Screening of indigenous pulpwood for paper production

Abstract
Thirteen tree species viz., Acrocarpus fraxinifolius, Albizia lebbek, Dalbergia paniculata, Dalbergia sissoo, Erythrinia indica, Grewia tillifolia, Gyrocarpus jacquinii, Melia dubia, Melia composite, Neolamarkia cadamba, Sterculia alata, Eucalyptus MTP1 (Control 1), TNAU Casuarina MTP 2 (Control 2) were subjected for physical and chemical analysis coupled with pulp yield in order to screen suitable for pulp and paper production. All the thirteen tree species exhibited considerable differences for physical, chemical and pulp yield investigated. Considering physical properties viz., bulk and basic density, all tree species were moderate to high in range which indicated for their suitability as pulpwood. Similarly chemical wood analysis of thirteen tree species indicated that the species differed due to chemical properties. In the proximate analysis, the lignin content was significant parameter which was also moderate for all the tree species and hence proved their suitability. The tree species differ significantly for holo-cellulose which constitutes the cellulose and hemi-cellulose which are essential factor for paper production. Considering this factor, among thirteen tree species investigated, the superiority of Melia dubia was evident due to maximum holo-cellulose content. The pulp yield and kappa number analysis indicated that the superiority of Melia dubia due to higher pulp yield and moderate kappa number.