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(Citrus sinensis L.) 皮的电动力干燥:对生理化学质量和挥发性概况的比较评估
An-An Zhang1, Jia-Bao Ni1, Alex Martynenko2
1College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing 100083, China.
Food chemistry
|July 15, 2023
概括
使用交流电流 (AC) 的电动力学 (EHD) 干燥提供了一种比直流 (DC) 更快,更有效的方法来脱水皮. 这种新的技术可以保存有价值的生物活性化合物,并提高干燥效率.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物材料工程 生物材料工程
- 可持续化学 可持续化学
背景情况:
- 果皮是一种富含生物活性化合物的有价值的副产品,符合循环经济原则.
- 电动力学 (EHD) 干燥是一种有前途的脱水技术,用于热敏材料,如果皮.
- 优化EHD参数对于最大限度地保持果皮中的有价值成分至关重要.
研究的目的:
- 为了研究交流和直流电水力学干燥对果皮的影响.
- 评估不同电压水平对干燥特性和生物活性化合物保留的影响.
- 为了比较AC-EHD与DC-EHD在果皮脱水方面的疗效.
主要方法:
- 果皮使用在交流电 (AC) 和直流电 (DC) 下的电压从9到45kV的电流下进行电动力学 (EHD) 干燥来脱水.
- 分析了干燥动力学,保持水分的能力,酶失活,以及化合物,胡卜素和挥发性化合物的含量.
- 微观结构的变化,包括组织崩和细胞膜破裂,被评估与应用于电压的关系.
主要成果:
- 与DC-EHD相比,AC-EHD在同等电压下干燥时间显著缩短,这归因于电荷极化效应.
- 在EHD干燥中应用较高的电压导致组织崩和细胞膜破裂的增加.
- EHD处理影响了化合物,胡卜素和挥发性配置的转化和降解,其影响与应用于电压相关.
结论:
- 电动力干燥,特别是AC,增强了皮的脱水过程.
- AC-EHD有效地使酶失活,同时保持关键植物化学物质的完整性.
- 这项研究强调AC-EHD是保持皮质量和生物活性特性的一种优越方法.
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