ENZYMATIC HYDROLYSIS OF SUGARCANE BAGASSE PRE-TREATED BY ALKALINE SOLUTION IN FLUIDIZED BED REACTOR

• Palavras-chave: Atena

• Keywords: sugarcane bagasse, enzymatic hydrolysis, alkaline pretreatment, fluidized bed reactor.

• Abstract:

  Alkaline pretreatment is an

  efficient method that solubilize lignin of

  biomass, becoming a more accessible material

  to the action of enzymes that could breakdown

  remaining polymeric carbohydrates of its

  content in fermentable sugars, for use, e.g.,

  as carbon source in bioprocess. Moreover,

  in Brazil, sugarcane bagasse is one of the

  most generated lignocellulosic material, due

  to the high production of alcohol and sugar

  industries that use sugarcane juice as carbon

  source. Within this context, this work presents

  enzymatic hydrolysis of sugarcane bagasse

  pre-treated by alkaline solution in fluidized bed

  reactor. Biomass was pretreated in bioreactor

  by fluidization conducted by recirculation of

  sodium hydroxide solution. After hydrolysis,

  solid portion was washed, dried and submitted

  to enzymatic saccharification. Results showed

  that enzymes could act significantly better in the

  pre-treated material, compared to a non pretreated

  raw material, presenting hydrolysate of

  9,51 g/L of xylose and 21,4g/L of glucose .

• Número de páginas: 15