CO_2超临界萃取法提取玫瑰类黄酮及其保健功能研究  

Extraction of Flavones from Rose by Supercritical CO2 Extraction Method and Research on Its Healthy Function

作　　者：何熹[1] 韩宁[1] 

机构地区：[1]山东轻工业学院成人教育学院,山东济南250353

出　　处：《安徽农业科学》2009年第26期12699-12700,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探讨采用CO2超临界萃取技术提取玫瑰黄酮的效果,研究玫瑰黄酮的保健功能。[方法]以玫瑰为材料,采摘后用乙醇浸提、浓缩,经过CO2超临界萃取,在提取玫瑰精油的同时,获得了玫瑰黄酮。以大鼠实验对象,对提取的玫瑰黄酮调节血脂功能进行动物实验。[结果]使用CO2超临界萃取技术从玫瑰中萃取的黄酮得率为0.55%,经喷雾干燥后的固体为紫红色粉末,黄酮含量(干重)为63 mg/g。动物实验证明,饲喂一定剂量的玫瑰黄酮可降低大鼠中血清TC、TG水平,提升HDL-C水平,具有降低血脂的功能。[结论]CO2超临界萃取除萃取玫瑰黄酮外,还能提取挥发性强的高价值产物玫瑰精油,而且还具有浓缩的功能,没有残留,为开发高附加值的玫瑰及其制品提供了新的思路。[ Objective ] The study aimed to discuss the effect of extracting the flavones from rose by supercritieal CO2 extraction method and research its health function. [ Method] With rose as the tested material, after harvest it was extracted and concentrated by ethanol and then ex- tracted by supercritical CO2 extraction and finally the rose flavones was obtained at the same time of extracting the essential oil from rose. The rat was used as the test object to conduct the animal test on the regulation of blood lipid function with the extracted rose flavones. [ Result] The flavones yield extracted from the rose by supercritical CO2 extraction technique were about 0.55%, the dried solid through spraying was the purplish red powder with the flavones content of 63 mg/g dry weight. The animal test proved that feeding the rose flavones at some dosage could decrease the TC and TG levels in the rat serum and raise HDL-C level, which showed the function of reducing blood lipid. [ Conclusion] The supercritical CO2 extraction method could extract the strong volatility and high value product of essential oil from rose except of extracting rose flavones, and also had the concentrated function with any residue, which provided a new thinking for developing the rose and its products with high additional value.

关 键 词：CO2超临界萃取 玫瑰精油 玫瑰黄酮 

分 类 号：TQ028.32[化学工程]