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李想,陈洁,张惠萍,何蝶,陈湘柳,周一苗,肖作为.茯苓健脾速溶茶原料及成品吸湿性比较研究[J].湖南中医药大学学报英文版,2022,42(9):1465-1469.[Click to copy
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| 茯苓健脾速溶茶原料及成品吸湿性比较研究 |
| 李想,陈洁,张惠萍,何蝶,陈湘柳,周一苗,肖作为 |
| (湖南中医药大学药学院药食同源实验室, 湖南 长沙 410208;湖南中医药大学药学重点学科, 湖南 长沙 410208;湖南中医药大学食品药品工程系, 湖南 长沙 410208) |
| 摘要: |
| 目的 确定茯苓健脾速溶茶原料在制备过程中需要达到的相对湿度（relatwe humidity,RH）条件，并且求出其在对应的RH条件下进行加工制备需要的最长时间，对成品制备过程中需要的原料和其最终产品进行吸湿性研究。方法 测定茯苓健脾速溶茶（粉剂）原料及成品在不同湿度溶液中的吸湿速率，计算原料及成品的临界相对湿度（critical relative humidity,CRH）。根据吸湿速率，建立数学模型，绘制曲线，求出在吸湿速率参数和吸湿率都是5%时所需的相对湿度条件以及工艺时间，再用解析几何求算CRH。结果 25℃时，在RH=66.0%、77.0%、88.2%、99.0%的条件下，茯苓健脾速溶茶（粉剂）原料和成品吸湿百分率达到5%所需要的时间为其在在空气中暴露3.25 h和56.26 h、2.56 h和25.84 h、2.02 h和19.17 h、1.90 h和5.03 h；25℃时，茯苓健脾速溶茶（粉剂）原料和成品的CRH为44.19%和67.33%，操作最长时间不超过4.04 h、4.87 h；可保证茯苓健脾速溶茶原料和制剂的吸水量低于5%，不影响制剂操作，使其顺利成型；加入辅料使吸湿百分率达到5%所需要的时间延长，速溶茶成品分别为原料的17.29倍（RH=66.0%）、10.08倍（RH=77.0%）、9.50倍（RH=88.2%）、2.65倍（RH=88.2%）。结论 茯苓健脾速溶茶（粉剂）成品的吸湿性远远低于原料，说明本品加入的辅料改善了原料的吸湿性。本实验结果可为确定工业化生产过程中茯苓健脾速溶茶（粉剂）原料及制备产品的加工环境的湿度和可以暴露在空气中的最长时间提供依据。 |
| 关键词: 茯苓健脾速溶茶 吸湿性 吸湿百分率 吸湿速度 临界相对湿度 数学模型 |
| DOI：10.3969/j.issn.1674-070X.2022.09.008 |
| Received:March 29, 2022 |
| 基金项目:湖南省中医药管理局科技研发重点项目(201923);长沙市科技局2019年科技项目(18B249)。 |
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| Comparative study one the hygroscopicity of raw materials and finished products of Fuling Jianpi instant tea |
| LI Xiang,CHEN Jie,ZHANG Huiping,HE Die,CHEN Xiangliu,ZHOU Yimiao,XIAO Zuowei |
| (Medicine and Food Homology Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China;Key Department of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China;Department of Food and Drug Engineering, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China) |
| Abstract: |
| Objective To determine the relative humidity (RH) conditions of the raw materials for Fuling Jianpi instant tea in the preparation; to obtain the longest time required for processing and preparation under the corresponding RH conditions; to explore the hygroscopicity of the raw materials needed in the preparation of finished products and the final product. Methods The moisture absorption rate of the raw materials and finished products of Fuling Jianpi instant tea (powder) in different humidity solutions was determined, and the critical relative humidity (CRH) of the raw materials and finished products of Fuling Jianpi instant tea (powder) was calculated. According to the moisture absorption rate, a mathematical model was established, and the curve was drawn. The relative humidity condition and the required processing time were calculated when the moisture absorption rate parameter and the moisture absorption rate were both 5%, and then the analytical geometry was used to calculate the CRH. Results At 25 ℃, under the conditions of RH (relative humidity)=66.0%, 77.0%, 88.2% and 99.0%, the time required for the moisture absorption percentage of raw materials and finished products of Fuling Jianpi instant tea (powder) to reach 5% was 3.25 h and 56.26 h, 2.56 h and 25.84 h, 2.02 h and 19.17 h, 1.90 h and 5.03 h after exposure to air; at 25 ℃, the CRH of raw materials and finished products of Fuling Jianpi instant tea (powder) was 44.19% and 67.33%, and the longest operation time did not exceed 4.04 h and 4.87 h; with the water absorption lower than 5%, the operation of the preparation could not be affected and the raw materials and preparations of Fuling Jianpi instant tea could form smoothly; the time required for the addition of auxiliary materials to reach 5% of the moisture absorption percentage was 17.29 times that of the raw materials (RH=66.0%), 10.08 times (RH=77.0%), 9.50 times (RH=88.2%), and 2.65 times (RH=88.2%). Conclusion The hygroscopicity of the finished product of Fuling Jianpi instant tea (powder) is far lower than that of the raw material, indicating that the added auxiliary materials in this product can improve the hygroscopicity of the raw materials. The research can provide a basis for determining the humidity conditions and the longest time of exposure to the air in the operating environment of the raw materials and product of Fuling Jianpi instant tea (powder) in the industrial production process. |
| Key words: Fuling Jianpi instant tea hygroscopicity moisture absorption percentage moisture absorption rate critical relative humidity mathematical model |
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