METHOD FOR PRODUCING USEFUL CHEMICAL SUBSTANCE FROM TEREPHTHALIC ACID POTASSIUM SALT

TPA-DHD can be produced by using, as a raw material, terephthalic acid salt that contains 0.5 times or more and twice or less the amount of potassium based on all of the terephthalic acids contained in the terephthalic acid salt in terms of moles and by using a microorganism expressing terephthalate...

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Bibliographische Detailangaben
Hauptverfasser:	NUKUI NORIYUKI, KOMAKI MAKI, NISHIZAWA AKITO, NISHI TATSUNARI
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	TPA-DHD can be produced by using, as a raw material, terephthalic acid salt that contains 0.5 times or more and twice or less the amount of potassium based on all of the terephthalic acids contained in the terephthalic acid salt in terms of moles and by using a microorganism expressing terephthalate 1,2-dioxygenase. Further, TPA-DHD can be converted into protocatechuic acid by TPA-DHD dehydrogenase and protocatechuic acid can be converted into gallic acid by para-hydroxybenzoate hydroxylase. In addition, by subjecting waste polyesters to heat treatment in an ethylene glycol solvent or 1-butanol solvent containing potassium hydroxide, such polyesters can be efficiently depolymeried, and potassium terephthalate suitable to chemical production by the microorganism can be prepared.