QUALITY TEST FOR POLYMERIZABLE LACTIC ACID AND METHOD FOR PRODUCING SAME

The invention relates to a test for determining the quality of lactic acid, comprising a) means for the polycondensation of the lactic acid to form a pre-polymer b) means for depolymerization to form dilactide, and c) means for carrying out analytical methods for determining the dilactide yield and/...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Rainer HAGEN, Udo MÜHLBAUER, Wolfgang TIETZ, Willi TECHLIN, Joachim SCHULZE, Shashank GHANEGAONKAR
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MEASURING METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SPIRITS TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention relates to a test for determining the quality of lactic acid, comprising a) means for the polycondensation of the lactic acid to form a pre-polymer b) means for depolymerization to form dilactide, and c) means for carrying out analytical methods for determining the dilactide yield and/or the racemization, wherein lactic acid which fulfills the test and is suitable for polymerization exhibits a dilactide yield of > 90 % and a racemization of < 5 %. Ensayo para la determinación de la calidad de ácido láctico, que comprende a) medios para la policondensación del ácido láctico en un prepolímero, b) medios para la despolimerización en dilactido, y c) medios para la realización de métodos analíticos para la determinación del rendimiento de dilactido y/o la racemización, en el que ácido láctico, que cumple el ensayo y es adecuado para la polimerización, presenta un rendimiento de dilactido de > 90 % y una racemización de < 5 %.