Xylanase activity
COEI-1-XYLANA Determination of endo-1,4- β-xylanase activity in enzymatic preparations
General specifications
Hemicellulases are generally present in enzymatic preparations among other activities within an enzymatic complex. Unless otherwise stated, the specifications must be compliant with Resolution OIV-OENO 365-2009 on the general specifications of enzymatic preparations that appear in the International Oenological Codex.
Arabinanase activity
COEI-1-ACTARA Determination of endo- α(1,5) arabinanase activity in pectolytic enzyme preparations
General specifications
Urease
COEI-1-UREASE Urease
E.C.3.5.1.5
CAS N°: 9002-13-5
General specifications
The specifications must be in compliance with general specifications for enzymatic preparations as provided for in the International Oenological Codex.
Polygalacturonase activity
COEI-1-ACTPGA Determination of polygalacturonase activity in enzymatic preparations (endo- and exo-polygalacturonase activities (PG)
(EC. 3.2.1.15 – CAS N° 9032-75-1)
General specifications
Proteases (aspergillopepsine I)
COEI-1-PROTEA Comparative evaluation of protease activity (Aspergillopepsin I) in enzyme preparations (EC 3.4.23.18)
- Origin
Enzyme preparations that have an Aspergillopepsin I activity are formed by controlled fermentation of Aspergillus spp., in particular of Aspergillus niger.
Pectinmethylesterase activity
COEI-1-ACTPME Determination of pectin methylesterase activity in enzymatic preparations ((Pectin Methyl-Esterase Activity (PME)
(EC. 3.1.1.11 – CAS N° 9025-98-3)
General specifications
These enzymes are usually present within an complex enzymatic preparation. Unless otherwise stipulated, the specifications must comply with the resolution OIV/OENO 365/2009 concerning the general specifications for enzymatic preparations included in the International Oenological Codex.
Pectinlyase activity
COEI-1-ACTPLY Determination of pectinlyase activity in enzymatic preparations (Pectinlyase activity)
EC. 4.2.2.10. – CAS no. 9033-35-6)
General specifications
Glycosidase
COEI-1-GLYCOS Determination of glycosidase activity in enzymatic preparations
Introduction
Enzymes of the glycosidase type are used to reveal the flavours of wines based on their glycosylated precursors.
Cinnamoyl esterase activity
COEI-1-CINEST Measurement of cinnamoyl esterase activity in enzymatic preparations
Cellulase
COEI-1-ACTCEL Determination of cellulase activity in enzymatic preparations (endo-(1 4)- β-D- glucanase)
EC 3.2.1.4 – CAS N° 9012-54-8
General specifications