Desorption of Trichoderma reesei cellulase from cellulose by a range of desorbents.
The desorption of Trichoderma reesei cellulase from Avicel by a wide range of desorbents was measured. Emphasis was placed on desorption at alkaline pH. A maximum desorption of 65-68% Avicelase activity was achieved by contact with NaOH, pH 10.0, at 40 degrees C for 5 min in the presence of 0.005% Triton X-100 or Tween 80. The design of a suitable desorption process using these conditions is discussed. Glycerol was also effective as a desorbent either alone or in combination with alkali and detergent. However, relatively high concentrations of glycerol were needed and the maximum desorption achieved, 68%, was not significantly greater than that with only alkali and detergent.
Otter
D E
DE
Department of Chemicals and Materials Engineering, University of Auckland, Auckland, New Zealand.
Munro
P A
PA
Scott
G K
GK
Geddes
R
R