枇杷果实贮藏生理的研究  

On the post-harvest physiology of the loquat(Eriobotrya japonical Lindl)fruits

作　　者：刘卫民[1] 谢云[1] 周薇[1] 袁丽芳[1] 

机构地区：[1]福州大学轻工学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2004年第1期110-113,117,共5页Journal of Fuzhou University(Natural Science Edition)

摘　　要：于两个枇杷采收季节对不同贮藏温度下枇杷果实中过氧化物酶活性和呼吸强度的变化进行了研究,同时测定了贮藏中果实的总糖、还原糖、有机酸和维生素C的含量.研究表明,低温(5+0.5)℃显著延缓了果实种子中过氧化物酶活性的变化,推迟了果实呼吸高峰的出现时间,有利于各营养成分的保存.枇杷果实采收后,采用适宜的低温贮藏结合PE薄膜袋包装是一种较为理想的保鲜手段.In 1999 and 2003 harvest seasons of the loquat fruits, an investigation was carried out to (determine) the respiratory rate and the peroxidase activity under the different storage temperature. The contents of total saccharide, reductive monosaccharide, organic acid and vitamin C were assayed. The research revealed that the respiratory rate of the loquat fruits is inhibited by lower temperature(5+(0.5))℃, and stimulated by higher temperature(25+1.0)℃ significantly, and the peroxidase activity appears different at each of three portions of the fruits. The peroxidase is the most active at the seed, more active at the flesh than at the peel. The peroxidase activity of fruits can be kept for a longer time at low temperature. The fruit climacteric peak can be delayed by the low temperture(5+0.5)℃, and it is useful for preserving the nourishment of the fruits as well. It is better to refrigerate the postharvest loquat fruits with the PE plastic bags under the suitable temperature.

关 键 词：枇杷 贮藏生理 过氧化物酶活性 呼吸强度 

分 类 号：Q554.6[生物学—生物化学]