Synthesis of Methyl Succinate by Natural-Fibre Immobilized Lipase of Streptomyces sp. STL-D8

ISSN: 2211-551X (Online)
ISSN: 2211-5501 (Print)

Volume 6, 4 Issues, 2017

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Current Biotechnology

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Pabulo Henrique Rampelotto
Center of Biotechnology and PPGBCM
Federal University of Rio Grande do Sul
Porto Alegre, RS

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Synthesis of Methyl Succinate by Natural-Fibre Immobilized Lipase of Streptomyces sp. STL-D8

Current Biotechnology, 3(2): 152-156.

Author(s): Ramesh Kumar, Ashok Kumar and Shamsher S Kanwar.

Affiliation: Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla-171 005, India.


A purified thermo-tolerant lipase of Streptomyces STL-D8 was immobilized onto the natural fibres namely ‘Bombax’. Hydrolytic activity of this fibre-bound lipase was determined for hydrolysis of p-NPP in a 0.05 M Tris buffer (pH 8.5) at 55°C. This fibre-bound lipase was used to synthesize methyl succinate using methanol and succinic acid as reactants in DMSO at 55°C under shaking. Although a low yield of methyl succinate was observed in reaction mixture at 16 h (14.3 mM) yet the yield of methyl succinate was improved by optimizing molar ratio of reactants to 75 mM: 100 mM (succinic acid: methanol) in DMSO. Molecular sieves added to the reaction system at a concentration of 30 mg/2 mL increased the synthesis of methyl succinate from 30.0 mM to 31.4 mM. The volumetric scale up of the reaction system to 10 and 50 mL produced more or less a similar yield (29.1 mM to 27.9 mM) of methyl succinate after 16 h of reaction. Methyl succinate is a therapeutic molecule that has insulin sensitizing property comparable to that of glucose.


Streptomyces sp. STL-D8, lipase, natural fibres, methyl succinate, immobilized biocatalyst, DMSO.

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Article Details

Volume: 3
Issue Number: 2
First Page: 152
Last Page: 156
Page Count: 5
DOI: 10.2174/2211550102666140107232547
Price: $58

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