[根据LF-NMR/MRI,在不同的干燥温度下经过九次蒸汽和日晒干燥处理的多角茎的干燥动力学和质量变化]
Shu-Han Jin1, Jin-Lian Zhang1, Lei Gao1
1Jiangxi University of Chinese Medicine Nanchang 330004, China.
概括
优化多边形树的加工包括了解干燥动力学和水分变化. 蒸四个周期,然后在70°C的温度下干燥,可以获得最优质的Polygonati Rhizoma蒸片.
科学领域:
- 食品科学与技术 食品科学与技术
- 传统中国医学的加工加工.
- 干燥工程 干燥工程
背景情况:
- 多边形树根的加工涉及复杂的蒸汽和阳光干燥周期.
- 了解干燥参数对质量的影响对于传统医学至关重要.
- 现有的加工方法需要科学验证才能优化.
研究的目的:
- 为了建立一个干燥动力学模型,通过九个蒸汽-太阳-干燥循环处理的多边形树.
- 分析不同干燥温度 (60-80°C) 对质量变化的影响.
- 使用LF-NMR/MRI和化学分析阐明干燥机制.
主要方法:
- 使用Page模型建模干燥动力学.
- 低场核磁共振 (LF-NMR) 和磁共振成像 (MRI) 用于分析水的状态.
- 综合质量评价的AHP-CRITIC混合权重方法 (多糖,5-基甲基,多重A,提取物).
主要成果:
- 佩奇模型准确地描述了多边形树干燥动力学.
- 有效的水扩散系数范围从9.89 × 10−8到2.03 × 10−7 m2·s−1.1.
- 蒸汽循环的增加降低了水含量,并将自由水转化为结合水;较高的温度降低了水含量.
- 在全面评估的基础上,四个循环蒸,70°C干燥的样本显示出最佳质量.
结论:
- 干燥动力学和LF-NMR/MRI有效量化了在多角茎加工过程中的水分变化.
- 这项研究为优化九循环蒸汽和阳光干燥过程提供了科学基础.
- 最佳的加工条件 (四个蒸周期,70°C干燥) 提高了多边形树根的质量.
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