ORIGINAL RESEARCH
Environmentally Friendly Extraction of Bioactive Compounds from Mentha arvensis Using Deep Eutectic Solvent as Green Extraction Media
 
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1
Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
 
2
Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
 
 
Submission date: 2019-10-09
 
 
Final revision date: 2019-11-08
 
 
Acceptance date: 2019-11-14
 
 
Online publication date: 2020-04-15
 
 
Publication date: 2020-06-08
 
 
Corresponding author
Muhammad Zahid   

University of Agriculture Faisalabad, Department of Chemistry, University of Agriculture, 38040, Faisalabad, Pakistan
 
 
Pol. J. Environ. Stud. 2020;29(5):3749-3757
 
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ABSTRACT
In the present study, deep eutectic solvent (DES) was prepared by combining choline chloride and glycerol and is used as a green alternative extraction media of detrimental organic solvents. The DES and aqueous methanol were used for the ultrasound-assisted extraction (UAE) of bioactive compounds from Mentha arvensis, which have remarkable medicinal values. The optimization of extraction parameters during phytochemical evaluation was done by response surface methodology. The extraction yield obtained with DES was significantly higher than that achieved using aqueous methanol. The total phenolic contents (TPCs) 117 mg GAE/g, total flavonoids contents (TFCs), 80 mg QE/g and 2, 2-diphenyl-1- picrylhydrazyl (DPPH) radical inhibition 94% was obtained using DES. The antimicrobial activities of extracts were evaluated against S. aureus, E. coli (bacterial strains), F. solani and A. niger (fungal strains) by well diffusion method. The extracts were characterized using LC-MS and showed that chrysin, p-coumaric acid, naringenin, scopoletin, phenylpyruvic acid, pinocembrin, hesperidin, carnosic acid and caffeic acid were the main bioactive components of Mentha arvensis. The DES has shown considerable high extraction yield, which ultimately relates to the higher TPCs, TFCs and DPPH assay compared to aqueous methanol. The DES with extensive hydrogen bonding is of vital importance in the perspective of the environment than traditionally used solvents.
eISSN:2083-5906
ISSN:1230-1485
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