摘要
研究不同浓度ClO2(0、80、120mg/L)处理对20℃贮藏的"淮枝"荔枝病情指数、褐变指数、呼吸速率、乙烯释放量、可溶性固形物(TSS)、可滴定酸(TA)以及多酚氧化酶(PPO)、过氧化物酶(POD)、苯丙氨酸解氨酶(PAL)酶和丙二醛(MDA)含量的影响。结果表明:80、120mg/LClO2处理可明显抑制荔枝采后病害的发生,减缓褐变程度,抑制果实的呼吸速率、乙烯释放量、PPO和POD的活性,延缓果实TSS的降低,维持TA的含量,诱导PAL活性的增加,降低MDA的含量;80mg/LClO2处理效果最佳,较好地维持了荔枝果实的贮藏品质。
The effect of chlorine dioxide (CIO2) treatment on storage characteristics of harvested litchis in relation to fruit quality was investigated. Litchis were treated with 0, 80, 120 mg/L CIO2, and then stored at 20 ~. The results showed that CIO2 treatment significantly reduced litchi postharvest diseases index and browning index, suppressed respiration rate and ethylene production, inhibited polyphenol oxidase (PPO) and peroxidase (POD) activity, delayed the decrease of soluble solids (TSS), maintain TA content, induced phenylalnine ammonialyase (PAL) activity and decreased MDA content. It is suggested that 80 mg/L CIO2 treatment might be an effective way to maintain the quality of litchi fruit.
出处
《食品科技》
CAS
北大核心
2013年第6期46-50,53,共6页
Food Science and Technology
基金
国家自然科学基金-广东省联合基金项目(U0631004)
现代农业产业技术体系建设专项资金项目(nycytx-33)
农业部公益性行业(农业)科研专项(nyhyzx07-029)
关键词
荔枝
二氧化氯
品质
litchi
chlorine dioxide
quality