用异二醇丰富的果的湿度吸收异热和热力学特性
Juliana Rodrigues do Carmo1, Jefferson Luiz Gomes Corrêa1, Matheus de Souza Cruz1
1Department of Food Science, Federal University of Lavras, Lavras, Brazil.
Journal of the science of food and agriculture
|August 26, 2025
概括
用异二醇进行透处理可增强片中的水结合,使吸附过程自发且由度驱动. 这突出了同质素
科学领域:
- 食品科学
- 热力学
- 物理化学
背景情况:
- 对于优化食品加工和储存而言,吸湿异热和热力学参数至关重要.
- 了解这些特性有助于设计有效的果干燥和保存策略.
研究的目的:
- 评估未经处理和经透处理的果片的吸水特性和热力学参数.
- 为了比较异和糖作为透剂对果水结合特性的影响.
主要方法:
- 在温度范围 (313.15353.15 K) 中使用静态重力测量方法确定湿度吸附等温度.
- 使用克劳西乌斯-克莱佩隆方程计算了吸附的净同位热,微分,和吉布斯自由能量.
- 将实验数据与各种模型相匹配,古根海姆-安德森-德布尔 (GAB) 模型显示出最合适的模型.
主要成果:
- 吸附等温体表现出II型和III型的行为,平衡水分随温度升高而下降.
- 在未经处理的果,用糖糖处理的果和用异糖处理的果中,在特定的平衡水分水平下实现了微生物稳定性.
- 用异二醇处理的果对水的亲和力最高,具有自发的和由热驱动的吸附过程.
结论:
- 和补偿分析证实所有样品的吸附都是由驱动的.
- 由于其优越的水结合能力,异醇是一种有前途的功能性透剂.
- 这项研究为优化果加工和储存提供了有价值的数据.
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