Document Detail

Identification of acylglycerols containing dihydroxy fatty acids in castor oil by mass spectrometry.
MedLine Citation:
PMID:  19048323     Owner:  NLM     Status:  MEDLINE    
Ricinoleate, a monohydroxy fatty acid, in castor oil has many industrial uses. Dihydroxy fatty acids can also be used in industry. The C(18) HPLC fractions of castor oil were analyzed by electrospray ionization mass spectrometry of lithium adducts to identify the acylglycerols containing dihydroxy fatty acids and the dihydroxy fatty acids. Four diacylglycerols identified were diOH18:1-diOH18:1, diOH18:2-OH18:1, diOH18:1-OH18:1 and diOH18:0-OH18:1. Eight triacylglycerols identified were diOH18:1-diOH18:1-diOH18:1, diOH18:1-diOH18:1-diOH18:0, diOH18:2-diOH18:1-OH18:1, diOH18:1-diOH18:1-OH18:1, diOH18:1-diOH18:0-OH18:1, diOH18:2-OH18:1-OH18:1, diOH18:1-OH18:1-OH18:1 and diOH18:0-OH18:1-OH18:1. The locations of fatty acids on the glycerol backbone were not determined. The structures of these three newly identified dihydroxy fatty acids were proposed as 11,12-dihydroxy-9-octadecenoic acid, 11,12-dihydroxy-9,13-octadecadienoic acid and 11,12-dihydroxyoctadecanoic acid. These individual acylglycerols were at the levels of about 0.5% or less in castor oil and can be isolated from castor oil or overproduced in a transgenic oil seed plant for future industrial uses.
Jiann-Tsyh Lin; Arthur Arcinas; Leslie A Harden
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Publication Detail:
Type:  Journal Article     Date:  2008-12-02
Journal Detail:
Title:  Lipids     Volume:  44     ISSN:  1558-9307     ISO Abbreviation:  Lipids     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-03-26     Completed Date:  2009-05-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  United States    
Other Details:
Languages:  eng     Pagination:  359-65     Citation Subset:  IM    
Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan Street, Albany, CA 94710, USA.
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MeSH Terms
Castor Oil / chemistry*
Chromatography, High Pressure Liquid
Fatty Acids / analysis*
Glycerides / chemistry*
Spectrometry, Mass, Electrospray Ionization / methods*
Reg. No./Substance:
0/Fatty Acids; 0/Glycerides; 8001-79-4/Castor Oil

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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