干燥方法对胡卜片的干燥特性,质量属性,水分迁移和微观结构的影响
Xi Wang1,2, Yongkang Xie2, Xinxin Lin1
1School of Biological Science and Engineering, Hebei University of Economics and Business, Shijiazhuang, China.
Journal of the science of food and agriculture
|December 6, 2025
概括
真空冷干燥 (VFD) 最好保存胡卜的营养和结构,而中短波红外干燥 (MSWID) 和热与红外干燥 (FI-HPD) 结合提供高效,节能干燥. 这些发现有助于选择最佳的胡卜加工方法.
科学领域:
- 食品科学 食品科学 食品科学
- 农业工程 农业工程
- 材料科学 是一种材料科学.
背景情况:
- 新鲜的胡卜容易腐烂,因此需要使用干燥等有效的保存方法.
- 干燥可以减少收获后的损失,并延长胡卜的保质期.
- 选择合适的干燥技术对于保持胡卜质量至关重要.
研究的目的:
- 评估各种干燥方法对胡卜切片的影响.
- 分析干燥特性,营养含量和微观结构.
- 通过低场核磁共振 (LF-NMR) 调查水的迁移模式.
主要方法:
- 热空气干燥热空气干燥
- 热干燥 (HPD) 热干燥
- 远红外干燥 远红外干燥
- 热与红外干燥相结合 (FI-HPD)
- 中波和短波红外干燥 (MSWID)
- 真空冷干燥 (VFD) 是一种冷干燥技术.
- 低场核磁共振 (LF-NMR) 用于水的迁移分析.
主要成果:
- MSWID显示了最高的干燥效率;FI-HPD显示了最低的能源消耗.
- VFD样本具有优越的补水特性和微观结构,而MSWID样本具有更好的纹理.
- VFD保留了维生素C,总,总糖和β-胡卜素的最高水平;MSWID和FI-HPD显示了特定营养素的良好保留.
- LF-NMR表明湿度从外向向内迁移,MSWID加速了初始的水转移.
结论:
- 在维护胡卜切片的营养含量和结构完整性方面,VFD非常出色.
- MSWID和FI-HPD提供了一种平衡的干燥效率,节能和产品质量的方法.
- 该研究为根据所需产品结果选择胡卜干燥方法提供了基础.
相关概念视频
Drying Shrinkage
333
When hardened concrete is exposed to air with a relative humidity of less than 100 percent, it begins to lose the free water within its capillaries. As this water evaporates, the water initially adsorbed onto the calcium silicate hydrates migrates towards these now empty spaces and eventually evaporates as well. Over time, as more water leaves, the volume of the concrete decreases, a phenomenon known as drying shrinkage.
A portion of this drying shrinkage can be reversed; if the concrete is...
A portion of this drying shrinkage can be reversed; if the concrete is...
333
Porosity and Absorption of Aggregate
718
Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
718
Factors Affecting Workability
273
The workability of concrete is a critical characteristic that influences the ease of mixing, handling, and finishing the concrete. It is affected by several factors including water content, aggregate properties, and admixtures like air entrainment. Water plays a fundamental role as it lubricates the concrete mix, facilitating easier movement and placement. However, the water requirement varies depending on the texture and shape of aggregates. Finer particles and angular, rough-textured...
273
Factors Affecting Dissolution: Particle Size and Effective Surface Area
1.5K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.5K


