Trilaurin triglyceride

The crystallization kinetics of bulk triglycerides and oil-in-water emulsions has been characterized by both NMR imaging and localized spectroscopy. The rate of lipid crystallization in an oil-in-water emulsion was affected by the addition of a second homopolymer (addition of trilaurin to trimyristin in this case). The addition of the second homopolymer of higher chain length was observed to slow the rate of crystallization [26]. 

Miller et al. (1991) demonstrated the effect of increased hydrolysis once an optimal amount of water has been added when they studied the inter-esterification of the triglycerides trilaurin and myristic acid. The observed rate of inter-esterification decreased to approximately one-third of its original rate when the water content was reduced from 1.75 (grams water per kilogram carbon dioxide) to zero. They also showed that the amount of hydrolysis increased about 10% as the water content increased. Knez et al. (1998) also found that the addition of small amounts of water increased the conversion rate when they studied the esterification of oleic acid with oleyl alcohol. 

Various lipids including triglycerides (e.g., trilaurin, trimyristin, tripalmitin and tristearin) and fatty acids were evaluated as carrier materials in sustained-release insulin implants. The drug/wax powder blend was compressed into a disc and implanted subcutaneously into Wistar rats. Monoglycerides tested eroded too fast and were not suitable. The triglycerides only sustained-the insulin release briefly. The best sustained-release properties were obtained with palmitic and stearic acids as the carrier materials. 

The quantity of bound flavouring substance also depends on the chain length of the fatty acids in the triglyceride, and on the presence of saturated or unsaturated fatty acids in it. Triglycerides with long chain fatty acids bind less ethanol and ethyl acetate than those with short chain fatty acids [6]. Triolein - a triglyceride that only contains the unsaturated oleic acid - binds more flavour than tripalmitin and trilaurin (both of which contain only saturated fatty acids) [6]. 

FIGURE 15.9 Rate of growth and dissolution Lc of a certain crystal face of a fl-crystal of trilaurin in triglyceride oil as a function of supersaturation (In / ). (After results by W. Skoda, M. van den Tempel. J. Crystal Growth 1 (1967) 207. 

The most detailed x-ray structure study of these materials to date is of trilaurin in the /3l form by Vand (18). This study was instrumental in clarifying the confused picture of the molecular arrangement of the triglycerides in the crystal lattice. Chapman s review (4) made a special effort towards clarifying the complex phase nomenclature which had surrounded the triglycerides with confusion and previously made it all but impossible to compare English and American work in the field. Chapman s phase designations are followed as closely as possible in this work. 

Parker and Bhaskar (1968) also studied the interaction between cholesterol and each of several triglycerides. Infrared spectra of mixed solutions of cholesterol and triacetin, tributyrin, or trilaurin gave evidence of the formation of a 1 1 hydrogen-... 

Laurie acid triglyceride. See Trilaurin Laurie alcohol. See Lauryl alcohol Laurie aldehyde... 

Trichloroethoxycarbonyl group, use as protective group, 294 Tricosanoic acid, 1,169,350 Tridecanoic acid, 1,350,351 Tridocosahexaenoin, 133 Triesters in waxes, 143 Triglycerides, see Triacylglycerols Trihydroxystearic acids, 21, 462 Trilaurin, 369, 372, 373, 375 Trimargarin, 368... 

Other biochemists presented evidence that there is a true gastric lipase that in its substrate specificity differs from both lingual and pancreatic lipase. Fritz Schon-heyder and Kirsten Volqvartz of Aarhus determined the substrate specificity of a lipase they found in gastric contents recovered from the stomachs of adult human subjects 25 minutes after the subjects had eaten a meal. Only lower triglycerides, they found, were split while the meal was in the stomach. In vitro the pH optimum of the enzyme depended upon the nature of the substrate, being 5.5 to 5.8 for tri-propein, tributyrin, and tricaproin but 7.0 to 7.9 for tricaprin, trilaurin, and tri-stearin. ... 

PRACTICE the skill 26.3 For each pair of triglycerides, identify the one that is expected to have the higher melting point. Consult Table 26.1 to determine which fatty acid residues are present in each triglyceride, (a) Trilaurin and trimyristin (b) Triarachidin and trilinolein... 

The technique of the intravenous administration of a fat has made possible a study of the rates of oxidation, by the intact animal, of various naturally occurring fats, and in particular, the rates at which the individual carbons of a given fatty acid are converted to CO. When fasted rats are injected intravenously with emulsions containing C Mabeled palmitic acids, significant amounts of the C appear in the expired CO2 as early as 30 minutes after injection, and 70% is converted to C 02 during 24 hours. On the other hand, with the shorter chain triglyceride, trilaurin-l-C, 71% of the administered C is converted to C 02 in 4.5 hours by normal or fasted rats. In that time, a labeled carbon of palmitic acids produces only about 50% of the administered C . Triglycerides of fatty acids with fewer than 14 carbon atoms are not deposited as... 

Laurie acid monoisopropanolamide. See Lauramide MIPA Laurie acid polydiethanolamide (2 1). See Lauramide DEA Laurie acid, sodium salt. See Sodium laurate Laurie acid superamide (1 1). See Lauramide DEA Laurie acid, triethanolamine salt. See TEA-laurate Laurie acid triglyceride. See Trilaurin Laurie alcohol. See Lauryl alcohol Laurie diethanolamide. See Lauramide DEA Laurie monoethanolamide. See Lauramide MEA... 

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