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1.发明授权Process for the separation and purification of riboflavinyl glycosides 失效RIBOFLAVINYL GLYCOSIDES的分离和纯化方法
公开(公告)号：US3734828A
公开(公告)日：1973-05-22
申请号：US3734828D
申请日：1971-03-31
Applicant: HAYASHIBARA CO
IPC: C07D475/14 , C07H19/207 , C12P25/00 , C07D57/32
CPC classification number: C12P25/00 , C07D475/14 , Y10S435/803
Abstract: PROCESS FOR RECOVERING AND PURIFYING RIBOFLAVINYL GLYCOSIDES WHICH ARE PRODUCED BY SUBJECTING TRANSGLUCOSIDASE TO A MIXTURE SOLUTION OF CARBOHYDRATES AND RIBOFLAVIN WHICH COMPRISES CRYSTALLIXING RIBOFLAVIN BY MEANS OF REDUCTION CONCENTRATION THEREBY REMOVING THE CRYSTALLIZED RIBOFLAVIN, ADDING HYDROSULFITE TO THE CRYSTALLIZED RIBOFLAVIN TO GIVE REDUCED RIBOFLAVINYL GLUCOSIDES IN CRYSTAL FORMS, SEPARATING THE PRRODUCT FROM THE SUGARS, PASSING THE RESULTING PRRODUCT THROUGH ACIDIC- AND MODERATELY BASIC ION EXCHANGE RESINS THEREBY REMOVING IMPURITIES, THEN CONCENTRATING AND CRYSTALLIZING THE RESULTING PRODUCT.
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公开(公告)号：US3801461A
公开(公告)日：1974-04-02
申请号：US3801461D
申请日：1971-08-31
Applicant: HAYASHIBARA CO
Inventor： MIYAKE T , SHIOSAKA M
CPC classification number: C12N9/10 , C12N9/00 , C12N9/2457 , C12Y302/01041 , Y10S435/814
Abstract: The present invention relates to a process for the extraction of enzymes from microorganisms which is characterized in that an urea solution is used in the extraction of intracellular enzymes produced in cells of microorganisms.
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公开(公告)号：US3763009A
公开(公告)日：1973-10-02
申请号：US3763009D
申请日：1971-10-04
Applicant: HAYASHIBARA CO
CPC classification number: C07H15/26 , C12P19/44 , Y10S435/913 , Y10S435/914 , Y10S435/933 , Y10S435/935
Abstract: The present invention relates to a process for the improvement of the oxidation resistance of ascorbic acid by subjecting a mixture of ascorbic acid, maltose and/or oligosaccharides to the action of an enzyme derived from genera Asperigillus, Penicillium or others to convert the mixture enzymatically into ascorbic acid glucoside.
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