DEGRADATION OF LIGNIN SUBSTRATES BY LIGNOLYTIC BACTERIA ISOLATED FROM EARTHWORM

A research has been carried out to evaluating potency of bacteria isolated from earthworm as lignin substrates degrader. The potency of lignolytic was identified based on degradation of lignin substrates measurement using clear/diffusion zone diameters .This study showed that lignolytic bacteria isolated from earthworm produce clear/diffusion zone diameters 0,821 – 0,876 cm; 0,910 – 0,964 cm; 1,200 – 1,269 cm cm respectively for tannic acid, rice straw and rice bran substrates, while bacteria isolates coded EB1LG and EB3LG produced highest clear/diffusion zone diameters on all substrates measured. It was concluded that bacteria isolates coded EB1CL was potential as ellulosic substrates degrader. Keywords: Lignolytic Bacteria, Earthworm, Clear Zone Diameters, Lignin Substrates