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US 5,496,715 AGranted
Process for preparing indigo
AssigneesMitsubishi Chemical Corporation, Petroleum Energy Center
InventorsMakoto Goto, Terukazu Nara, Masato Terasawa, Hideaki Yukawa
Life of this patent
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Abstract
There is disclosed a process for preparing indigo which comprises bringing an indigo-producing bacteria belonging to genus Acinetobacter or treated products thereof into contact with an aqueous solution containing at least indole to have indigo formed and accumulated in the aqueous solution; and collecting indigo from the aqueous solution.
Claims14
A process for preparing indigo which comprises
- bringing an indigo-producing bacteria belonging to genus Acinetobacter which is at least one selected from the group consisting of Acinetobacter species MY-15, Acinetobacter calcoaceticus ATCC 19606, Acinetobacter species VA-66 and Acinetobacter species VA-251 into contact with an aqueous solution containing at least indole to have indigo formed and accumulated in the aqueous solution;
- and
- collecting indigo from the aqueous solution.
Dependencies are inferred from the claim text.