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Shedding light on lipase stability in natural deep eutectic solvents

Elgharbawy, Amal Ahmad and Hayyan, Adeeb and Hayyan, Maan and Rashid, Shahidah Nusailah and Nor, M.R.M. and Zulkifli, M.Y. and Alias, Yatimah and Mirghani, Mohamed Elwathig Saeed (2018) Shedding light on lipase stability in natural deep eutectic solvents. Chemical and Biochemical Engineering Quarterly, 32 (3). pp. 359-370. ISSN 0352-9568 E-ISSN 1846-5153

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This study presents the potential role of natural deep eutectic solvents (NADESs) in a lipase-catalyzed hydrolysis reaction as both a co-solvent in an aqueous solution and as a main solvent. Ammonium salts such as choline chloride (ChCl) were paired with different hydrogen bond donors such as glycerol and malonic acid and sugars (glucose, fructose and sucrose). The hydrolysis of p-nitrophenyl palmitate by six different lipases: lipase from porcine pancreas (PR), lipase from Candida rugosa (CR), Amano lipase PS, from Burkholderia cepacia (AM), lipase from Rhizopus niveus (RN), lipase acrylic resin from Candida antartica (ARC), lipase B Candida antartica immobilized on Immobead 150, recombinant from Aspergillus oryzae (CALB), were tested in five NADESs. The results showed that NADES3 prepared from ChCl/sucrose was the most promising solvent as it enhanced the activities of both CALB and lipase from porcine pancreas to 355 % and 345 %. The kinetics investigation confirmed the higher catalytic efficiency (kcat/Km) of lipases in the 40 % of (NADES3) and compared with the aqueous form. The trend achieved by NADES may be a promising approach for applications and further perspectives as genuinely green industrial solvents.

Item Type: Article (Journal)
Additional Information: 4971/67015
Uncontrolled Keywords: Biotransformation; Biotechnology; Ionic liquids; Choline chloride; P-nitrophenyl palmitate, Lipase B candida antartica
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr AMAL ELGHARBAWY
Date Deposited: 24 Oct 2018 12:57
Last Modified: 14 Mar 2019 11:41
URI: http://irep.iium.edu.my/id/eprint/67015

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