Glycerol triolein

Two assays have been developed for measuring the relative concentration of lipoprotein lipase activator in milk. Anderson (1979) developed an immunoassay and Super et al (1976) used [23H]glycerol triolein and measured the liberated [23H]glycerol. 

Synonyms Glycerin trioleate Glycerol triolein Source Chen, C.-C. Chang, C.-M. J. Yang, P.-W. Fluid Phase Equil. (2000), 175(1 -2), 107-115. 

Synonyms Glycerin trioleate Glycerol triolein Source Chrastil, J. J. Phys. Chem. (1982), 86(15), 3016-3021. 

Synonyms Glycerin trioleate Glycerol triolein Source Nilsson, W. B. Gauglitz, E. J. Jr. Hudson, J. K.J. Am. Oil Chem. 

Synonyms Glycerin trioleate Glycerol triolein Source Ribeiro, M. A. Bernardo-Gil, M. G. J. Chem. Eng. Data (1995), 40(6), 1188-1192. 

CAS 122-32-7 67701-30-8 EINECS/ELINCS 204-534-7 266-9484 Synonyms 2,3-Bis [(9E)-9-octadecenoyloxy] propyl (9E)-9-octadecenoate Glycerol trioleate Glyceryl trioleate 9-Octadecenoic acid, 1,2,3-propanetriyl ester 9-Octadecenoic acid (Z)-, 1,2,3-propanetriyl ester Olein 1,2,3-Propanetriyl tri-((E)-9-octadecenoate) 1,2,3-Tri (cis-9-octadecenoyl) glycerol Triolein glyceryl trioleate Trioleoylglycerol Classification Triglyceride... 

Natural fats are glycerol esters of fatty acids known as triglycerides. Unsaturated fats are generally liquids (oils) at room temperature, while triglycerides rich in saturated fatty acids are generally solids. View tristearin and triolein. Which one of these is saturated and which is unsaturated Are die double bonds in the unsaturated fat cis or transl... 

C] and 6% Cj g) was used as the anionic surfactant. Oleic Acid (Extra pure reagent, Kanto Chemical Co., Tokyo, Japan), Triolein (glycerol trioleate (Cj 2H33C00)3C3H5, Technical, BDH Chemicals, England) and n-decane (E. Merck, G.C., 95%) were used as oil. Sodium chloride (E. Merck, purity 100 0.05%) was used as electrolyte. 

This structure shows a triglyceride with three identical saturated fatty acids. Tripalmitin, in which all fatty acids are palmitic acid (n = 14), provides one example of a fat. Triolein is an oil containing only oleic acid moieties esterified to glycerol. In contrast to these two examples, it is by no means necessary that the three fatty acid groups be derived from only one fatty acid. For example, we might have a triglyceride that contains one saturated fatty acid, say palmitic acid, one monounsaturated fatty acid, say oleic acid, and one polyunsaturated fatty acid, perhaps arachidonic acid. 

Fig. 3 Hydrolysis and esterification by modified lipase (1mg) at 37°C. (a) was obtained at triolein (3mL) and (7mL). (b) was obtained at oleic acid (0.2mL) and glycerol (5mL). Conversion was defined as the decrement of oleic acid concentration.

Trioleine Methanol Total Methyl ester Glycerol Total... 

Bohenin (BOB) is the name given to glycerol 1,3-behenate 2-oleate, which inhibits fat bloom when added to chocolate. It is produced in Japan by enzymic interesterification of triolein and behenic (22 0) acid or ester in the presence of a 1,3 stereospecific lipase. 

Hydrolysis has traditionally been used for the production of fatty acids and glycerols, which find widespread apphcation in soaps and detergents, cosmetics, pharmaceuticals, and food products (174). Hydrolysis of soybean (181), canola (147, 208, 209), sunflower (149, 181, 210), tuna (150), and blackcurrant oils (145), tri-palmitin (146), triolein (211), and ethyl stearate (202) in SCCO2 has been reported. These investigations employed a variety of lipases, including immobilized lipase from porcine pancreas (211), Novozyme 435 (146, 181), Lipozyme (147, 150, 208, 209), non-immobilized Candida rugosa (150, 181), Lipase OL (150), and Lipolase lOOT (149, 181, 210). The effects of water content, enzyme load, operating conditions (temperature and pressure), pH, enzyme/substrate ratio, oil/buffer ratio, and CO2 flow rate (for continuous reactions) on the hydrolysis reaction were reported. 

The equation assumes an average molecular weight of 885 g/mole (triolein) for plasma triglycerides. In addition, because of the preliminary extraction and adsorption steps, the CDC reference method measures only the glycerides, and does not include free glycerol, the so-called triglyceride blank. 

There still remains the question, Which test should be used when the assessment of fat malabsorption really is indicated Box 48-9 indicates the range of possible tests. My district hospital laboratory, serving a population of about 500,000, offers fecal microscopy and the C-glycerol trioleate ( C-triolein) fat absorption test. ... 

A lipase has been used to convert solid triolein (glycerol trioleate) to the monooleate by treatment with glycerol at 8°C.75 Other lipases have been used in the hydrolysis and transesterification of oils, as well as in the esterification of fatty acids without solvents.76 Peptides can be produced from eutectic mixtures of amino acid derivatives with the addition of a small amount of solvent.77 Immobilized sub-tilisin and thermolysin were used with 19-24% water or an alcohol to produce polypeptides. Subtilisin on celite (a di-atomaceous earth) was used to convert a mixture of L-phenylalanine ethyl ester and L-leucinamide containing 10% triethyleneglycol dimethyl ether to L-phenylala-nineleucinamide in 83% yield. Addition of 30% 2 1 ethanol/water reduced the time needed from 40 to 4 h. The enzyme could be used three more times. These reaction mixtures contained 0.13-0.75 g peptide per g reaction mixture compared with 0.015-0.035 when the reaction was... 

The methatesis of vegetable oils with ethylene is a very interesting way to obtain new unsaturated structures to be transformed into new polyols via the epoxidation - alcoholysis route. Trioleine was used as a model compound (the triester of glycerol with oleic acid), the methatesis reaction with ethylene being catalysed by a special ruthenium catalyst [72]. The resulting triglyceride, with terminal double bonds, after removal of the 1-decene formed, is transformed into polyols by epoxidation, followed by alcoholysis with methanol (reactions 17.27 and 17.28). 

Such interchanges include the molecular rearrangement of completely esteri-fied esters of glycerol and mixtures of fatty acids, such as vegetable and animal oils—e.g., cottonseed oil or tallow the ester-ester exchange between aromatic carboxylic acid esters of a monohydric alcohol, such as o-CeH (C02CH3)2, and aliphatic carboxylic acid esters of a polyhydric alcohol, such as triacetin or between monohydric alcohol esters of aliphatic carboxylic acids—e.g., ethyl stearate —and fatty acid esters of polyhydric alcohol—e.g., tributyrin or triolein. 

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