Invention Grant
- Patent Title: Method for producing D-tryptophan
- Patent Title (中): D-色氨酸的生产方法
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Application No.: US5110Application Date: 1998-01-09
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Publication No.: US5916781APublication Date: 1999-06-29
- Inventor: Hiroaki Yamamoto , Kazuya Mitsuhashi , Akinobu Matsuyama , Fusao Tomita
- Applicant: Hiroaki Yamamoto , Kazuya Mitsuhashi , Akinobu Matsuyama , Fusao Tomita
- Applicant Address: JPX
- Assignee: Daicel Chemical Industries, Ltd.
- Current Assignee: Daicel Chemical Industries, Ltd.
- Current Assignee Address: JPX
- Priority: JPX9-002228 19970109; JPX9-136267 19970527; JPX9-329792 19971201
- Main IPC: C12P13/22
- IPC: C12P13/22 ; C12P41/00 ; C12R1/01 ; C12R1/05 ; C12R1/15 ; C12R1/18 ; C12R1/19 ; C12R1/22 ; C12R1/37 ; C12R1/40 ; C12R1/425 ; C12R1/64 ; C12R1/84
Abstract:
The method for producing D-tryptophan with high optical purity and high yield is provided, which comprises contacting a mixture of D,L-tryptophan with organisms which produce tryptophanase to degrade L-tryptophan selectively, thereby increasing the content of D-tryptophan in D,L-tryptophan.
Public/Granted literature
- US5347976A Peep sight with field-viewing frame Public/Granted day:1994-09-20
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