Wang Tong, Jiao Jiao, Gai Qing-Yan, Wang Peng, Guo Na, Niu Li-Li, Fu Yu-Jie
Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China.
Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China.
J Pharm Biomed Anal. 2017 Oct 25;145:339-345. doi: 10.1016/j.jpba.2017.07.002. Epub 2017 Jul 4.
Nowadays, green extraction of bioactive compounds from medicinal plants has gained increasing attention. As green solvent, deep eutectic solvent (DES) have been highly rated to replace toxic organic solvents in extraction process. In present study, to simultaneous extraction five main bioactive compounds from fig leaves, DES was tailor-made. The tailor-made DES composed of a 3:3:3 molar ratio of glycerol, xylitol and D-(-)-Fructose showed enhanced extraction yields for five target compounds simultaneously compared with traditional methanol and non-tailor DESs. Then, the tailor-made DES based extraction methods have compared and microwave-assisted extraction was selected and optimized due to its high extraction yields with lower time consumption. The influencing parameters including extraction temperature, liquid-solid ratio, and extraction time were optimized using response surface methodology (RSM). Under optimal conditions the extraction yield of caffeoylmalic acid, psoralic acid-glucoside, rutin, psoralen and bergapten was 6.482mg/g, 16.34mg/g, 5.207mg/g, 15.22mg/g and 2.475mg/g, respectively. Macroporous resin D101 has been used to recovery target compounds with recovery yields of 79.2%, 83.4%, 85.5%, 81.2% and 75.3% for caffeoylmalic acid, psoralic acid-glucoside, rutin, psoralen and bergapten, respectively. The present study suggests that DESs are truly designer and efficient solvents and the method we developed was efficient and sustainable for extraction main compounds from Fig leaves.mg/g.
如今,从药用植物中绿色提取生物活性化合物越来越受到关注。作为绿色溶剂,深共熔溶剂(DES)在提取过程中被高度评价以替代有毒有机溶剂。在本研究中,为了从无花果叶中同时提取五种主要生物活性化合物,定制了DES。由甘油、木糖醇和D-(-)-果糖以3:3:3摩尔比组成的定制DES与传统甲醇和非定制DES相比,同时对五种目标化合物显示出更高的提取率。然后,对基于定制DES的提取方法进行了比较,并选择和优化了微波辅助提取,因为它具有高提取率和较低的时间消耗。使用响应面法(RSM)优化了包括提取温度、液固比和提取时间在内的影响参数。在最佳条件下,咖啡酰苹果酸、补骨脂素葡萄糖苷、芦丁、补骨脂素和佛手柑内酯的提取率分别为6.482mg/g、16.34mg/g、5.207mg/g、15.22mg/g和2.475mg/g。大孔树脂D101已用于回收目标化合物,咖啡酰苹果酸、补骨脂素葡萄糖苷、芦丁、补骨脂素和佛手柑内酯的回收率分别为79.2%、83.4%、85.5%、81.2%和75.3%。本研究表明,DES是真正的设计型高效溶剂,我们开发的方法对于从无花果叶中提取主要化合物是高效且可持续的。mg/g。