Abstract: Citri Grandi Exocarpiums drying is a very important step in production and processing, this paper investigates the development status of Citri Grandis Exocarpium drying, reasonably analyzes the scientific and technical problems in this field, and provides references and countermeasures for the rational development of Citri Grandis Exocarpium industry. According to the characteristics of Citri Grandis Exocarpium, the current status of related technologies and equipments used in this field are scientifically investigated. By combining the traditional drying process of Citri Grandis Exocarpium and existing drying methods for Chinese Medicinal Herb, the effects of different drying equipments are compared and studied on the following considerations: the effective components and quality of Citri Grandis Exocarpium, the adaptability and economy of drying machines. Then, the technical deficiencies of drying methods and equipments are discussed, and the key technologies and development trends are analyzed. In the current drying industry of Citri Grandis Exocarpium, the traditional drying room, sunlight drying and shade drying have the lowest cost, microwave drying and hot air drying have the highest efficiency, and vacuum freeze drying and variable temperature pressure differential puffing drying retain the most active ingredients of Citri Grandis Exocarpium. However, each drying method has its disadvantages through comprehensive analysis of all aspects, therefore it is necessary to explore and master the traditional drying process and characteristic parameter changes of Citri Grandis Exocarpium, and to establish the quality grade standards and the technical drying standards for Citri Grandis Exocarpium, in addition, it is a potentially feasible way to use combined drying technologies for maximizing the advantages of each drying method.

Key words: Citri Grandis Exocarpium, drying technology, mechanized drying equipment, traditional drying process, combined drying technologies； processing of agricultural products

摘要： 化橘红烘干是其生产加工过程中非常重要的一个环节，通过调研化橘红干燥发展现状，合理分析该领域存在的科学与技术问题，为化橘红产业合理化发展提供参考和对策。根据化橘红自身特性，科学调研本领域应用的相关技术装备现状，通过结合化橘红传统干燥工艺和中草药领域现有的干燥方法，对比研究不同干燥方法及装备对化橘红有效成分和品质的影响，并充分考虑适应性和经济性等问题，浅析化橘红干燥装备的技术缺陷和不足，同时对该领域急需解决的关键技术和发展趋向进行合理分析。在当前化橘红干燥行业中，传统烘干房干燥设施和阳光生晒、阴干干燥设施的成本最低，微波干燥和热风干燥设备的效率最高，真空冷冻干燥和变温压差膨化干燥设备对化橘红的有效成分保留最多，但从效率、成本、有效成分损耗等各方面综合分析来看，各干燥设施或设备均存在不足之处，因此需要在探究并掌握化橘红传统干燥工艺流程及参数变化规律的基础上，建立化橘红干燥技术标准和品质等级标准，合理利用各干燥设备的优势，进行联合干燥，将各干燥方式的优势最大化。

关键词: 化橘红；干燥技术；机械化干燥设备；传统干燥工艺；联合干燥技术, 农产品加工