Monoglycerides acetic acid esters

Organic acid esters of monoglycerides Acetic acid esters... 

Chem. Descrip. Monoglyceride acetic acid ester CAS 68990-55-6... 

Figure 34 Monoglyceride derivatives, (a) Ethoxylated monostearate (b) succinic acid ester of monostearate (c) diacetyl tartaric acid of monostearate (d) citric acid ester of monostearate (e) lactic acid ester of monopalmitate (f) acetic acid ester of monostearate.

Chem. Descrip. Acetic acid ester of monoglyceride... 

Canola oil Acetic acid ester of monoglycerides Isopropanol 9... 

Esters of monoglycerides with organic acids such as acetic acid, lactic acid, diacetyltartaric acid, succinic acid and citric acid are widely used as food emulsifiers. The esters are produced in standard batch reactors normally by reacting monoglycerides with the organic acid or its anhydride. A direct esterification of fatty acids, glycerol and the organic acid is also possible for some products. 

Figure 3. Fractionation of plasma lipids by thin-layer chromatography (Wagener 1965) solvent = petroleum ether-diethyl ether-acetic acid 85 15 1 by volume, detection = ultraviolet light, CHE = cholesterol esters, ME = methyl esters, TO = triglycerides, FFA = free fatty acids, FCH = free cholesterol, DO = diglycerides, MG + PL = monoglycerides and phospholipids...

Acetic acid, 2-methoxypropyl ester. See 2-Methoxy-1-propanol acetate Acetic acid, monoglyceride. See Glyceryl acetate Acetic acid, letinyl ester. See Retinyl acetate Acetic acid sodium saH anhydrous. See Sodium acetate anhydrous Acetic acid, sorbKol ester. See Sorbityl acetate Acetic acid, sulfo-, 1-dodecyl ester, sodium salt Acetic acid, sulfo-, dodecyl ester, S-sodium saH. See Sodium lauiyl sulfoacetate Acetic acid, vinyl ester, polymer Acetic acid vinyl ester polymers. See Polyvinyl acetate... 

Figure D1.6.3 TLC-FID separation of a range of standard lipids. The mobile phase was 91 6 3 1 (v/v/v/v) hexane/ethyl acetate/diethyl ether/formic acid. Time refers to scanning time of the Chromarod. Abbreviations CE, cholesterol ester CHO, cholesterol DG, 1,2-diglyceride 1,3-DG, 1,3-diglyceride FFAU, highly unsaturated free fatty acid FFAS, less unsaturated free fatty acid MG, 1-monoglyceride PL, phosphatidylcholine TGU, highly unsaturated triglyceride TGS, saturated triglyceride. Tripalmitin and palmitic acid were used to complement trilinolenin and linolenic acid. Reproduced from Ackman and Heras (1997) with permission from AOCS Press.

Several polymers were found to fit all or most of the above criteria and were used to prepare the carrier films. Many polymers have been used for this purpose, viz., ethyl cellulose, poly(y-benzyl glutamate), poly(vinyl acetate), cellulose acetate phthalate, and the copolymer of methyl vinyl ether with maleic anhydride. In addition to the base polymers, plasticizers were often needed to impart a suitable degree of flexibility. Plasticizers, which are found to be compatible with polymeric materials include, acetylated monoglycerides, esters of phthalic acid such as dibutyl tartarate, etc. An excipient was usually incorporated into the matrix of the carrier films. The excipients used were water-soluble materials, which are capable of creating channels in the polymer matrix and facilitate diffusion of the drug. PEGs of different molecular weights were used for this purpose. 

The properties of monoglycerides can also be modified by esterification of one of the hydroxyl groups with acetic, lactic, fumaric, tartaric or citric acids. Similar emulsifiers are synthesised by reacting propylene glycol with saturated fatty acids to give a mixture of mono- and diacyl esters, which can be molecularly distilled to prepare concentrates containing about 90% propylene-glycol monostearate. 

Intestinal absorption of vitamin E is dependent upon normal processes of fat absorption. Specifically, both biliary and pancreatic secretions are necessary for solubilization of vitamin E in mixed micelles containing bile acids, fatty acids, and monoglycerides (Figure 3). a-Tocopheryl acetates (or other esters) from vitamin E supplements are hydrolyzed by pancreatic esterases to a-tocopherol prior to absorption. Following micellar uptake by entero-cytes, vitamin E is incorporated into chylomicrons and secreted into the lymph. Once in the circulation, chylomicron triglycerides are hydrolyzed by lipoprotein lipase. During chylomicron catabolism in the... 

Safflower oil. See Safflower (Carthamus tinctorius) oil Safflower oil, hybrid. See Hybrid safflower (Carthamus tinctorius) oil Safflower oil monoglyceride. See Safflower glyceride Safflower oil (unhydrogenated) Safflower seed oil. See Safflower (Carthamus tinctorius) oil Sago starch. See Starch SAIB. See Sucrose acetate isobutyrate Sal ammonia Sal ammoniac. See Ammonium chloride Salicylic acid-2-ethylhexyl ester. See 2-Ethylhexyl salicylate Salicylic acid octyl ester. See Octyl salicylate Salicylsulfonic acid. See 5-Sulfosalicylic acid Saline. See Sodium chloride Salmiac. See Ammonium chloride SALP. See Sodium aluminum phosphate acidic Sal soda. See Sodium carbonate Salt. See Sodium chloride Sal tartar. See Sodium tartrate Salt cake. See Sodium sulfate... 

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