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Bioactivity-guided systematic extraction and purification supported by multitechniques for sugarcane flavonoids and anthocyanins

Paper ID Volume ID Publish Year Pages File Format Full-Text
18948 43037 2015 8 PDF Available
Title
Bioactivity-guided systematic extraction and purification supported by multitechniques for sugarcane flavonoids and anthocyanins
Abstract

•Ionic liquids solvents could extract flavonoids and anthocyanins simultaneously.•Sugarcane tip was found with the highest antioxidant bioactivity.•D141 macroporous resin offered the best adsorption and desorption performance.•Pseudo-first-order kinetics model was favorable for illustrating adsorption process.•Equilibrium experimental data were well-fitted to the Langmuir isotherms.

The application of ionic liquids (ILs) and macroporous resins for systematic separation of flavonoids and anthocyanins from Chinese sugarcane (Saccharum sinensis Roxb.) has been studied. The results show that the 0.8 M 1-butyl-3-methylimidazolium hexafluorophosphate aqueous solution ([C4MIM] [PF6]–water) has the highest yield among all the ILs and sugarcane tip is found with highest antioxidant bioactivity. D141 resin has the best adsorption and desorption performance for flavonoids and anthocyanins. And the pseudo-first-order kinetics model is the most favorable tool for illustrating the whole adsorption process. Furthermore, the equilibrium experimental data are well-fitted to the Langmuir isotherms. The values of ΔH, ΔG and ΔS suggest that the adsorption process is exothermic and the main driving force is hydrophobic interaction. Dynamic adsorption and desorption experiments prove that the flavonoids and anthocyanins can be completely eluted with the ethanol–water (70:30, v/v) of 5 BV and lower flow rate is more benefit to desorption process.

Keywords
Flavonoids and anthocyanins; Sugarcane (Saccharum sinensis Roxb.); Ionic liquid; Macroporous resins; Adsorption and desorption; Antioxidant activity
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Bioactivity-guided systematic extraction and purification supported by multitechniques for sugarcane flavonoids and anthocyanins
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 94, April 2015, Pages 547–554
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us