鲜切茄子冷藏生理及品质的研究  被引量:8

Study on cold storage physiology and quality of the fresh-cut eggplant

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作  者:王肽[1] 谢晶[1] 余江涛[1] 吴圣彬[1] 杨晓丹[1] 缪洛玘 

机构地区:[1]上海海洋大学食品学院,上海201306

出  处:《食品工业科技》2014年第4期310-314,共5页Science and Technology of Food Industry

基  金:国家级星火计划课题(2012GA680003);上海绿色菜产业技术体系

摘  要:以新鲜的茄子为实验材料,对不同贮藏温度下的鲜切茄子的品质变化和保鲜效果进行了研究。新鲜的茄子经过切分处理后,用聚乙烯保鲜膜(厚度0.02mm)包装,分别贮藏于相对湿度(RH)85%~90%的(5±2)、(10±2)、(15±2)、(22±2)℃(室温)恒温恒湿箱中,每天测定鲜切茄子的褐变度、抗坏血酸、可滴定酸、多酚氧化酶(PPO)和过氧化物酶(POD)的活性等指标。结果表明:(5±2)℃和(10±2)℃与贮藏于(15±2)℃和(22±2)℃(室温)的贮藏条件相比,可以显著(p〈0.05)抑制鲜切茄子组织褐变以及PPO和POD的活性,降低质量损失率,延缓组织中抗坏血酸、可滴定酸、可溶性固形物的下降。The experiment selected fresh eggplant as experimental material, the effect of different storage temperatures on quality and preservation of fresh -cut eggplant was investigated. Fresh eggplants were packaged with 0.02mm polyethylene packaging film after cutting processing to storage in cooling incubators at 85 % - 90 % relative humidity ( RH) and different temperatures (5 ± 2) , ( 10 ± 2) , ( 15 ± 2) , (22 ± 2) ℃ ( room temperature) ,respectively. Browning degree (BD), the contents of ascorbic acid and titratable acid, activities of polyphenol oxidase(PPO) and peroxidase(POD) were measured every day. Results indicated that (5±2)℃ and ( 1 O± 2) ℃ showed significantly (p〈0. 05) inhibition of fresh -cut eggplant tissue browning, the activity of PPO and POD and weight loss rate during storage ,compared with (15±2)℃ and (22±2)℃(room temperature), delayed the descend of titratable acid content and ascorbic acid content.

关 键 词:贮藏温度 鲜切茄子 品质 

分 类 号:TS255.3[轻工技术与工程—农产品加工及贮藏工程]

 

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