Hexose → Hexose

HRID 413946

Reaktionsgleichung

Reaktionsgleichung von HRID 413946
[CH2:1]([OH:12])[CH:2]1[O:7][CH:6]([OH:8])[CH:5]([OH:9])[CH:4]([OH:10])[CH:3]1[OH:11].C(O)C(O)C(O)C(O)C=O.[NH3:23]>C(O)C>[C:6]([O-:8])(=[O:7])[CH:5]([CH3:4])[OH:9].[NH4+:23].[CH2:1]([OH:12])[CH:2]1[O:7][CH:6]([OH:8])[CH:5]([OH:9])[CH:4]([OH:10])[CH:3]1[OH:11]

Komponenten

6

Edukt 3

HCID 206HexoseHCID 222AmmoniaHCID 854DL-Arabinose

Produkt 2

HCID 206HexoseHCID 62358Ammonium Lactate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

Accordingly, hetero-lactic fermentation of a mixture containing hexose and pentose may be performed. Hetero-lactic fermentation is conducted while neutralizing with ammonia to produce ammonium lactate and ethanol from hexose, and to produce ammonium lactate and ammonium acetate from pentose. Ammonium lactate and ammonium acetate are esterified with ethanol (if amount of ethanol obtained by fermentation is not enough, ethanol might be further added) to yield ethyl lactate and ethyl acetate, respectively. Ammonia generated at the time of esterification is recovered. Unreacted ethanol is distilled off, and purification of ethyl lactate is conducted by distillation with removing and recovering ethyl acetate.

Quellen und Nachweise

ORD-Eintrag
ord-b277a9947eab421db41f9decf91934e0
Quelldatensatz
uspto-grants-2003_05
Patentnummer
US06569989B2

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