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Sucrose monoesters

Sucrose monoesters (SMEs) are used as nonionic surfactants, in detergents and as emulsifiers in foods. Some SMEs have bacteriostatic activity and are used to prevent spoilage in beverages. Semperfresh, an SME produced in the U.K., is used as a coating to extend the shelf life of fmits and vegetables (21,29). [Pg.5]

Sucralfate [54182-58-0] an aluminum salt of sucrose octasulfate, is used as an antacid and antiulcer medication (59). Bis- and tris-platinum complexes of sucrose show promise as antitumor agents (60). Sucrose monoesters are used in some pharmaceutical preparations (21). A sucrose polyester is under evaluation as a contrast agent for magnetic resonance imaging (mri) (61). Oral adrninistration of this substance opacifies the gastrointestinal tract and eliminates the need for purging prior to mri. [Pg.6]

Phosphate Esters. The phosphorylation of sucrose using sodium metaphosphate has been reported (78). Lyoptulization of a sodium metaphosphate solution of sucrose at pH 5 for 20 hours followed by storage at 80°C for five days produced a mixture of sucrose monophosphates. These products were isolated by preparative hplc, with a calculated yield of 27% based on all organic phosphate as sucrose monoesters. Small proportions of glucose and fmctose were also formed. [Pg.34]

Sucrose acrylate derivatives, 23 480 Sucrose concentration, polarimetric determination of, 23 473 Sucrose derivatives, 23 480 Sucrose esters, 23 480 Sucrose hydrolysis, 23 462 Sucrose monoesters (SMEs), 23 480, 481 Sucrose polyester, 23 481 Sucrose separation... [Pg.897]

Figure 2.8 Sucrose monoesters and monoethers with useful surfactant properties. Figure 2.8 Sucrose monoesters and monoethers with useful surfactant properties.
Critical Micellar Concentration of Sucrose Monoesters as a Function of the Chain Length and the... [Pg.263]

The major problem associated with the enzymatic acylation of sucrose is the incompatibility of the two reactants sucrose and a fatty acid ester. Sucrose is hydrophilic and readily soluble in water or polar aprotic solvents such as pyridine and dimethylformamide. The former is not a feasible solvent for (trans)esterifi-cations, for obvious thermodynamic reasons, and the latter are not suitable for the manufacture of food-grade products. The selective acylation of sucrose, as a suspension in refluxing tert-butanol, catalyzed by C. antarctica lipase B, afforded a 1 1 mixture of the 6 and 6 sucrose monoesters (Fig. 8.39) [208]. Unfortunately, the rate was too low (35% conversion in 7 days) to be commercially useful. [Pg.374]

Henkel makes alkyl polyglycoside surfactants from alcohols derived from coconut and palm oils, and glucose derived from cornstarch.277 The preparation can be done with /3-D-glucosidase.278 Sucrose monoesters of long-chain fatty acids can also be made enzymatically.279 A variety of biosurfactants are produced by various organisms that can be grown in culture.280... [Pg.222]

As can be seen, several additional hydroxyl groups are available for esterification. Thus, a variety of economically attractive sugar esters with a wide range of HLB may be prepared on a synthetic or enzymatic way. This very mild sucrose acylates are useful as edible emulsifiers and food-grade cleaners. When used in breadmaking, sucrose monoesters and diesters improve the... [Pg.15]

Sucrose chelates in DMSO react selectively with allyl halide and sodium bromoacetate to produce monoethers in high yields. Sucrose chelates in DMF solution react selectively with acid chlorides, cuihydrides and esters to produce sucrose monoesters or, in some cases, diesters as well. The yields and selectivities of the partial esterification of sucrose via chelates is higher than with other methods. The yield range of the acid derivatives studied are shown in Table XI. [Pg.74]

Owing to the relatively high cost of the purified sucrose monoesters, they never were competitive with petroleum based, anionic surfactants and their uses... [Pg.98]

Triglycerides Diglycerides Monoglycerides Sucrose monoesters Sucrose diesters... [Pg.111]

Sucrose Monoester Sucrose Diester Triglycerides Diglycerides Monoglycerides... [Pg.112]

Up to now (August, 1976) we have obtained only three data points on the volume improving effect of the pure sucrose monoesters. But those data points, along... [Pg.126]

Figure 3. Performances of a commercial sucrose monopalmitate and of sucrose monoesters of pure fatty acids in bread (pup-loaf) made from a no-shortening formula containing a 9 1 mixture of wheat-soy flour. The loaf with 3% shortening had a loaf-volume of 880 cc. (Results determirwd by C. Magoffin and K. F. Finney, Grain Marketing Research Laboratory, V.S.D.A., Manhattan, Kansas, V.S.A., in collaboration with H. Chang, Dept, of Grain Science, Kansas State University, Manhattan, Kansas)... Figure 3. Performances of a commercial sucrose monopalmitate and of sucrose monoesters of pure fatty acids in bread (pup-loaf) made from a no-shortening formula containing a 9 1 mixture of wheat-soy flour. The loaf with 3% shortening had a loaf-volume of 880 cc. (Results determirwd by C. Magoffin and K. F. Finney, Grain Marketing Research Laboratory, V.S.D.A., Manhattan, Kansas, V.S.A., in collaboration with H. Chang, Dept, of Grain Science, Kansas State University, Manhattan, Kansas)...
To tailor-make sucrose esters for food, it is important to learn which positional isomers are most effective in a given application. To begin such a program, a rapid method of characterizing a mixture of isomers of sucrose monoesters was needed. Preliminary results indicated carbon-13 nuclear magnetic resonance ( C n.m.r.) can provide the required compositional information. [Pg.128]

The softening power of sucrose monoesters declined progressively as the chain length of the fatty acid was decreased from C-18 to C-8 at both the 0.75% and 0.4% level. When plotted, the data produces a family of curves (Figure 6), all of which are not shown. Also, sucrose monooleate, monoarachidate, and sucrose monostearate were equally effective at 0.75%, but the first two were inferior at 0.4%. [Pg.131]

Figure 6. Crumb-softening effects of sucrose monoesters of pure fatty acids in soy-fortified bread (see Figure 3). Control contained no added lipid. Figure 6. Crumb-softening effects of sucrose monoesters of pure fatty acids in soy-fortified bread (see Figure 3). Control contained no added lipid.
CL CL000159 SUCROSE MONOESTER OF TALL OIL FATTY ACIDS 0.282... [Pg.69]

D-Glucose reacted with dodecyl chloroformate in DMF in the presence of sodium carbonate to produce a mixture of carbonates which was separated into mono-, di-, and tri-carbonates by t.l.c. on silica gel. Sucrose monoesters have been prepared in 44—85% yield from sucrose and 1-alkoxyethyl isocyanates in DMF containing triethylamine. The syntheses and properties of sucrose A (aryloxyalkaneacyl)-carbamates from sucrose and the corresponding isocyanate have been reported. As part of a study of the behaviour of the... [Pg.62]


See other pages where Sucrose monoesters is mentioned: [Pg.896]    [Pg.941]    [Pg.85]    [Pg.51]    [Pg.896]    [Pg.941]    [Pg.275]    [Pg.18]    [Pg.57]    [Pg.174]    [Pg.140]    [Pg.15]    [Pg.175]    [Pg.462]    [Pg.261]    [Pg.97]    [Pg.99]    [Pg.105]    [Pg.107]    [Pg.111]    [Pg.112]    [Pg.116]    [Pg.126]    [Pg.132]    [Pg.204]    [Pg.51]    [Pg.204]   
See also in sourсe #XX -- [ Pg.74 ]




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