کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
677155 | 1459847 | 2012 | 8 صفحه PDF | دانلود رایگان |
Response surface methodology (RSM) was employed to optimize alkaline pretreatment condition for maximum glucose yield of rice straw with respect to NaOH concentration (1.0–4.0%), reaction temperature (60−100 °C) and pretreatment time (30−90 min). The maximum glucose yield of 254.5 ± 1.2 g kg−1 biomass was obtained at the desirable pretreatment condition of 2.96%, 81.79 °C and 56.66 min. The ANOVA test revealed that the model and all independent parameters were considered statistically significant at 95% confidence level. Furthermore, we tried to explore the effect of ultrasonication on alkaline pretreatment. The sample treated with both NaOH and ultrasound at high power showed a slightly higher digestibility yield than the sample with NaOH at 80 °C, but the difference was not significant.
► RSM was applied to optimize alkaline pretreatment condition for maximum glucose yield of rice straw.
► NaOH concentration, reaction temperature, and pretreatment time were used as key factors to obtain the highest glucose yield.
► Sonication combined with alkaline pretreatment found to have a minimal impact on the improvement of enzymatic digestibility.
Journal: Biomass and Bioenergy - Volume 46, November 2012, Pages 210–217