甜樱桃采后表皮蜡质形态及相关性质变化规律
Changes in epidermal waxy morphology and related properties of postharvest sweet cherry
张玉蕾 1崔清亮 2王愈 3刘亚平 3张燕青2
作者信息
- 1. 山西农业大学食品科学与工程学院,山西 晋中 030801;山西农业大学农业工程学院,山西 晋中 030801
- 2. 山西农业大学农业工程学院,山西 晋中 030801
- 3. 山西农业大学食品科学与工程学院,山西 晋中 030801
- 折叠
摘要
[目的]揭示不同品种甜樱桃耐贮性差异的原因,为其采后涂膜保鲜提供理论支持和技术指导.[方法]选取4个具有代表性的甜樱桃品种(红灯、雷尼、红玛瑙、友谊)作为研究对象,对采收时不同品种甜樱桃果皮蜡质的形态、果皮对不同溶液的接触角以及红玛瑙樱桃在贮藏期间表皮蜡质形态、接触角、临界表面张力的变化进行了探究.[结果]4个品种甜樱桃在采收时表皮的蜡质分布和形态均存在差异,表皮对于同一种溶液的接触角存在显著差异;红玛瑙樱桃表皮蜡质在贮藏期间呈减少趋势;由于甜樱桃表皮的疏水性,在配制涂膜液时,向其中添加0.1％的吐温-20作为表面活性剂可显著提高涂膜液在其表面的润湿性;红玛瑙樱桃贮藏期间表皮对去离子水的接触角呈下降趋势,并且其临界表面张力随贮藏时间的延长不断升高.[结论]不同品种甜樱桃耐贮性的差异可能与其表皮特性相关联,在涂膜保鲜液中添加0.1％的吐温-20可使涂膜液更均匀地涂覆在甜樱桃表面.
Abstract
[Objective]This study aimed to reveal the reasons of different varieties for sweet cherry's storability and provide theoretical support and technical guidance for edible coating in its postharvest preservation.[Methods]Four representative sweet cherry varieties(Red Light,Rainey,Red Agate,and Friendship)were selected as research objects.The surface morphology of different varieties of sweet cherry skin,the contact angle of skin to different solutions,the changes of surface morphology,contact angle and critical surface tension of Red Agate sweet cherry during storage were investigated.[Results]There were differences in the distribution and morphology of wax on the epidermal of the four varieties of sweet cherry,and the contact angle of the skin to the same solution was significantly different.The wax content of the Red Agate epidermis decreased during storage.Due to the hydrophobicity of sweet cherry skin,adding Tween-20 as a surfactant to the coating liquid can significantly improve its surface wettability.The contact angle of the Red Agate epidermis to deionized water decreased during storage,and the critical surface tension increased with the extension of storage time.[Conclusion]The storability of different varieties of sweet cherries may be correlated with their skin characteristics.Adding 0.1％Tween-20 to the coating solution can make the solution more evenly coated on the surface of the sweet cherry.
关键词
甜樱桃/表皮蜡质/接触角/临界表面张力Key words
sweet cherry/epidermal waxy morphology/contact angle/critical surface tension引用本文复制引用
基金项目
山西省基础研究计划项目(202203021212470)
山西农业大学博士科研启动项目(2021BQ89)
山西省博士毕业生、博士后研究人员来晋工作奖励经费科研项目(SXBYKY2022028)
出版年
2024
国家科技期刊平台
NSTL
万方数据