Abstract
The purpose of this investigation was to develop conditions for producing 2-monoricinoleoyl DAG. We used lipase-catalyzed hydrolysis of triricinolein to obtain 2-monoricinolein and thereafter synthesized 1,2(2,3)-diricinolein through esterification of 2-monoricinolein, using ricinoleic acid as the acyl donor. Five different 1,3-specific immobilized lipases were tested for the initial methanolysis reaction: Candida antarctica type B, Rhizomucor miehei, Rhizopus oryzae (ROL), Thermomyces lanuginosus, and Aspergillus niger. For the second esterification reaction, we investigated these five lipases plus Pseudomonas cepacia, Penicillium roquefortii, Candida rugosa, and Pseudomonas fluorescence. Toluene and diisopropyl ether (DIPE) were examined as reaction media at a water activity of 0.11. ROL in DIPE gave the highest yield of 2-monoricinolein from triricinolein, 78% after 3 h of reaction. The isolated 2-monoricinolein was esterified with ricinoleic acid for synthesis of 1,2(2,3)-diricinolein. ROL in DIPE gave the highest yield of 1,2(2,3)-diricinolein, 58% after 1 h of reaction, and NMR analysis showed that the purity was 97.2%. This methodology can used for synthesizing radiolabeled 1,2(2,3)-diricinolein to study lipid biosynthesis in castor and other oilseeds.
Similar content being viewed by others
Abbreviations
- ANL:
-
Aspergillus niger lipase
- CALB:
-
Candida antarctica lipase type B
- CRL:
-
Candida rugosa lipase
- DGAT:
-
diacylglycerol acyltransferase
- DIPE:
-
diisopropyl ether
- MTBE:
-
methyl tert-butyl ether
- PCL:
-
Pseudomonas cepacia lipase
- PFL:
-
Pseudomonas fluororescence lipase
- PRL:
-
Penicillium roquefortii lipase
- RcDGAT:
-
the cDNA for DGAT in castor
- RML:
-
Rhizomucor michei lipase
- ROL:
-
Rhizopus oryzae lipase
- TLL:
-
Thermomyces lanuginosus lipase
References
Lin, J.-T., Turner, C., Liao, L.P., and McKeon, T.A. (2003) Identification and Quantification of the Molecular Species of Acylglycerols in Castor Oil by HPLC Using ELSD, J. Liq. Chrom. Rel. Technol. 26, 759–766.
Caupin, H.-J. (1997) Products from Castor Oil—Past, Present, and Future, in Lipid Technologies and Applications, (Gunstone, F. D., and Padley, F. B., eds.), pp. 787–795. Marcel Dekker, New York.
Lord, J.M., Roberts, L.M., and Robertus, J.D. (1994) Ricin: Structure, Mode of Action, and Some Current Applications, FASEB J. 8, 201–208.
He, X.H., Turner C, Chen, G.Q., Lin, J.T., and McKeon, T.A. (2004) Cloning and Characterization of a cDNA Encoding Diacylglycerol Acyltransferase from Castor Bean, Lipids 39, 311–318.
Turner, C., He, X., Nguyen, T., Lin, J.-T., Wong, R., Lundin, R., Harden, L., and McKeon, T. (2003) Lipase-Catalyzed Methanolysis of Triricinolein in Organic Solvent to Produce 1,2(2,3)-Diricinolein, Lipids 38, 1197–1206.
Rendon, X., Lopez-Munguia, A., and Castillo, E. (2001) Solvent Engineering Applied to Lipase-Catalyzed Glycerolysis of Triolein, J. Am. Oil. Chem. Soc. 78, 1061–1066.
Kosugi, Y., and Azuma, N. (1994) Synthesis of Triacylglycerol from Polyunsaturated Fatty-Acid by Immobilized Lipase, J. Am. Oil Chem. Soc., 71, 1397–1403.
Hayes, D.G. (1996) The Catalytic Activity of Lipases Toward Hydroxy Fatty Acids—A Review, J. Am. Oil Chem. Soc. 73, 543–549.
Gitlesen, T., Bauer, M., and Adlercreutz, P. (1997) Adsorption of Lipase on Polypropylene Powder, Biochim. Biophys. Acta 1345, 188–196.
Halling, P.J. (1992) Salt Hydrates for Water Activity Control with Biocatalysis in Organic Media, Biotechnol. Tech. 6, 271–276.
Bornscheuer, U.T., and Kazlauskas, R. J. (1999) Hydrolases in Organic Synthesis: Regio- and Stereoselective Biotransformations, Wiley-VCH, Weinheim.
Huang, K.-H., and Akoh, C.C. (1996) Enzymatic Synthesis of Structured Lipids: Transesterification of Triolein and Caprylic Acid Ethyl Ester, J. Am. Oil Chem. Soc. 73, 245–250.
Millqvist, A., Adlercreutz, P., and Mattiasson, B. (1994) Lipase-Catalyzed Alcoholysis of Triglycerides for the Preparation of 2-Monoglycerides. Enzyme Microb. Technol. 16, 1042–1047.
Schmid, U., Bornscheuer, U.T., Soumanou, M.M., McNeill, G.P., and Schmid, R.D. (1999) Highly Selective Synthesis of 1,3-Oleoyl-2-palmitoyl-glycerol by Lipase Catalysis, Biotechnol. Bioeng. 64, 678–684.
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Turner, C., Wani, S., Wong, R. et al. Lipase-catalyzed esterification of 2-monoricinolein for 1,2(2,3)-diricinolein synthesis. Lipids 41, 77–83 (2006). https://doi.org/10.1007/s11745-006-5073-y
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11745-006-5073-y