Simulated moving bed purification of flaxseed oil orbitides: unprecedented separation of cyclolinopeptides C and E.

Authors:
Denis P Okinyo-Owiti
Denis P Okinyo-Owiti
University of Saskatchewan
Canada
Peta-Gaye G Burnett
Peta-Gaye G Burnett
University of Saskatchewan
Canada

J Chromatogr B Analyt Technol Biomed Life Sci 2014 Aug 8;965:231-7. Epub 2014 Jul 8.

Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada; Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China.

The purification and enrichment of most natural products with potential pharmaceutical applications has been performed mainly employing conventional batch-mode chromatographic processes. There is a growing interest in use of simulated moving bed (SMB) chromatography for natural product enrichment as this method enables conservation of mobile phase, while increasing productivity of chromatography medium. SMB increases yield while decreasing cost. Cyclolinopeptides C ([1-9-NaC],[1-MetO]-CLB, 3) and E ([1-8-NaC],[1-MetO]-CLE, 8) were extracted as a mixture from flaxseed oil and then enriched using a three-zone simulated moving bed. The current research extends the SMB technology to enrichment of cyclolinopeptides (CLs), a group of biologically active hydrophobic cyclic peptides that occur in flaxseed oil. Of interest are [1-9-NaC],[1-MetO]-CLB (3) and [1-8-NaC],[1-MetO]-CLE (8) that provide synthetic scaffolds for modified CLs. The influence of flow rate (feed, desorbent, and extract) on the separation of [1-9-NaC],[1-MetO]-CLB (3) and [1-8-NaC],[1-MetO]-CLE (8) was investigated.

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http://dx.doi.org/10.1016/j.jchromb.2014.06.037DOI Listing

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August 2014
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