Azam Jeihanipour

TL;DR: Alkaline pretreatment with NaOH under mild operating conditions was used to improve ethanol and biogas production from softwood spruce and hardwood birch as discussed by the authors, which resulted in significant reduction of hemicellulose and the crystallinity of cellulose, which might be responsible for improved enzymatic hydrolyses of birch from 6.9% to 82.3%.

TL;DR: Higher concentration of NaOH resulted in a better yield of the hydrolysis, whereas temperature had a reverse effect and better results were obtained at lower temperature.

TL;DR: Alkaline pretreatment with NaOH was used to improve biogas production from softwood pine in this paper, and the best improvement was achieved by the treatment at 100°C for 10min, which resulted in 181.2% improvement in the methane production yield.

TL;DR: An environmentally friendly cellulose solvent, N-methylmorpholine-N-oxide (NMMO) was used in this process for separation and pretreatment of the cellulose, which resulted in a significant increase of the biogas production rate.

TL;DR: No cellulose loss, ambient pressure, relatively moderate conditions, and high efficiency make the NMO a good alternative for pretreatment of high‐crystalline cellulosic materials.