NDLI: Melting Points and Viscosities of Fatty Acid Esters that are Potential Targets for Engineered Oilseed

Content Provider	Springer Nature Link
Author	Yao, Linxing Hammond, Earl Wang, Tong
Copyright Year	2007
Abstract	Our previous isolation of branched-chain fatty acid (BCFA) methyl esters from lanolin was improved and scaled up. Also, oleate esters of isopropanol, oleyl alcohol and normal alcohols of 1–12 carbons chain lengths were prepared. Esters were made by interesterification with sodium alcoholates and by esterification with Candida antarctica lipase. It proved easier to obtain pure esters by the enzymatic synthesis. Melting points and viscosities over the range of 0–70 °C were determined in order to better identify potential lubricant targets that might be produced by genetically modified oilseed crops. Isopropyl and butyl oleate have melting points of −33 and −32 °C, respectively and viscosities that range from ~17 cp (0 °C) to ~2.5 cp (70 °C). They should have suitable stability for lubricants. BCFA esters had viscosities similar to their straight chain analogs. Viscosities increased with alcohol chain length and decreased with temperature. The dependence of viscosity on temperature was fit with an equation based on Erying’s rate equation. Some esters with branched acid or branched alcohol moieties, and some oleate esters might be utilized as biolubricants or biofuels on the basis of their melting points and viscosities.
Starting Page	77
Ending Page	82
Page Count	6
File Format	PDF
ISSN	0003021X
Journal	Journal of the American Oil Chemists' Society
Volume Number	85
Issue Number	1
e-ISSN	15589331
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-11-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Branched chain fatty esters Melting point Oleate esters Viscosity Agriculture Biomaterials Biotechnology Chemistry/Food Science Analytical Chemistry Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Chemical Engineering

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