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Parthenium hysterophorus L commonly known as Parthenium weed is one of the seven obnoxious weed in the world. Being a lignocellulosic biomass, with a composition of Lignin: 13.9%; Hemicellulose: 21.01% and Cellulose: 27.8%, it may be considered as the potential source of fuel ethanol production though pretreatment, saccharification and fermentation route. In the present work, efforts have been made to increase the yield of xylose during the hydrolysis process. Hydrolysis of Parthenium hysterophorus was carried out with 1%, 3% & 5% H2SO4 solutions. Each set of biomass was allowed to soak for 1 h & 2 h for each acid concentration. Finally the substrates were treated for up to 10 min in the temperature range of 190 230 C. The xylose yield has been studied for every set of parameters. The maximum value of xylose yield obtained is 46.41 mg/g of dry Parthenium, when hydrolysed with 5% H2SO4 at a temperature of 230 C in 2 h soaking time and 10 min treatment time. The values of kinetic rate constants show the adherence to Arrhenius relationship with significant changes in the concentration of acid and soaking period.

Kinetic Study of the Acid Hydrolysis of Parthenium hysterophorus L. for xylose yield in the Production of Lignocellulosic ethanol