TAILIEUCHUNG - Effect of potassium hydroxide (KOH) pretreatment on solids recovery, delignification and total sugars of cotton stalk

Bioethanol is one of the promising alternative fuels to gasoline in the transport sector. Ethanol may be produced either from petroleum products or from biomass. In the world around 80% of the ethanol produced is still obtained from fermentation and the reminder comes largely by synthesis from the petroleum product ethylene (Tanaka, 2006). Cotton stalks have been regarded as potential sources for cellulosic ethanol production owing to their high cellulose content being almost 37% (Binod et al., 2012). Hence, there is a need of utilizing available biomass resources for production of ethanol to reach energy demand. Compounding the challenges is the fact that the country lacks mature technologies for ethanol production from lignocellulosic biomass which is by far the most abundant renewable resource that may be exploited (Lynd et al., 2002; Zhang, 2008). The goal of the pretreatment process is to remove lignin and hemicellulose, reduce the crystallinity of cellulose, and increase the porosity of the lignocellulosic materials. This study is aimed at investigating the effect of potassium hydroxide (KOH) on cotton stalks for optimization of pre-treatment conditions on solids recovery, delignification and total sugars. Potassium hydroxide (KOH) pre-treatment was performed at 50 °C, 70 °C with residence times of 6, 12, and 24 h and 120 °C with residence times of , and 1 h each. | Effect of potassium hydroxide (KOH) pretreatment on solids recovery, delignification and total sugars of cotton stalk

• Sinh học
• Cotton stalk
• Potassium hydroxide
• Delignification and total sugars
• Pretreatment on solids recovery
• Potassium hydroxide
• Cotton stalk incorporation
• Recommended dose of fertilizer
• Decomposing michorhiza
• Cotton crop residue
• Sustainable cotton production in vertisols
• Crop residues on yield
• Organic sources
• Seed cotton yield
• Cotton stalk yield
• Quality of cotton
• Response of nitrogen
• Fertilizer regimes
• Plant density
• Stalk yield
• Weather variability
• Sugarcane and cotton
• Byproducts of sugarcane
• Predominant commercial crop
• Billion tonnes
• Byproducts of cotton include stalk
• Nitro phosphosulpho compost
• Rock phosphate
• Wheat straw
• Shredded cotton stalk
• Improving quality of enrich compost
• Mean pH
• Mean ulcer index
• Acute potassium hydroxide poisoning
• Potassium hydroxide in adult male albino rats
• Oral ingestion of honey
• Journal of Science and Technology
• Surface methodology approach
• The potassium hydroxide
• The response surface methodology
• The adsorption parameters
• Hexavalent chromium
• Pseudomonas sp
• C 171
• Chromium hydroxide
• Cell elongation
• Potassium dichromate
• Benzofuran moiety
• Ethyl chloroacetate
• Oxadiazole derivatives
• Hydrazine hydrate
• Benzofuran 2 carbohydrazide 3
• Carbon disulfide