High-voltage pulse-assisted extraction of flavonoids from kapok using deep eutectic solvent aqueous solutions. Issue 38 (2nd September 2022)

• Record Type: Journal Article
• Authors: Wei, Ruijing; Hu, Lu; Wang, Lihua; Yan, Peng; Lin, Tao; Wang, Ning; Sun, Huaiqing; Zheng, Bisheng; Guo, Chaowan
• Is Part Of: RSC advances. Volume 12:Issue 38(2022)
• Page Start: 25025
• Page End: 25034
• Publication Date: 2022-09-02
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra03969a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A PEF-DES technique was used to extract flavonoids from Kapok with a TG-KF yield of 14.36 ± 0.35%; in vitro and in vivo data show that TG-KF has good stability, safety and antioxidative activity, suggesting potential as a natural anti-aging material in health and cosmetics. Abstract : In this study, deep eutectic solvents coupled with a pulsed electric field (PEF-DES) were first applied to the extraction of traditional Chinese medicine plants. This study uses the PEF-DES extraction technique to extract TG-KF (Kapok flavonoid solution extracted with DES-TG). PEF-DES is a simple, effective and environmentally-friendly technology and can be used in industrial-scale production. For the optimal extraction conditions of TG-KF, DES-TG was used as a solvent, the DES-TG concentration was 50%, the solid–liquid ratio was 1 : 30, the electric field intensity was 0.55 kV cm −1, the number of pulses was 100, and the yield of flavonoids was 14.36 ± 0.35%. TG-KF has very good stability and there is no precipitation or discoloration within 6 months. The results of chicken embryo experiments and human patch tests show that 10% TG-KF aqueous solution has no irritation. DPPH experiments show that TG-KF has excellent efficacy as an antioxidant. Overall, TG-KF is expected to become a potential antioxidant raw material.