Triglyceride (TG) + R'OH [??] Diglyceride
(DG) + [R'COOR.sub.1] (1)
and monoglycerides are the intermediates in this process.
where C is the concentration of components such as Jatropha curcas triglyceride (JTG), Jatropha curcas diglyceride
(JDG), Jatropha curcas monoglyceride (JMG), glycerol (GL), Jatropha curcas methyl ester (JME), and methanol (MeOH) and k is the effective rate constant of each stepwise reaction.
The aim of the study is to estimate the influence of mono- and diglycerides
on tribological properties of rapeseed oil.
Methyl esters of fatty acid, 1.3 diglyceride
, 1.2 diglyceride
, 1-monoglyceride, 2-monoglyceride and the whole oil were prepared with boron triflouride methanol reagent according to the method described by Morrison and Smith .
The specific JME fuel properties that include density at 15[degrees]C, calorific value, flash point, cetane value, specific gravity at 15[degrees]C, viscosity at 40[degrees]C, water content, ash content, acid value, monoglyceride, diglyceride
, triglyceride, free glycerine, total ester content, and total glycerine contents were evaluated with a fuel property testing equipment built on the ASTM standards (D2624, D3828) and European standards (EN 14105) such as calorimeter, fuel test kit, and gas chromatograph (Shimadzu-GC-2010 Plus) fitted with a flame ionization detector FID2010 Plus and a capillary column of size 30 m x 0.25 mm x 0.25 [micro]m.
The committed enzyme catalyzing the first and rate-limiting step of TG hydrolysis is adipose triglyceride lipase (ATGL), which hydrolyzes TG to generate diglyceride
(DG) and free fatty acids [9, 10].
In this article, the molar ratio of ethanolamine to soybean oil was adjusted to about 1:1 in the aminolysis reaction so that one soybean oil molecule could be converted into one fatty ethanolamide and one diglyceride
, both of which have only one hydroxyl group.
determination of total monoglyceride, total diglyceride
, total triglyceride, and free and total glycerin in b-100 biodiesel methyl esters by gas chromatography.
The baking ingredients were as follows; whole wheat flour (Shams Azar Co.), brown rice flour (Aryana Co.), the emulsifiers monoglyceride and diglyceride
(Distld), baking yeast (Iran Molass Co.), salt (Hedyeh Co.) and polyethylene bags.
performed a study for microemulsion area in phase diagram and concluded that the mixture of lipids (medium chain fatty acids) composed of monoglyceride: diglyceride
or triglyceride in 1: 1 ratio produced expanded microemulsion phase and reduced gel phase which is suitable for oral administration .