The present invention relates to novel methods for stabilizing aqueous deacylation,
via use of buffers in the production of sucralose. The present invention provides
a process for producing sucralose from an acyl-sucralose compound whereby the acyl-sucralose
compound is deacylated in the presence of a buffering agent, which stabilizes the
pH of the feed mixture and decreases the accumulation of undesired anhydro compounds.
Further, the present invention provides a process whereby the acyl-sucralose compound
is deacylated directly either prior to or after removal of the tertiary amide reaction
vehicle from the neutralized chlorination feed mixture. An aqueous solution of
sucralose including salts and other compounds is produced, from which sucralose
is recovered by extraction and purified by crystallization.
