Optimization of Alkaline Pretreatment for Enzymatic Saccharification of Poppy Stalks
BIORESOURCES, cilt.9, sa.2, ss.2824-2834, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 9 Sayı: 2
- Basım Tarihi: 2014
- Doi Numarası: 10.15376/biores.9.2.2824-2834
- Dergi Adı: BIORESOURCES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2824-2834
- Anahtar Kelimeler: Poppy stalks, Alkaline pretreatment, Enzymatic saccharification, Optimization, LIGNOCELLULOSIC BIOMASS, EXTRUSION PRETREATMENT, ETHANOL-PRODUCTION, SODIUM-HYDROXIDE, STRAW, HYDROLYSIS, HEMICELLULOSES, TECHNOLOGIES, PEROXIDE, POPLAR
- Anadolu Üniversitesi Adresli: Evet
Özet
Response surface methodology (RSM) was employed to optimize dilute alkaline pretreatment conditions for the maximum glucose yield of poppy stalk, with respect to NaOH concentration (1.0 to 3.5%, w/v), pretreatment temperature (50 to 100 degrees C), and pretreatment time (10 to 110 min). Recovery of glucan ranged from 61.02% to 99.14%, based on the initial glucan in the raw material. The highest lignin removal (43.43%) was obtained at the pretreatment conditions of 90 degrees C and 3.50% NaOH for 90 min. The optimum pretreatment conditions for maximum glucose yield after enzymatic hydrolysis were found to be 2.40% w/v NaOH, 70 min, and 80 degrees C. Under these conditions, experimental glucose and xylose yields were 499.35 mg/g glucan and 498.66 mg xylose/g xylan, respectively.