【摘要】 阐述了超高压超临界微射流技术提取中药有效成分的方法及基本原理,对工艺流程进行了研究,优化了装置的结构,提高了提取效率。传统的方法不能有效提取中药有效成分,并且破坏了其中大部分热敏性物质,利用效率极低,应用超高压超临界微射流技术以中药牛蒡为例对其中的有效成分进行提取效果十分明显,具有常温提取有效成分,无因受热而产生的有效成分变性,提取得率高、提取液中的杂质少、提取时间短、节能等一系列优点,在纯度与提取率相同的条件下,提取时间由原来的至少1 h缩短为10 min。更多还原

【Abstract】 The research introduced the method and fundamental of extraction of effective components from plant cells,researched the process flow,optimized the structure of the device and increased the efficiency of the extraction.The effective components can not be extracted by conventional method and the heat-sensitive materials may be destroyed.The conventional method is low in effiency.With the aid of supercritical fluid jet under ultra-high pressure,the effective components in the Chinese herb,for example the burdock,can be effectively extracted.The characteristics of this method are featured as high efficient extraction of effective components,no effective components influenced by heat,low impurity in extracts,time-saving extraction and high energy efficiency.Under the circumstance of the same purity and extraction efficiency,the extraction time can be shortened from 1 hour to 10 minutes.更多还原