The weak acid pH between 6.7-6.9 has been reported the optimal for activity of cellulolytic
bacteria namely Ruminococcus albus, Ruminococcus flavefaciens, Fibrobacter succinogenes.
In contrast, when the medium is selective, a new barrier is added, making the potential number of bacterial strains smaller; thus, the amount of some bacterial groups in the treated group was not significantly higher than that of the control group despite the observed trend for Vibrio, Bacillus and cellulolytic
Isolation of Cellulose-Degrading Actinomycetes and Evaluation of Their Cellulolytic
In the present study, we analyzed and compared the cellulolytic
ability of 22 white-rot fungi, isolated from woody materials collected from the subtropical rainforest of the province of Misiones, Argentina, grown on agar medium supplemented with either sodium carboxy-methylcellulose (CMC) or crystalline cellulose (CC).
For the municipalities in the Magdalena Medio subregion, the numbers of heterotrophic bacteria, cellulolytic
bacteria, and Actinobacteria were higher on average in the municipalities of Puerto Berrio and Puerto Nare, with 1.7 x [10.sup.5], 3.0 x [10.sup.5], and 3.3 x [10.sup.3] CFU/g of dry soil, respectively, compared to the population densities obtained in the municipality of Puerto Triunfo, with 5.0 x [10.sup.4], 2.0 x [10.sup.4], and 1.0 x [10.sup.1] CFU/g of dry soil, respectively.
In the presence of readily metabolizable carbon sources, such as glucose, the fungus represses the genes accountable for the expression of cellulolytic
enzymes as a way of saving energy, while in the presence of inductive carbon sources, such as cellobiose and sophorose, the fungus activates the cellulase production.
Hkansson, U., F gerstam, L., Petterson, G., and Andersson, L., "Purification and characterization of a low molecular weight 1, 4-[beta]-glucan glucanohydrolase from the cellulolytic
fungus Trichoderma viride QM 9414," Biochimica et Biophysica Acta (BBA)-Enzymology, 524(2), 385-392 (1978).
Kouno, Evaluation of Cellulolytic
and Hemicellulolytic Abilities of Fungi Isolated from Coffee Residue and Sawdust Composts, Microbes Environ., 26, 220 (2011).
(2014) described fungi with cellulolytic
activity, which were isolated from a subtropical and tropical forest in China and mostly from the genus Penicillium.
enzymes have shown their potential application in various industries including pulp and paper, textile, bioethanol, wine, brewery, olive oil, carotenoid, feedstuffs, detergents and waste management.