Relationship Between Rumen Microbial Composition and Fibrolytic Isozyme Activity During the Biodegradation of Rice Straw Powder Using Rumen Fluid.

ABSTRACT: Rumen fibrolytic microorganisms have been used to increase the rate of lignocellulosic biomass biodegradation; however, the microbial and isozymatic characteristics of biodegradation remain unclear. Therefore, the present study investigated the relationship between rumen microorganisms and fibrolytic isozymes associated with lignocellulosic biomass hydrolysis. Rice straw, a widely available agricultural byproduct, was ground and used as a substrate. The biodegradation of rice straw powder was performed anaerobically in rumen fluid for 48 h. The results obtained revealed that 31.6 and 23.3% of cellulose and hemicellulose, respectively, were degraded. The total concentration of volatile fatty acids showed a 1.8-fold increase (from 85.4 to 151.6‍ ‍mM) in 48 h, and 1,230.1‍ ‍mL L^-1

SUBMITTER: Takizawa S 

PROVIDER: S-EPMC10522846 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature