Optimized Synthesis of Sucrose Polyesters: Comparison of Physical Properties of Sucrose Polyesters, Raffinose Polyesters and Salad Oils

Abstract

Synthesis and purification of sucrose polyesters (SPE) were optimized to obtain high-yields of SPE. Sucrose octaacetate (SOAC) and fatty acid methvl esters fFAME) of salad oils or FAME blends of homogenous fatty acids and salad'oils were interesterified in the presence gf sodium metal. Yields 99.6-99.8% of purified SPE based on initial weight of SOAC were obtained. SPE structure was confirmed by infrared (IR) and C-13 nuclear magnetic resonance (C-13 NMR) spectroscopy. Physical properties of SPE and raffinose polyesters (RPE) were similar to physical properties of conventional salad oils. The hydrophile-lipophile balance (HLB) of SPE and RPE were between 2:6 HLB uniis.'Differential scanning calorimetry (DSC) was used to determine the meltine nronerties of SPE and RPE. Neither SPE nor RPE was susceptibleyd in'vifro lipolysis.

Emulsification properties of polyesters and sucrose ester blends I: Carbohydrate fatty acid polyesters

“…Most food emulsions will require an emulsifier to prevent coalescenc~ flocculation and creaming. This is consistent with their low HLB values (2.0-4.6), as previously suggested (9,10). Emulsifiers were used at 0.5% concentrations.…”

“…Synthesis and purification of carbohydrate polyesters, such as sucrose polyoleat~ trehalose and sorbitol polyoleat~ and raffinose polyester followed the procedures of Akoh and Swanson (8,10,12). Xylene was purchased from Fisher Scientific (Norcross, GA).…”

“…Akoh and Swanson (8)(9)(10) suggested that carbohydrate polyesters, such as raffinose and sucrose polyesters, may be suitable w/o emulsifiers based on their low HLB values (HLB 2-6). Akoh and Swanson (8)(9)(10) suggested that carbohydrate polyesters, such as raffinose and sucrose polyesters, may be suitable w/o emulsifiers based on their low HLB values (HLB 2-6).…”

Changes in dietary energy with novel proteins and fats

“…As recently as January 1990, Akoh & Swanson (1990) suggested that conditions for SPE production had been further improved by reacting sucrose octaacetate with the fatty acid methyl esters of salad oils; yields of almost 100% of purified SPE were obtained.…”

Optimization of Sucrose Polyester Synthesis Using Response Surface Methodology

“…In addition to having no food calories, SPE has also shown promise in reducing blood cholesterol and body weight of obese individuals (Jandacek et al, 1990). An optimized process for high yield synthesis of SPE would benefit food manufacturers and processors (Akoh and Swanson, 1990).…”