Plant Polymer Research Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
Agricultural Research Service United States Department of Agriculture
Search
  Advanced Search
 
Programs and Projects
Subjects of Investigation
 

Title: A COCOA BUTTER SUBSTITUTE VIA DSC INDICES OF TRANSESTERIFIED WAX ESTERS?

Authors
item Sessa, David
item Nelsen, Terry
item Kleiman, Robert
item Arquette, James - INTL FLORA TECHNOL

Submitted to: North American Thermal Analysis Society Meeting
Publication Type: Proceedings
Publication Acceptance Date: December 20, 1995
Publication Date: N/A

Technical Abstract: A series of transesterified wax ester blends consisting of native and completely hydrogenated jojoba waxes were subjected to several heat/cool cycles. When evaluated by DSC, three enthalpic events were observed which represented diene, monoene and saturated wax ester composition. Chemometric indices were constructed from heats-of-fusion, heats-of-crystallization and crystallization onset temperatures to estimate the % saturation in these transesterified blends. From these indices and also from regression analyses of the individual events, we could predict the degree of saturation needed to best mimic the thermal properties of cocoa butter. Enthalpies and crystallization onset temperatures of transesterified blends with 5 to 50% saturation were determined. The blend with 40% saturation most closely resembled cocoa butter.

   
 
 
Last Modified: 05/24/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House