Methods for the electrolytic production of erythrose or erythritol
申请人:Stapley Jonathan A.
公开号:US20070181437A1
公开(公告)日:2007-08-09
Methods for the production of erythrose and/or erythritol are provided herein. Preferably, the methods include the step of electrolytic decarboxylation of a ribonic acid or arabinonic acid reactant to produce erythrose. Optionally, the reactant can be obtained from a suitable hexose sugar, such as allose, altrose, glucose, fructose or mannose. The erythrose product can be hydrogenated to produce erythritol.
[EN] NOVEL DIOL COMPOUNDS SYNTHESIS AND ITS USE FOR FORMAL SYNTHESIS OF (2R, 3 S)-3-HYDROXYPIPECOLIC ACID<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE NOUVEAUX COMPOSÉS DE DIOL ET SON UTILISATION POUR LA SYNTHÈSE FORMELLE D'ACIDE (2R, 3S)-3-HYDROXYPIPÉCOLIQUE
申请人:COUNCIL SCIENT IND RES
公开号:WO2016056031A1
公开(公告)日:2016-04-14
The patent discloses novel diol derivatives of general formula I, [Formula should be inserted here] A chiral pool process for the synthesis of the compound of formula I from D glucose. Further, it discloses a process for the synthesis of (2R, 3S)-3-hydroxypipecolic acid from D- glucose using chiral pool approach, wherein the D-glucose used is in enantiomerically pure form.
METHODS FOR THE ELECTROLYTIC PRODUCTION OF ERYTHRITOL
申请人:Stapley Jonathan A.
公开号:US20110272291A1
公开(公告)日:2011-11-10
Methods for the production of erythrose and/or erythritol are provided herein. Preferably, the method of producing erythritol includes the step of electrolytic decarboxylation of a ribonic acid or arabinonic acid reactant to produce erythrose and the step of electrolytic reduction or erythrose to produce erythritol. Optionally, the reactant can be obtained from a suitable hexose sugar, such as allose, altrose, glucose, fructose or mannose.
L'invention concerne un procédé de fabrication de D-érythrose, caractérisé par le fait qu'une solution aqueuse d'un sel de l'acide gluconique est mise au contact de peroxyde d'hydrogène en présence d'un sel d'un métal choisi dans le groupe constitué du cobalt, du nickel et du ruthénium. Elle concerne encore un procédé de fabrication d'érythritol par hydrogénation de D-érythrose ainsi obtenu.
Fermentation process for preparing erythritol using mutant cells of Trigonopsis variabilis by controlling osmotic pressure
申请人:Bolak Co., Ltd.
公开号:EP1088894A1
公开(公告)日:2001-04-04
The present invention relates to a fermentation process for preparing erythritol with high productivity with novel mutant of Trigonopsis variabilis, more specifically, for preparing erythritol under optimal fermentation conditions for maximum erythritol production by optimizing the environmental conditions of culture such as pH, temperature and controlling osmotic pressure. A two-stage fermentation was performed to control osmotic pressure. Osmotic pressure was adjusted to a low level during growth phase and to a high level during production phase by adding glucose and NaCl. Therefore, erythritol production could be increased due to the increased mutant cells.