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Assay and properties of 1,3-Beta-glucanase in soil
Journal article   Peer reviewed

Assay and properties of 1,3-Beta-glucanase in soil

G Lethbridge, A T Bull and Richard G Burns
Soil Biology and Biochemistry, Vol.10(5), pp.389-391
1978
url
https://doi.org/10.1016/0038-0717(78)90063-9View
Published Version

Abstract

soil
1.3-Beta-Glucanase (laminarinase) activity in soil was measured using laminarin as the substrate. Activity was optimal in sodium acid-maleate buffer at pH 5.4 and followed Michaelis-Menten kinetics. Three methods of analysing kinetic data gave Km values of 0.23, 0.21 and 0.20 mg.ml-1. Vmax values were 0.41, 0.39 and 0.39 ?mole glucose, g-1. h-1. The activation energy of the reaction was 49 kJ. mole-1. A proportion of the activity was highly resistant to storage at various temperatures: at 50 C 1,3-Beta-glucanase had a half-life of 28 days. © 1978.

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