بررسي امكان توليد خمير بيوسودا از باگاس نيشكر

Bio - Soda Pulping of Bagasse

Sugar cane bagasse is an alternative non-wood source of fiber for producing various grades of paper. In this study, a biotechnological approach was employed applied as pretreatment to produce pulp from bagasse. Bagasse from Khouzestan was treated with selected white-rot fungus, namely Ceriporiopsis subvermispora L-14807 in non-sterile conditions (temperature=27° C and relative humidity = 85-90%) . Then, both pretreated and control samples were digested using 14,16 and 18% alkali for 15 and 20 min. It was found that as a result of fungal pretreatment, kappa number decreased significantly (from 23.7 to 20.9) while yield loss being also observed (from 58.7% to 55/9%). Meanwhile, the results also indicated that fungal pretreatment improved paper burst as well as tensile strength, but reduced folding endurance. Optimum bio-pulp (high burst and high tensile strength) could be obtained by cooking fungal pretreated bagasse fibers for 15 min at an alkali concentration of 16% .