Optimization of acidic hydrolysis conditions of rice husk for fermentable sugar production

Germec M., Ilgin M., İlhan E., TURHAN İ.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.38, sa.20, ss.3103-3108, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 20
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1080/15567036.2015.1135211
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3103-3108
  • Anahtar Kelimeler: Chemical composition, hydrolysis, one-factor-at-a-time, reducing sugar, rice husk, HULL HYDROLYSATE, PRETREATMENT, BIOETHANOL, ETHANOL, REAGENT
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Lignocellulosic biomass (LSB) is the most abundantly available renewable source in the world. Rice husk (RH) is also one of the LSB. In this study, the optimization of dilute acid hydrolysis conditions of RH by using one-factor-at-a-time method was performed. The optimum hydrolysis conditions of RH were determined as 131.04 degrees C, 1:10.28 (w/v) of solid:liquid ratio, 1.47% (w/v) of acid ratio and 24.05 min, which yielded as 25.52 g/L of fermentable sugar concentration. Furthermore, the chemical composition of hydrolysate was also examined and the levels of phenolics, 5-hydroxymethylfurfural (HMF), acetate, glucose, and fructose+xylose were found as 0.89, 0, 3.27, 2.10, and 13.80 g/L, respectively. Accordingly, RH can be utilized as a favorable feedstock for the production of value-added products.