热处理减轻菠萝黑心病的作用研究  

Study on role of hot treatment in alleviating pineapple blackheart

作　　者：胡会刚[1] 胡玉林[1] 陈晶晶[1] 段雅洁[1] 庞振才[1] 谢江辉[1] 

机构地区：[1]中国热带农业科学院南亚热带作物研究所/农业部热带果树生物学重点实验室,广东湛江524091

出　　处：《广东农业科学》2015年第13期84-89,共6页Guangdong Agricultural Sciences

基　　金：海南省自然科学基金(312034;20153043);中央级公益性科研院所基本科研业务费专项(1251022012002)

摘　　要：冷藏能有效延长菠萝保鲜时间,但菠萝在低温下贮藏容易发生黑心病,品质变劣,严重制约了菠萝产业发展。为探讨热处理减轻低温贮藏下菠萝黑心病的作用,以菠萝主栽品种巴厘菠萝为试材,用热空气处理采后菠萝,研究热处理对贮藏期菠萝生理生化指标的影响,结果表明:热处理显著减轻了采后菠萝黑心病指数,降低了采后菠萝MDA含量,提高了冷藏期菠萝H2O2含量,延缓了整个贮藏期菠萝的SOD、POD活性下降速率,同时提高了冷藏期CAT活性,POD活性与黑心病指数显著相关。说明热处理可提高氧化酶活性,延缓采后菠萝果实衰老,从而减轻菠萝黑心病。Cold storage is effective to prolong the storage life of pineapple fruit, but a major problem is that low temperature usually causes blackheart in fruit, adversely affecting the quality and nutritional value of fruit, which seriously affects the pineapple industry development. To investigate the mechanism of hot treatment on alleviating pineapple blackheart, using cultivar ＇Paris＇ as material and hot air as treatment method, the effects of hot treatment on physiological and bio-chemical changes of harvested pineapple were studied, results showed that the hot treatment could effectively alleviate the blackheart index of harvested pineapple. The MDA contents of harvested pineapple were decreased by hot treatment, and the H202 contents increased. The hot treatment delayed the descending rate of SOD and POD activities during the whole harvested period, meanwhile the CAT activity increased. The POD activity was correlated significantly with blackheart index. These results suggested that hot treatment could increase the antioxidase activities to delay the pineapple senescence, thus reduced the blackheart of pineapple.

关 键 词：热处理 菠萝黑心病 低温贮藏 

分 类 号：S477.1[农业科学—农业昆虫与害虫防治]