摘要
目的考察莲子等温吸湿的吸附与解吸附特性,明确其等温吸湿和解吸规律,以更好地指导莲子的干燥加工和包装储藏,为防止莲子吸水过多而霉变提供数据支持。方法在25℃条件下,采用基于动态水分吸附法的AQUALAB VSA等温吸湿曲线测定仪记录莲子及其粉末对水分的等温吸附和解吸附曲线,将所得数据采用8种常用模型拟合,引入相关系数(R^2)和赤池信息准则(AIC)评价各个模型的准确性和可靠性。结果 25℃时,莲子药材及粉末的吸附和解吸附曲线趋势基本相同,Peleg模型为描述莲子吸附和解吸附特性的最佳模型。结论通过对莲子等温吸附与解吸附曲线的考察,可以更好地了解中药材吸附与解吸附特性和规律,对指导中药材的合理加工、包装和储藏,保证药材质量和安全具有重要意义。
Objective This study aimed to investigate and clarify the isothermal moisture adsorption and desorption characteristics and rules of lotus seeds,so as to better guide the drying processing,packing and storage of this traditional Chinese medicine(TCM)for providing supports to prevent lotus seeds from being mouldy due to excessive water absorption.Methods The isothermal adsorption and desorption curves of lotus seeds at 25℃were recorded by AQUALAB VSA instrument based on Dynamic Dew-point Isotherm,and the obtained data were fitted by eight commonly-used models.Correlation coefficient(R2)and Akaike information criterion(AIC)were introduced to evaluate the accuracy and reliability of each model.Results The results showed that the adsorption and desorption curves of lotus seeds at 25℃all exhibited the similar trends and shapes,and Peleg model was the best for describing the adsorption and desorption characteristics.Conclusion The study will provide helpful references for better holding the adsorption and desorption characteristics and rules of TCMs can promote the study of adsorption of Chinese herbal medicine pieces on desorption,which is of great significance for guiding the suitable processing,packaging and storage progresses of TCMs,as well as for warranting their quality and safety.
作者
廖晓芳
周立东
孔维军
Liao Xiaofang;Zhou Lidong;Kong Weijun(Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences&Peking Union Medical College,Beijing 100193,China)
出处
《世界科学技术-中医药现代化》
CSCD
北大核心
2020年第3期817-822,共6页
Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology
基金
国家自然科学基金委员会面上项目(81673593):基于脱氧核酶和纳米探针双重信号放大的电致化学发光超敏传感器现场检测中药真菌毒素研究,负责人:孔维军
中国医学科学院医学与健康科技创新工程项目(2016-I2M-3-010):药物药效和安全性相关的关键分析新技术研究子任务,负责人:孔维军
中华中医药学会青年人才托举工程项目(QNRC2-B02):人才项目,负责人:孔维军。
关键词
莲子
动态露点等温线法
吸湿和解吸特性
模型
Lotus Seeds
Dynamic Dew-point Isotherm
Moisture Adsorption and Desorption
Model
