制冷技术2025，Vol.45Issue(4)：60-63,93,5.DOI:10.3969/j.issn.2095-4468.2025.04.204
预处理对火龙果升华干燥过程碳排放的影响
Effect of Pretreatment on Carbon Emissions During Sublimation Drying Process of Dragon Fruit
程丁铃 1余克志 1王付巍1
作者信息
- 1. 上海海洋大学食品学院,上海 201306
- 折叠
摘要
Abstract
To shorten the sublimation drying cycle of dragon fruit in vacuum freeze-drying,reduce carbon emissions during this stage and improve freeze-drying efficiency,the dragon fruit slices are subjected to vacuum freeze-drying at different pre-freezing temperatures(-20 ℃,-30 ℃ and-40 ℃).The sublimation drying rates and electricity consumption are analyzed under various conditions.The results show that the sublimation drying cycle of dragon fruit in vacuum freeze-drying is closely related to the pre-freezing temperature.When compared to a pre-freezing temperature of-20 ℃,a pre-freezing temperature of-30 ℃ reduces the sublimation drying time by 3 hours and decreases electricity consumption by 17.4％.It is demonstrated that adjusting the temperature during the pre-freezing stage can significantly shorten the sublimation drying cycle of dragon fruit in vacuum freeze-drying and effectively reduce carbon emissions in the sublimation drying phase.关键词
火龙果/真空冷冻干燥/预冻温度/碳排放量/升华干燥Key words
Dragon fruit/Vacuum freeze drying/Pre-freezing temperature/Carbon emissions/Sublimation drying分类
通用工业技术引用本文复制引用
程丁铃,余克志,王付巍..预处理对火龙果升华干燥过程碳排放的影响[J].制冷技术,2025,45(4):60-63,93,5.
