Refractance window dehydration technology: A novel contact drying method
Refractance window dehydration technology: A novel contact drying method
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DOI：
10.1080/07373930601152673
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发表时间：
2007-01-01
影响因子：
3.3
通讯作者：
Tang, J.
中科院分区：
文献类型：
--
作者：
Nindo, C. I.;Tang, J.
折射窗（R）（RW）系统是一种新型干燥方法，用于将液体食品和其他相关生物材料转化为具有附加值的粉末，薄片或薄片。在这种系统中，由水果、蔬菜或草药制备的果泥或果汁在短时间内干燥，通常为3-5分钟，从而产生具有优异颜色、维生素和抗氧化剂保留的产品。与冷冻干燥相比，RW干燥系统简单且相对便宜，冷冻干燥通常需要大型装置才能经济。在RW干燥系统中，热能从热水转移到塑料传送带上薄薄的一层果泥或果汁上。这些干燥系统在大气压下操作，用于炒蛋混合物、鳄梨粉、含类胡萝卜素高的藻类、草药提取物和人类营养补充剂、食品配料以及干果和蔬菜的商业生产。本文介绍了折射窗（R）干燥的原理，并重点介绍了一些结果，这些结果显示了其潜力，以及它与加工水果、蔬菜和其他热敏产品的其他干燥机的比较。
Refractance Window (R) (RW) system is a novel drying method for converting liquid foods and other related biomaterials into powders, flakes, or sheets with added value. In this system, purees or juices prepared from fruits, vegetables, or herbs dry in short times, typically 3-5 min, resulting in products with excellent color, vitamin, and antioxidant retention. The RW drying systems are simple and relatively inexpensive when compared with freeze drying, which usually needs large installations to be economical. In RW drying systems thermal energy is transferred from hot water to a film of puree or juice spread thinly on a plastic conveyor belt. These drying systems operate at atmospheric pressure and are used for commercial production of scrambled egg mix, avocado powder, high carotenoid-containing algae, herbal extracts and human nutrition supplements, and food ingredients, as well as dried fruits and vegetables. This article presents the principle of Refractance Window (R) drying and highlights some results that show its potential and how it compares with other dryers for processing fruits, vegetables, and other heat-sensitive products.