公开(公告)号：US3391137A

公开(公告)日：1968-07-02

申请号：US46301965

申请日：1965-06-10

Applicant: STAMICARBON

Inventor： BIGOT JOHAN A ,  KERKHOFFS PIETER L

IPC: C07D201/10

CPC classification number: C07D201/10

公开(公告)号：US3219689A

公开(公告)日：1965-11-23

申请号：US12597961

申请日：1961-07-24

Applicant: STAMICARBON

Inventor： BIGOT JOHAN A ,  KERKHOFFS PIETER L

IPC: C07C1/207 ,  C07C45/32 ,  C07C45/33

CPC classification number: C07C45/33 ,  C07C1/2078 ,  C07C45/32 ,  C07C2531/04 ,  C07C2601/10 ,  C07C2601/16 ,  C07C13/20

公开(公告)号：CA914154A

公开(公告)日：1972-11-07

申请号：CA914154D

Applicant: STAMICARBON

Inventor： DAHLMANS JOHANNES J ,  KERKHOFFS PIETER L

公开(公告)号：CA655498A

公开(公告)日：1963-01-08

申请号：CA655498D

Applicant: STAMICARBON

Inventor： OTTENHEYM JOHANNES H ,  KERKHOFFS PIETER L

公开(公告)号：CA1258244A

公开(公告)日：1989-08-08

申请号：CA495262

申请日：1985-11-13

Applicant: STAMICARBON

Inventor： KERKHOFFS PIETER L ,  BOESTEN WILHELMUS H J

IPC: C12P41/00 ,  C12N9/80 ,  C12P13/04 ,  C12P13/08 ,  C12R1/40

Abstract: The invention relates to a process for the preparation of L-.alpha.-amino acid and D-.alpha.-amino acid amide from DL-.alpha.-amino-acid amide by contacting the DL-.alpha.-amino acid amide in an aqueous solution with an .alpha.-amino acyl amidase containing preparation obtained from a culture of Pseudomonas putida in the presence of traces of bivalent metal ions as activator, characterized in that the aqueous solution also contains a potassium salt selected from the group consisting of potassium sulphate and potassium chloride. The invention further relates to a process for the preparation of a L-.alpha.-amino acid and D-.alpha.-amino acid amide starting from the corresponding aldehyde, potassium cyanide and ammoniumsulphate, subsequent treatment with a ketone and potassiumhydroxide and finally subjecting to enzymatic hydrolysis with a preparation obtained from Pseudomonas putida.

公开(公告)号：CA747924A

公开(公告)日：1966-12-06

申请号：CA747924D

Applicant: STAMICARBON

Inventor： KERKHOFFS PIETER L ,  BIGOT JOHAN A

公开(公告)号：CA1173766A

公开(公告)日：1984-09-04

申请号：CA380757

申请日：1981-06-26

Applicant: STAMICARBON

Inventor： PETERS PETER J H ,  KERKHOFFS PIETER L

IPC: C12N9/24 ,  C12N11/04 ,  C12N11/08 ,  C12P19/14

Abstract: The obtention of enzyme preparations having inulinase activity is disclosed. Said preparations are obtained from cultures of Aspergillus phoenicis, preferably the strain CBS 294.80. They posses a high inulinase activity, combined with favorable pH range and lack of inhibition by the substrate inuline or heavy-metal ions. One possible use is in the preparation of fructose from naturally occurring inuline.

公开(公告)号：CA697573A

公开(公告)日：1964-11-10

申请号：CA697573D

Applicant: STAMICARBON

Inventor： BIGOT JOHAN A ,  KERKHOFFS PIETER L