Rapid ultrasonic and microwave-assisted micellar extraction of zingiberone, shogaol and gingerols from gingers using biosurfactants

J of Separation Science

et al. 2019

Hydrosoluble trehalose lipid (a biosurfactant) was employed for the first time as a green extraction solution to extract the main antioxidant compounds (geniposidic acid, chlorogenic acid, caffeic acid, and rutin) from functional plant tea (Eucommia ulmoides leaves). Single‐factor tests and response surface methodology were employed to optimize the extraction conditions for ultrasound‐assisted micellar extraction combined with ultra‐high‐performance liquid chromatography in succession. A Box‐Behnken design (three‐level, three‐factorial) was used to determine the effects of extraction solvent concentration (1–5 mg/mL), extraction solvent volume (5–15 mL), and extraction time (20–40 min) at a uniform ultrasonic power and temperature. In consequence, the best analyte extraction yields could be attained when the trehalose lipid solution concentration was prepared at 3 mg/mL, the trehalose lipid solution volume was 10 mL and the extraction time was set to 35 min. In addition, the recoveries of the antioxidants from Eucommia ulmoides leaves analyzed by this analytical method ranged from 98.2 to 102%. These results indicated that biosurfactant‐enhanced ultrasound‐assisted micellar extraction coupled with a simple ultra‐high‐performance liquid chromatography method could be effectively applied in the extraction and analysis of antioxidants from Eucommia ulmoides leaf samples.

Section: Introductionmentioning

confidence: 99%

Biosurfactant trehalose lipid‐enhanced ultrasound‐assisted micellar extraction and determination of the main antioxidant compounds from functional plant tea

J of Separation Science

et al. 2019

“…e possible reason to explain this result was that the ultrasound waves generated cavitation and mechanical forces and improved the mass transfer by disrupting the cell walls. On the other hand, extreme high ultrasonic power and time could decompose target compounds [17,26].…”

Section: E Ect Of Ultrasonic Time On Yield Of Yellow Pigmentmentioning

confidence: 99%

“…Ultrasonicassisted extraction has been applied with extraction of phenolics and antioxidant compounds from rhizomes of Rheum moorcroftianum using response surface methodology, and the results indicate that the design to optimize the extraction of polyphenolic compounds is critical for precise quantification of antioxidant phenolics [16]. Ultrasonicassisted extraction could be applied to extract the target compounds in complex plant samples [17].…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic-Assisted Extraction of Natural Yellow Pigment from Physalis pubescens L. and Its Antioxidant Activities

Shi

Yang

et al. 2018

Journal of Chemistry

Physalis pubescens L. is rich in natural pigments but has not yet been fully utilized. Ultrasound-assisted extraction of yellow pigment from Physalis pubescens L. was investigated by response surface methodology in this study. Optimal parameters were ultrasonic power of 29.21%, ultrasonic time of 14.41 min, and ultrasonic interval time of 10.55 s. The yield was 0.193% under optimal parameters. FRAP, ABTS, and superoxide radical scavenging activity of the yellow pigment were 6.11 ± 0.22 mmol/g, 2.80 ± 0.27 mmol/g, and 57281.5 ± 2749.5 U/g, respectively. The results showed that the yield of yellow pigment could be improved by ultrasonic-assisted extraction and the yellow pigment extracted by ultrasound had antioxidant activity.

“…Owing to its rapid heating capability, MAE requires much shorter extraction time and higher extraction rate than many other conventional extraction techniques. Therefore, MAE has been accepted as a potential method for the extraction of bioactive compounds from various samples, such as extraction of pollutants from environmental samples, organophosphate esters from plastic samples, ginsenosides from ginseng, zingiberone, shogaol and gingerols from gingers and organic and inorganic iodines from kelp samples . The solvents used in these applications are organic solvents, surfactant aqueous solutions and ionic liquids which can interact with target analytes by hydrophobic interaction, hydrogen bond, electrostatic interaction and other intermolecular interactions which are physical processes.…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly microwave‐assisted reaction and extraction of bioactive compounds from hawthorn leaf

Peng

et al. 2019

Phytochemical Analysis

Self Cite

Introduction The main active components in hawthorn leaves possess various biological activities such as anti‐inflammatory, antioxidant, and hypolipidemic effects. Therefore, it is necessary to develop an effective and reliable extraction method to extract these active compounds from hawthorn leaves. Objective To establish a simple, rapid, and sensitive method for extraction and determination of polyphenolic compounds from hawthorn leaves. Methods In this study, a microwave‐assisted reaction and extraction (MARE) combined with ultra‐high‐performance liquid chromatography with ultraviolet detector method was established to extract and determine the polyphenolic compounds in hawthorn leaves. The solid reagent aqueous solutions were applied as extraction solvents, preventing the use of organic solvents. The target analytes were identified by quadrupole time‐of‐flight tandem mass spectrometry. Several experimental parameters that can significantly affect the extraction efficiency were evaluated and optimised. Results The optimal conditions were as follows: 0.1 g of sodium carbonate was used as solid reagent, the amount of sodium borate was set at 0.01 g, extraction time was 10 min, extraction temperature was set at 50°C, pH value was adjusted to 7. The validation experiments demonstrated that the method had high sensitivity with the limits of detection in the range 26.5–37.7 ng/mL. The average recoveries ranged from 80.22% to 93.27%. Conclusion In this work, the proposed MARE method was successfully applied to extract and determine polyphenolic compounds in hawthorn leaf samples. Compared with other reported methods, the present method was faster, greener, and more sensitive.