活性呈显著负相关。采前用1％CaCl_2、15mg/kg6-BA和1％CaCl_2+15mg/kg6-BA对枣果进行喷雾处理,能显著抑制贮藏后期抗坏血酸氧化酶活性和多酚氧化酶活性,降低VC损失率,从而较好地保存了枣果的营养价值。
The relation between VC content and two oxidase activity, the effect of CaCl_2 and 6-BA preharvest treatments on VC content and its oxidase activity in postharvest jujube fruits were studied. The results showed that during storage periods, VC content firstly accumulated and then decreased; the ascorbic acid content was siginificantly negetive interrelated to the activities of ascorbic acid oxidase and PPO. When 1％CaCl_2, 15mg/kg 6-BA and 1％CaCl_2+15mg/kg 6-BA were sprayed on jujube fruits before harvest, the activities of two oxidases were inhibited, and the loss of VC was reduced, thus keeping the nutrition value of jujube fairly.
出处
《中国食品学报》
EI
CAS
CSCD
2001年第2期37-40,共4页
Journal of Chinese Institute Of Food Science and Technology
基金
山西省科技攻关项目(No.961018)
