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Process for the selective preparation of derivatives of monosaccharides and polyols which are partially acylatedCM Patents

Índice de la ficha

Updated at
24/07/2026
Numero publicacion
EP.0945516.A1
Fecha publicacion
29/09/1999
Numero solicitud
EP19970942040

En detalle

Resumen

[0001] The process refers to highly selective enzymatic production of monosaccharides and mono- polyols and/or disubstitued with fatty acids. The procedure is based on the simple mixture of polyol or monosaccharide with the fatty acid, the addition of solvent, and the use of lipases that permit the highly selective obtainment of these products without catalysts or toxic agents. The water produced during the process must be continuously removed throughout the same. The invention belongs to the alimentary, pharmaceutical, cosmetic and chemical sectors. The products obtained are excellent biodegradable and biocompatible non-ionic tensioactive agents which are used as additives for their emulsifying, oily, thickening and moisturising properties.

Reivindicaciones

1. PROCEDURE FOR THE SELECTIVE PREPARATION OF PARTIALLY ACYLATED MONOSACCHARIDE AND POLYOL DERIVATIVES characterized by the mixture of polyol or monosaccharide with the fatty acid, addition of a solvent, employment of lipases, the water produced during the process being removed during the process. 2. A procedure according to claim 1 characterized by the lipase being Candida antartica or Mucor miehie. 3. A procedure according to claim 1 characterized by the employment of a reaction medium whose water content is controlled in the range of 0.001 and 5% w/w. 4. A procedure according to claims 1 and 3 characterized because it is performed between 0 and 60ºC. 5. A procedure according to claims 1,3 and 4 characterized in that the concentration of fatty acids exceeds 100 mM and are in a molar excess of at least 1.5 fold the concentration of the sugar. 6. A procedure according to claims 1,3,4, and 5 characterized by the employment of different fatty acids of variable chain length between C8 and C22 in which the acid chain can be saturated or unsaturated, linear or branched. The procedure can use a combination of fatty acids from different sources.

Etiquetas

Inventores
Arcos Jimenez Jose AntonioValdelatasOtero Hernandez CristinaJimenez Jose Antonio ArcosHernandez Cristina OteroJose Antonio Arcos JimenezCristina Otero HernandezArcos Jose Antonio JimenezOtero Cristina HernandezJose Antonio Jimenez ArcosCristina Hernandez OteroArcos Jimenez AntonioArcos Jimenez Salvador
Solicitantes
Consejo Superior de Investigaciones CientíficasConsejo Superior de Investigaciones Cientificas, MadridArcos Jimenez Jose AntonioOtero Hernandez Cristina
Clasificacion ipc
C12P 19/ 02 A IC12P 19/ 44 A IC12P 7/ 62 A I
Clasificacion cpc
435/105435/198
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