Nonconventional process for tobacco pulp production
2003
Agrupis, C.S. | Castro, U.N. | Dugay, D.M. | Aganon, W.A. | Pitpit, L.D. | Fabi, A.D. (National Tobacco Administration, Quezon City (Philippines))
A cleaner technology of producing tobacco pulp for the handmade paper industry was developed. This nonconventional process uses both mechanical and biological treatments. This technology generated zero chemical effluents. The mechanical treatment involved the mechanical defibrillation of the tobacco stalk. Known lignin degrading fungi were used, namely, Pleurotus ostreatus, Pleurotus chrysosporium, Trametes versicolor and Coriolus vensicolor. The growth media used was the modified cassava-rice water nutrient media (CRWNM). The nonconventional bleaching developed, involved the use of biological and indigenous bleaching agents. The two fungi used were T. versicolor and Phanerochaete chrysosporium, while the indigenous bleaching agents were lime, detergents, and camias juice. The pulp yield (67-89% on dry stalk material) obtained through the nonconventional process was remarkably higher than that of the conventional processes. The biochemical process showed a marked increase in the cellulose content due to mycelial hyphanation of the fungi. The improvised nutrient medium was very effective in substituting the commercial potato dextrose broth (PDB) medium. The biological and indigenous bleaching agents were effective in brightening the tobacco stalk pulp. The brightness of the pulp was comparable wih the conventionally bleached pulp
Показать больше [+] Меньше [-]