02827nam a2200193Ia 4500999001700000003000400017005001700021008004100038082001800079100001900097245008400116260007100200502000800271520214700279700002102426856005602447942001202503952011802515  c26477d26477OSt20220826153557.0140128s9999    xx            000 0 und d  a632.3bOWS/EN  aOwseph Ansu P   aEnzyme Production and Composting Potential of Oyster Mushroom (Pleurotus spp.)   aVellayani bDepartment of Pathology, College of Agriculture c1999  bMSc3 aIn the present study, 	solid state fermentation (SSF) of different 
substrates were carried out using Pleurotus spp. to evaluate the comparative 
efficiency of four Pleurotus spp. for their enzyme (cellulase and laccase) 
production potential and cellulose and lignin degrading ability .. 
The yield characteristics as well as reduction in height and weight 
caused by different Pleurotus spp. on paddy straw and coir pith (retted and 
non retted) were recorded. Samples drawn at 10, 20 and 30 days of SSF were 
subjected to chemical analysis for their enzyme (cellulase and laccase) 
production and cellulose and lignin reduction. The cellulose and lignin 
concentration of uninoculated substrates were also estimated. 
Paddy straw supported the maximum fruit body production whereas 
there was no sporophore production in retted coir pith. The highest yield was 
recorded by Vellayani P2 followed by P. djamor. 
The height and weight of all the substrates reduced significantly on S SF, 
the maximum reduction being recorded in paddy straw followed by that in non 
retted coir pith and retted coir pith. However no significant difference was 
observed in the reduction caused by the different Pleurotus spp. tested. 
The maximum cellulase production was recorded by P. sajo-caju on 
paddy straw on the 20th day of incubation. P. sajor-caju caused the highest 
level of cellulose degradation, the maximum percentage of degradation having 
occurred in retted coir pith on the 30th day of SSF. 
 
The highest recorded level of laccase production occurred in paddy 
straw on the so" day of incubation with Vellayani P2 isolate of Pleurotus. 
However, among the different Pleurotus tested P. sajor-caju recorded the 
maximum level of laccase production. 
The maximum percentage of lignin degradation was recorded by 
P. sajor-caju in retted coir pith on the so" day of SSF. 
Correlation worked out between cellulase production and cellulose 
degradation by different Pleurotus spp. was significant positive. However the 
positive correlation obtained between laccase production and lignin 
degradation by Pleurotus spp. was not significant. 
 

  aGeetha D (Guide)  uhttp://krishikosh.egranth.ac.in/handle/1/5810103594  2ddccTH  00102ddc4070aKAUCLVbKAUCLVcTHESESd2014-03-18l0o632.3 OWS/ENp171534r2014-03-18 00:00:00w2014-03-18yTH