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)]
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Food and Feed Chemistry
written in French.
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.
Record created on 2006-04-18, modified on 2016-08-08