Rice Straw Degradation with White Rot Fungi and Cellulose Multienzyme Produced by Aspergillus niger
- VernacularTitle:白腐菌及黑曲霉所产的纤维素复合酶对稻草秸秆的生物降解
- Author:
Lin-Guo ZHAO
;
Yao-Guang JIN
;
Qiang LI
;
Bo-Sheng XU
;
- Publication Type:Journal Article
- Keywords:
Biodegradation Rice straw White rot fungi Multienzyme
- From:
China Biotechnology
2006;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Rice straw degradation with white rot fungi and cellulose multienzyme was studied. The results indicated that the LiP, MnP activity produced by P. chrysosoporium 172 could reach 28.3U/g and 12.6U/g respectively under suitable culture condition. And the lignin was degraded efficiently in contrast with the cellulose and hemicellulose in rice straw solid fermentation. Following treatment with white rot fungi, using multienzyme produced by A. niger NL-1 could greatly accelerate the decomposition of rice straw. The decomposition rate of cellulose, hemicellulose, lignin and the loss rate of dry material were 53.8%,57.8%,44.5% and 46.3% respectivity when hydrolysis rice straw 48h with cellulase multienzyme (including 3 IU /g rice straw) after culture P. chrysosoporium 172 for 10 days. Scanning electron microscope analysis showed the cell wall of rice straw was destroyed severely, and the whole tissue got loosely. These results demonstrated the rice straw had been decomposed efficiently and completely.
