Next Article in Journal
Synthesis of Bis(1,2,3-Triazole) Functionalized Quinoline-2,4-Diones
Previous Article in Journal
Walnut Protein Hydrolysates Play a Protective Role on Neurotoxicity Induced by d-Galactose and Aluminum Chloride in Mice
Previous Article in Special Issue
Ionic Liquids: Efficient Media for the Lipase-Catalyzed Michael Addition
Article Menu

Export Article

Open AccessFeature PaperArticle
Molecules 2018, 23(9), 2309; https://doi.org/10.3390/molecules23092309

Application of Ionic Liquid-Based Ultrasonic-Assisted Extraction of Flavonoids from Bamboo Leaves

1
Zhejiang Academy of Forestry, Hangzhou 310023, China
2
School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
3
Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces, Hangzhou 310023, China
4
Zhejiang Province Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacuring, Hangzhou 310023, China
*
Authors to whom correspondence should be addressed.
Received: 10 August 2018 / Revised: 4 September 2018 / Accepted: 6 September 2018 / Published: 10 September 2018
(This article belongs to the Special Issue Green and Sustainable Solvents)
Full-Text   |   PDF [5691 KB, uploaded 10 September 2018]   |  

Abstract

Ionic liquids (ILs), known as environmentally benign “green” solvents, were developed as an optimal solvent for the green extraction and separation field. In this paper, an ionic liquid-based ultrasonic-assisted extraction (IL-UAE) of flavonoids (FVs) from bamboo leaves of Phyllostachys heterocycla was developed for the first time. First, 1-butyl-3-methylimidazolium bromide ([Bmim] Br), with the best extraction efficiency, was selected from fifteen ionic liquids with diverse structure, like carbon chains or anions. Then, the influencing parameters of ionic liquid (IL) concentration, liquid-solid ratio, ultrasonic time, and ultrasonic power, were investigated by single factor tests, and further optimized using response surface methodology (RSM). In the optimization experiment, the best conditions were 1.5 mol/L [BMIM]Br aqueous solution, liquid-solid ratio 41 mL/g, ultrasonic time 90 min, and ultrasonic power 300 W. Furthermore, the microstructures of bamboo leaves and the recovery of FVs and [BMIM]Br were also studied. Therefore, this simple, green and effective IL-UAE method has potentiality for the extraction of FVs from bamboo leaves for the large-scale operations. View Full-Text
Keywords: Phyllostachys heterocycle; bamboo leaves; ionic liquid; ultrasonic-assisted extraction; flavonoids Phyllostachys heterocycle; bamboo leaves; ionic liquid; ultrasonic-assisted extraction; flavonoids
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, L.; Bai, M.; Qin, Y.; Liu, B.; Wang, Y.; Zhou, Y. Application of Ionic Liquid-Based Ultrasonic-Assisted Extraction of Flavonoids from Bamboo Leaves. Molecules 2018, 23, 2309.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top