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US 9,879,296 B2Granted
Method for preparing tagatose from residue after extracting coffee
AssigneeCj Cheiljedang Corporation
InventorsYoung Mi Lee, Seong Bo Kim, Min Hae Kim, Sung Jae Yang, Seung Won Park
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Abstract
The present invention relates to a method for preparing tagatose from residue after extracting coffee, comprising: obtaining a hydrolysate by hydrolyzing residue after extracting coffee into acid; obtaining a hydrolysate refined by decolorization and ion-refining the obtained hydrolysate; and obtaining tagatose by isomerizing the refined hydrolysate to an arabinose isomerase.
Claims20
A method for producing tagatose, the method comprising:
- providing spent coffee grounds or an extract therefrom containing oligosaccharides that comprise arabinogalactan and galactomannan,
- contacting the spent coffee grounds or the extract with an acid to hydrolyze oligosaccharides contained therein to produce galactose in a hydrolysate,
- subjecting the hydrolysate to decolorization and ion refining to provide a decolored and refined composition, and
- subjecting the decolored and refined composition to an isomerization reaction of galactose contained therein with an L-arabinose isomerase to produce tagatose.
1 more element
A method for producing tagatose, the method comprising:
- providing spent coffee grounds or an extract therefrom containing oligosaccharides that comprise arabinogalactan and galactomannan,
- contacting the spent coffee grounds or the extract with an acid to hydrolyze oligosaccharides contained therein to produce galactose in a hydrolysate,
- subjecting the hydrolysate to decolorization and ion refining to provide a decolored and refined composition containing galactose,
- separating the galactose from the decolored and refined composition;
- and
- subjecting the separated galactose to an isomerization reaction with an L-arabinose isomerase to produce tagatose.
3 more elements
Dependencies are inferred from the claim text.