摘要
以"红富士"苹果为试材,研究2 mmol/L乙酰水杨酸(Acetylsalicylic acid,ASA)浸泡处理对损伤接种粉红单端孢(Trichothecium roseum)苹果果实霉心病的扩展及活性氧代谢的影响。结果表明,乙酰水杨酸处理可明显降低苹果果实采后发病率和病斑直径(p<0.05),提高果实过氧化氢(H_2O_2)累积和超氧阴离子(O_2^-·)的产生速率,增强果实中NADPH氧化酶(NOX)、超氧化物歧化酶(SOD)和过氧化物酶(POD)的活性,降低过过氧化氢酶(CAT)活性(p<0.05),增强果实的抗氧化系统活性,从而提高果实的采后抗病性和贮藏品质。
Apple fruit(Fuji)fruit was used as materials to study the effects of postharvest 2 mmol. L-1 of ASA treatment on lesion development inoculated with t. roseum and reactive oxygen metabolism. The results indicated that 2 mol. L-1 of ASA effectively inhibited lesion diameter and natural incidence development of apple fruit tissue inoculated with T.roseum increased during storage at room temperature (p 〈 0.05).The results also showed that ASA treatment promoted the hydrogen peroxide ( H2 02 ) content and O2-· production rate and enhanced the activities of NADPH oxidasc (NOX) , superoxide dismutase (SOD) , peroxidase(POD) while inhibited the eatalase (CAT)activity of apple (Fuji)fruit during late storage stage (p 〈 0.05 ), and improved the antioxidant system activity,then increased disease resistance and could maintain storage quality.
作者
邓惠文
赵磊
王锦锋
王应强
DENG Hui- wen;ZHAO Lei;WANG Jin- feng;WANG Ying- qiang(College of Agriculture and Forestry, Longdong University, Qingyang 745000, China;College of Mechanical Engineering, Longdong University, Qingyang 745000, China)
出处
《食品工业科技》
CAS
CSCD
北大核心
2018年第9期262-266,共5页
Science and Technology of Food Industry
基金
甘肃省自然科学基金项目(1506RJZM323)
关键词
乙酰水杨酸
苹果
霉心病
诱导抗病性
活性氧
Acetylsalicylic acid (ASA)
apple
moldy- core decay
disease resistance
reactive oxygen species (ROS)