Comparative Efficiency of Lignocellulolytic Fungi for Bioconversion of Coirpith
By: Reeja R S.
Contributor(s): Lulu Das (Guide).
Material type:
BookPublisher: Vellayani Department of Plant Pathology, College of Agriculture 2002DDC classification: 632.3 Online resources: Click here to access online Dissertation note: MSc Abstract: Nine lignocellulolytic fungi, of which SIX viz., Pleurotus eous,
P. squarrosulus, two strains of Calocybe indica, Schizophyllum commune
and Coprinus comatus collected from Thiruvananthapuram district as a
part of the study entitled "Comparative efficiency of lignocellulolytic
fungi for bioconversion of coirpith" and three from AfCRP Centre on
Mushrooms, College of Agriculture, Vellayani were used to find out their
ability to decompose coirpith.
All these fungi preferred natural media such as Oatmeal Agar and
Potato Dextrose Agar, a temperature range of 25 -. 35°C and neutral to
acidic pH for their optimum growth. , '
I
In vitro studies were conducted to find out the efficient strains. Pre
and post composting physico-chemical analysis were carried out. Coirpith
was found to be acidic in nature. EC of non retted coirpith was very high.
Ability of these fungi in degrading organic carbon, cellulose and lignin
thereby narrowing down the C : N ratio and increasing the nutrient status
were found out.
Field level trials using P. eous, P. squarrosulus, P. sajor-caju,
P. florida, C. indica-Z and S. commune revealed that all these fungi could
efficiently degrade coirpith, Better degradation of retted and non retted
coirpith was observed when they were inoculated with lignocellulolytic
fungi for 45 days.
Maximum reduction in organic carbon and C : N ratio was brought
about by P. eous and S. commune in non retted coirpith. Higher
concentration of nitrogen was observed in retted coirpith inoculated with
the same fungi.
The phosphorus content was maximum m non retted coirpith
inoculated with P. eous, C. indica-Z; S. commune and P. squarrosulus.
Maximum potassium content was observed In non retted coirpith treated
with P. eous and P. sajor-caju.
P. eous and P. sajor-caju treated retted coirpith brought about
maximum reduction in cellulose, while lignin degradation was maximum
for P. sajor-caju and P. eous treated non retted coirpith.
P. eous brought about the maximum reduction in weight of retted
and non retted coirpith, while maximum volume reductioh was noticed in
retted and non retted coirpith inoculated with P. eous and S. commune
respectively.
The final compost was dark brown in colour with low levels of
organic carbon, cellulose, lignin, narrow C : N ratio and with increased
nutrient status.
The results of the experiment clearly showed that P. eous, P. sajor-
caju and S. commune are efficient decomposers of coirpith.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 632.3 REE/CO (Browse shelf) | Available | 171980 |
MSc
Nine lignocellulolytic fungi, of which SIX viz., Pleurotus eous,
P. squarrosulus, two strains of Calocybe indica, Schizophyllum commune
and Coprinus comatus collected from Thiruvananthapuram district as a
part of the study entitled "Comparative efficiency of lignocellulolytic
fungi for bioconversion of coirpith" and three from AfCRP Centre on
Mushrooms, College of Agriculture, Vellayani were used to find out their
ability to decompose coirpith.
All these fungi preferred natural media such as Oatmeal Agar and
Potato Dextrose Agar, a temperature range of 25 -. 35°C and neutral to
acidic pH for their optimum growth. , '
I
In vitro studies were conducted to find out the efficient strains. Pre
and post composting physico-chemical analysis were carried out. Coirpith
was found to be acidic in nature. EC of non retted coirpith was very high.
Ability of these fungi in degrading organic carbon, cellulose and lignin
thereby narrowing down the C : N ratio and increasing the nutrient status
were found out.
Field level trials using P. eous, P. squarrosulus, P. sajor-caju,
P. florida, C. indica-Z and S. commune revealed that all these fungi could
efficiently degrade coirpith, Better degradation of retted and non retted
coirpith was observed when they were inoculated with lignocellulolytic
fungi for 45 days.
Maximum reduction in organic carbon and C : N ratio was brought
about by P. eous and S. commune in non retted coirpith. Higher
concentration of nitrogen was observed in retted coirpith inoculated with
the same fungi.
The phosphorus content was maximum m non retted coirpith
inoculated with P. eous, C. indica-Z; S. commune and P. squarrosulus.
Maximum potassium content was observed In non retted coirpith treated
with P. eous and P. sajor-caju.
P. eous and P. sajor-caju treated retted coirpith brought about
maximum reduction in cellulose, while lignin degradation was maximum
for P. sajor-caju and P. eous treated non retted coirpith.
P. eous brought about the maximum reduction in weight of retted
and non retted coirpith, while maximum volume reductioh was noticed in
retted and non retted coirpith inoculated with P. eous and S. commune
respectively.
The final compost was dark brown in colour with low levels of
organic carbon, cellulose, lignin, narrow C : N ratio and with increased
nutrient status.
The results of the experiment clearly showed that P. eous, P. sajor-
caju and S. commune are efficient decomposers of coirpith.
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