LED持续光照处理对甜瓜贮藏特性及糖代谢的影响  

Effects of continuous illumination with LED on storage characteristics and sugar metabolism of muskmelon

作　　者：姚军 郑贺云 张翠环 再吐娜·买买提 耿新丽 YAO Jun;ZHENG Heyun;ZHANG Cuihuan;Zaituna Maimaiti;GENG Xinli(Research Institute of Grape and Melon of Xinjiang Uygur Autonomous Region,Shanshan Xinjiang 838200,China)

机构地区：[1]新疆维吾尔自治区葡萄瓜果研究所,新疆鄯善838200

出　　处：《新疆农业科学》2023年第7期1689-1697,共9页Xinjiang Agricultural Sciences

基　　金：财政部和农业农村部:国家现代农业产业技术体系(CARS-25);新疆维吾尔自治区公益性科研院所项目(KY20200058)。

摘　　要：【目的】分析LED单色光对甜瓜贮藏期贮藏特性及糖分含量的影响,研发甜瓜采后保鲜新技术。【方法】以甜瓜品种西州密25号为试材,在7℃条件下分别采用发光二极管(LED,light emitting diode)红、蓝、白单色弱光(30 lx)持续照射,研究LED红、蓝、白单色弱光对甜瓜采后贮藏过程中贮藏特性及糖分含量的影响。【结果】LED以白色光在减少腐烂发生、延缓硬度下降效果最好,红色光在保持甜瓜果皮颜色上效果最好;LED光照处理组对甜瓜的可溶性固形物含量保持上较为明显,LED光照处理组延缓了甜瓜贮藏中后期果肉中蔗糖、葡萄糖、果糖的降解速率。其中白色光对保持甜瓜贮藏期糖分含量上效果最明显。【结论】LED持续光照处理延缓了可溶性固形物含量下降和贮藏前期失重率的下降,保持了甜瓜果皮颜色,减少了腐烂发生,延缓了果肉硬度的下降。【Objective】In order to study the effect of LED monochromatic light on the storage characteristics and sugar content of muskmelon during storage and to develop a new technology for postharvest preservation of muskmelon.【Methods】The melon variety Xizhoumi25 was used as material,the effects of low light intensity of red,blue and white light-emitting diode on storage characteristics and sugar content of postharvest muskmelon were studied at 7℃cryostat.【Results】LED of white light had the best effect on reducing rot and delay the decrease of hardness,and red light had the best effect on keeping the color of melon peel;it was found that the degradation rate of sucrose,glucose and sucrose in muskmelon flesh was delayed in the middle and late stage of storage by LED light treatment,according to the analysis of fructose,fructose and glucose in flesh by High-performance liquid chromatography.White light had the best effect on the sugar content of muskmelon during storage.【Conclusion】The results showed that LED delayed the decline of soluble solids content,and weight loss rate,kept the color of melon peel,reduced rot and delayed the decrease of pulp hardness.LED continuous illumination treatment has a significant effect on the preservation and sugar quality maintenance of muskmelon during storage.

关 键 词：甜瓜 LED 贮藏特性 果糖 蔗糖 葡萄糖 

分 类 号：S652[农业科学—果树学]