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Full-Text Articles in Forest Sciences
Sustainable Approach To Produce Bioethanol From Karanja (Pongamia Pinnata) Oilseed Residue, Pooja Doshi, Gopal Srivastava
Sustainable Approach To Produce Bioethanol From Karanja (Pongamia Pinnata) Oilseed Residue, Pooja Doshi, Gopal Srivastava
Turkish Journal of Agriculture and Forestry
Agricultural biomass is the world's largest, most sustainable, and most promising renewable energy source. This study investigated the potential of Karanja (Pongamia pinnata) oilseed residual waste (defatted kernel, hull, and their mixture) as a source of ethanol. The pretreatment of the finely ground samples was carried out using dilute sulfuric acid (0.5%) hydrolysis at a higher temperature of 121 °C and 15 psi pressure for 90 min. The pretreatment usually removes the lignin and facilitates the hydrolysis of cellulose and hemicelluloses. They were further hydrolyzed using 5% H_2SO_4 at 50 °C for 70 h. The analyses of hydrolyzed products have …
Hydrolysis Of Polysaccharides With 77% Sulfuric Acid For Quantitative Saccharification, Güneş Uçar, Mualla Balaban
Hydrolysis Of Polysaccharides With 77% Sulfuric Acid For Quantitative Saccharification, Güneş Uçar, Mualla Balaban
Turkish Journal of Agriculture and Forestry
Classical standard hydrolysis of polysaccharides with 72% sulfuric acid was modified in 2 manners. In order to avoid treatment in an autoclave at 120 °C under pressure, wood or pulp material was first swollen in cold 77% acid followed by hydrolysis steps in diluted acid solutions. Further, the neutralization of the hydrolyzate with dilute barium hydroxide was carried out in heated mother liquor ensuring a crystalline precipitate of barium sulfate. Digestion enables the separation of clear aliquots by decantation in large amounts for analysis by HPLC. The modified procedure allows hydrolyses of polysaccharides with low losses as indicated by correction …