Alkyl polypentosides

Alkyl Polypentosides Based on Fischer-Type Glycosylation. 84... 

The glycosidation of the reducing sugars obtained from hemicelluloses leads to the alkyl polypentosides surfactants. Glycosylation needs fatty alcohols as raw materials. Natural fatty alcohols derived, for example, from coconut or palm kernel oil are used in the alkyl polyglycoside synthesis to buUd up the hydrophobic part of the surfactants. These alcohols are used as blends obtained after transesterification and fractionation of oils leading to corresponding fatty acid methyl esters, and... 

Recently, development activities for alkyl polypentosides have been described. The products are based on hemicellulose, which, after hydrolysis, leads to a mixture of glycosides (mainly pentoses such as xylose and arabinose). These pentoses are transformed into the desired alkyl polypentosides via the reaction with fatty alcohols under standard reaction conditions. The products are reported to have similar properties to alkyl polyglycosides. These developments have been carried out by Wheatoleo, a joint venture between Oleon and A.R.D./Soliance [57]. 

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