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Article

Alternate Ultrasound/Microwave Digestion for Deep Eutectic Hydro-distillation Extraction of Essential Oil and Polysaccharide from Schisandra chinensis (Turcz.) Baill

by
Jun-Han Li
,
Wei Li
,
Sha Luo
,
Chun-Hui Ma
* and
Shou-Xin Liu
*
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
*
Authors to whom correspondence should be addressed.
Molecules 2019, 24(7), 1288; https://doi.org/10.3390/molecules24071288
Submission received: 4 March 2019 / Revised: 28 March 2019 / Accepted: 1 April 2019 / Published: 2 April 2019
(This article belongs to the Special Issue Green Extraction of Natural Products)
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Abstract

An alternating synergetic ultrasound/microwave method was applied to the simultaneous extraction of essential oils and polysaccharides with deep eutectic solvent (DES) from Schisandra chinensis. Under the optimal conditions, extract in the selected choline chloride-ethylene glycol 1:3 solvent yielded 12.2 mL/kg and 8.56 g/100g of essential oils and polysaccharides, respectively. The free radical scavenging and immunological activities of the polysaccharides and the antioxidant activity of the essential oils have also been investigated. The lymphocyte proliferation capacity was substantially improved by adding concanavalin A or lipopolysaccharides to polysaccharides (0.20 mg/mL). The IC50 values of the essential oils for scavenging DPPH obtained by hydro-distillation and DES ultrasound/microwave-assisted hydro-distillation (DES UMHD) were 52.34 µg/mL and 29.82 µg/mL, respectively. The essential oil obtained by DES UMHD had the highest reducing power (856.05 (TE)/g) at 150 g/mL and had the strongest inhibitory capacity (SC% = 18.12%). S. chinensis has the potential to be developed as a natural antioxidant.
Keywords: deep eutectic solvent; ultrasound/microwave digestion; Schisandra chinensis (Turcz.) Baill; essential oil; polysaccharide deep eutectic solvent; ultrasound/microwave digestion; Schisandra chinensis (Turcz.) Baill; essential oil; polysaccharide
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MDPI and ACS Style

Li, J.-H.; Li, W.; Luo, S.; Ma, C.-H.; Liu, S.-X. Alternate Ultrasound/Microwave Digestion for Deep Eutectic Hydro-distillation Extraction of Essential Oil and Polysaccharide from Schisandra chinensis (Turcz.) Baill. Molecules 2019, 24, 1288. https://doi.org/10.3390/molecules24071288

AMA Style

Li J-H, Li W, Luo S, Ma C-H, Liu S-X. Alternate Ultrasound/Microwave Digestion for Deep Eutectic Hydro-distillation Extraction of Essential Oil and Polysaccharide from Schisandra chinensis (Turcz.) Baill. Molecules. 2019; 24(7):1288. https://doi.org/10.3390/molecules24071288

Chicago/Turabian Style

Li, Jun-Han, Wei Li, Sha Luo, Chun-Hui Ma, and Shou-Xin Liu. 2019. "Alternate Ultrasound/Microwave Digestion for Deep Eutectic Hydro-distillation Extraction of Essential Oil and Polysaccharide from Schisandra chinensis (Turcz.) Baill" Molecules 24, no. 7: 1288. https://doi.org/10.3390/molecules24071288

APA Style

Li, J.-H., Li, W., Luo, S., Ma, C.-H., & Liu, S.-X. (2019). Alternate Ultrasound/Microwave Digestion for Deep Eutectic Hydro-distillation Extraction of Essential Oil and Polysaccharide from Schisandra chinensis (Turcz.) Baill. Molecules, 24(7), 1288. https://doi.org/10.3390/molecules24071288

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