Biocatalysts having an enzymic activity, and products obtained
An enzyme carrier is prepd. by coating 0.1-0.25 mm mineral particles with chitosan [9012-76-4] and binding it with glutaraldehyde [111-30-8], which may be reduced by NaBH4. Alternatively, an enzyme may be bonded to the chitosan layer by a carbodiimide to stabilize the enzyme. Thus, 8 g chitosan in 300 mL HOAc + 400 mL water was left overnight with a suspension of 120 g silica gel, transferred to a glutaraldehyde soln. for 2 h, and agitated gently with an invertase [9001-57-4] soln. at pH 4 which immobilized 89% of the enzyme without any loss of activity. [on SciFinder (R)]
4324137
CAN 99:86901
17-6
Food and Feed Chemistry
Patent
written in French.
19830525
111-30-8; 7631-86-9; 9012-76-4 Role: BIOL (Biological study) (enzyme immobilization by, in food manuf.); 9001-57-4; 9002-07-7; 9031-11-2 Role: PROC (Process) (immobilization of, in food manuf.)
Designated States R: BE, DE, FR, GB, IT, NL, SE.
A1
CH
81-7375
19811117
Alternative title(s) : (de) Verfahren zur herstellung von biokatalysatoren mit enzymatischer aktivität und hergestellte produkte. (fr) Procédé de préparation de biocatalyseurs doués d'activité enzymatique et produits obtenus. (en) Process for the preparation of biocatalysts having an enzymatic activity ,and products obtained.
| DOI | Country code | Kind code | Date issued |
US4918016 | US | A | 1990-04-17 |
IE53983 | IE | B1 | 1989-05-10 |
MX7453 | MX | E | 1988-12-13 |
JPS6216637 | JP | B2 | 1987-04-14 |
AU551149 | AU | B2 | 1986-04-17 |
CH653363 | CH | A5 | 1985-12-31 |
NZ202314 | NZ | A | 1985-07-31 |
DE3263162 | DE | D1 | 1985-05-23 |
EP0079595 | EP | B1 | 1985-04-17 |
ES8401776 | ES | A1 | 1984-01-01 |
ZA8207728 | ZA | B | 1983-08-31 |
JPS5889185 | JP | A | 1983-05-27 |
AU8979382 | AU | A | 1983-05-26 |
EP0079595 | EP | A1 | 1983-05-25 |
IE822729 | IE | L | 1983-05-17 |