Yue Yingying, Li Qingyang, Fu Yan, Chang Jie
School of Chemistry and Chemical Engineering, South China University of Technology, No. 381, Wushan Road, Guangzhou 510640, China.
Key Laboratory of Heat Transfer Enhancement and Energy Conservation of Education Ministry, South China University of Technology, No. 381, Wushan Road, Guangzhou 510640, China.
ACS Omega. 2021 Dec 8;6(50):34857-34865. doi: 10.1021/acsomega.1c05541. eCollection 2021 Dec 21.
A green and inexpensive natural deep eutectic solvent (NADES) was screened and integrated with an ultrasonic technique for extracting chlorogenic acid (CGA) from artemisiae scopariae herba. Response surface methodology was employed to investigate significant factors and optimize their influence. Proline-malic acid exhibited an excellent extraction capacity with a yield of 28.23 mg/g under the optimal conditions of water content of 15% (wt), solid-liquid ratio of 1.0/10 (g/mL), ultrasonic power of 300 W, and extraction time of 25 min. Simultaneously, the stability and antioxidant activity analysis exhibited a better performance of CGA in NADES than that in water and ethanol. The hydrogen-bonding interaction between CGA and natural deep eutectic molecules enhanced the stability and meanwhile protected the antioxidant activity of CGA.
筛选出一种绿色且廉价的天然低共熔溶剂(NADES),并将其与超声技术相结合,用于从茵陈蒿中提取绿原酸(CGA)。采用响应面法研究显著因素并优化其影响。在水含量为15%(wt)、固液比为1.0/10(g/mL)、超声功率为300 W和提取时间为25 min的最佳条件下,脯氨酸-苹果酸表现出优异的提取能力,产率为28.23 mg/g。同时,稳定性和抗氧化活性分析表明,CGA在NADES中的性能优于在水和乙醇中的性能。CGA与天然低共熔分子之间的氢键相互作用增强了稳定性,同时保护了CGA的抗氧化活性。