نتایج جستجو برای: polyols
تعداد نتایج: 955 فیلتر نتایج به سال:
A significant contribution to displacement of fossil petroleum utilization can be made through the use of renewable waste and byproduct material for commodity chemical production. One such opportunity is lactose recovered from cheese whey. Several routes for use have been considered. A process involving catalytic hydrolysis of the lactose, catalytic hydrogenation to produce the sugar alcohols, ...
produced through hydrolysis of sucrose by the yeasts. Our objective was to establish a factor which would permit a correction for the presence of fructose in the procedure of Lambert and Neish in the estimation of glycerol, and consequently other polyols when estimated as glycerol, providing that besides glucose and fructose no other substances which interfere in this method were present in app...
Analyte-responsive smart polymeric materials are of great interest and have been actively investigated in the field of regenerative medicine. Phenylboronate containing copolymers form gels with polyols under alkaline conditions. Monosaccharides, by virtue of their higher affinity towards boronate, can displace polyols and solubilize such gels. In the present study, we investigate the possibilit...
Sorbitol and xylitol are polyols often used in foods as naturally occurring sugar substitutes. They provide sweet taste and reduced calories in products of intermediate moisture. This type of food is susceptible to spoilage by xerophilic molds which affect shelf life of foods and produce significant losses. The aim of the present work was to study the effect of glycerol, sorbitol and xylitol on...
The influence of polyols as cosurfactants (propylene glycol PG; glycerol G) and short chain alcohol as a cosolvent (ethanol EtOH) on the formation and solubilization capacity of the systems: hexadecane/monoacylglycerols (MAG)/polyol/water:EtOH, at 60 °C, was investigated. Electrical conductivity measurement, and the DSC method were applied to determine the structure and type of microemulsions f...
This article describes a straightforward ion chromatographic method that uses isocratic elution and pulsed amperometric detection (PAD) to sensitively determine water-soluble polyols and sugar alcohols as well as mono-, diand oligosaccharides in essential and non-essential foodstuffs. While carbohydrate determination of most foodstuffs requires only minimal sample pretreatment such as dilution ...
Despite significant progress in the design of receptors and sensors for simple polyols and monosaccharides, few synthetic receptors discriminate among multiple saccharide units simultaneously, especially under physiological conditions. Described here is the three-dimensional structure of a supramolecular complex-a β-peptide bundle-designed for the potential to interact simultaneously with as ma...
Phenylboronic acid (PBA) derivatives are known to form reversible complexes with polyols, including sugars. This unique chemistry has provided many useful molecular bases for analytical and therapeutic applications. This mini-review highlights some new aspects of related research efforts with a special focus on the interaction with sialic acid as a new class of molecular targets and other PBA-b...
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