
TY  - JOUR
A1  - Simpson, GH 
A1  - Hughes, JD 
T1  - Arylsulphatase clay interactions. I. Adsorption of arylsulphatase by kaolinite and montmorillonite
JF  - Soil Research
JO  - Soil Res.
Y1  - 1978
VL  - 16
IS  - 1
SP  - 27
EP  - 33
KW  - 
UR  - https://doi.org/10.1071/SR9780027 
N2  - The extent of arylsulphatase adsorption by both montmorillonite and kaolinite was determined using 0.1-1.0 µm fraction of sodium-clay freed from organic material, and a commercially purified arylsulphatase. Kaolinite-arylsulphatase affinity decreased with increasing solution enzyme concentration, but montmorillonitearylsulphatase affinity increased up to a solution enzyme concentration of approximately 15 mg/100 mg of clay, and decreased at higher enzyme concentrations. X-ray diffraction of the montmorillonite-arylsulphatase complex provided evidence of intercalation of the enzyme in the 2:1 lattice structure, as well as destruction of secondary and tertiary structures of the enzyme following adsorption on the interlattice surfaces. 
ER  -

