用超声波辅助的绿色技术去咖啡因Gayo阿拉伯咖啡:过程参数优化和动力建模
Yuyun Yuniati1, Jimmy Jimmy2, Yoyok Budi Pramono3
1Department of Food Technology, Dr. Soetomo University, Jl. Semolowaru No.8, Surabaya 60111, Indonesia.
Ultrasonics sonochemistry
|October 20, 2025
概括
超声波辅助提取 (UAE) 提供了一种绿色,无溶剂的方法来脱咖啡因阿拉伯咖啡. 在最佳条件下,可获得68%的咖啡因回收,证明了高效和可持续的咖啡脱咖啡.
科学领域:
- 食品科学与技术 食品科学与技术
- 绿色化学 绿色化学
- 工艺工程是过程工程.
背景情况:
- 越来越多的健康问题需要在阿拉伯咖啡中减少咖啡因.
- 传统的脱咖啡因方法可能会影响咖啡的生物活性和感官特性.
- 开发可持续和高效的脱咖啡因化技术至关重要.
研究的目的:
- 研究超声波辅助提取 (UAE) 作为一种绿色,无溶剂的方法,用于选择性地去咖啡因Gayo Arabica咖啡.
- 为了评估提取时间,料与溶剂比率以及温度对咖啡因提取的影响.
- 模拟脱咖啡因化动力学并确定最佳提取参数.
主要方法:
- 超声辅助提取 (UAE) 使用水作为溶剂.
- 提取参数的系统变化:时间 (2-12分钟),料与溶剂的比率 (0.100-0.150g/mL) 和温度 (40-70°C).
- 动力建模使用六种模型 (一级,二级,超标,功率定律,埃洛维奇,韦布尔) 和统计验证 (ANOVA).
主要成果:
- 提取表现出双相行为:快速释放阶段 (2-10分钟) 和缓慢的扩散控制阶段 (10-12分钟).
- 功率定律模型最好地描述了动力学 (R2高达0.9881,RMSE低至0.0017).
- 在最佳条件 (60°C,10分钟,0.125g/mL F/S比率) 中,咖啡因回收率为66-68%,功率定律常数表明质量转移增强.
结论:
- 阿联是阿拉伯咖啡咖啡脱咖啡因的有效,节能和快速方法.
- 动力定律模型为优化阿联流程提供了一个强大的动力框架.
- 这项研究推进了可持续的脱咖啡因技术,并为植物性提取提供了可扩展的方法.
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