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Full-Text Articles in Forest Sciences
Beneficial Effects Of Fungal Treatment Before Pulping And Bleaching Of Acacia Mangium And Eucalyptus Camaldulensis, Md. Nazrul Islam, Md. Rezaul Karim, Raimo O. Malinen
Beneficial Effects Of Fungal Treatment Before Pulping And Bleaching Of Acacia Mangium And Eucalyptus Camaldulensis, Md. Nazrul Islam, Md. Rezaul Karim, Raimo O. Malinen
Turkish Journal of Agriculture and Forestry
Three white-rot fungi (Ceriporiopsis subvermispora (Pilát) Gilb. & Ryvarden, Phanerochate chrysosporium Burds, and Trametes (Coriolus) versicolor (L.) Lloyd) were tested for their ability to modify/degrade lignin in cooking and bleaching. Both chips and pulps of Acacia mangium Willd. and Eucalyptus camaldulensis Dehn. were pretreated with these white-rot fungi for different time periods (8, 12, and 16 days for chips; and 4, 8, and 12 days for pulps). For chip pretreatment, Kappa number decreased with the increase of fungal treatment time, and the maximum reduction in Kappa number was 28% and 25% for acacia and eucalyptus, respectively, after 16 days of …
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Turkish Journal of Agriculture and Forestry
Different pulping processes, kraft-anthraquinone (AQ), bio-kraft, soda-AQ, ALCELL, and FORMACELL were studied for wheat straw. Fungal pre-treatment with Ceriporiopsis subvermispora, white rot fungi, was applied to wheat straw before kraft-AQ pulping, the so-called bio-kraft process. Fiber properties, carbohydrate contents, FT-IR analyses, strength properties of resultant paper, and bleachability characteristics were included to determine the properties of these pulp samples. In addition, the effects of the xylanase pre-treatment on the subsequent Elemental Chlorine Free (ECF) bleaching process were investigated. The results indicated that kraft-AQ pulps from wheat straw exhibited better characteristics than the other pulp samples with lower kappa number, higher …