Hemicellulose hydrolyzate contains many carbohydrate
fractions, the most abundant being xylose, arabinose, and
glucuronic acid. Under mild acid conditions (0.025 -
0.10 M sulfuric acid) and high temperatures (140°C to
200°C) the first two components form furfural through a
series of dehydration reactions. Unlike xylose and
arabinose, glucuronic acid must...
Cellulosic biomass materials have three principal
components: cellulose, hemicellulose, and lignin. Under
mild acid conditions and high temperature, the first two
components yield a variety of sugars: hexoses and pentoses,
which are subject to decomposition on continued exposure to
hot dilute acid. In the process hexoses yield
hydroxymethylfurfural (HMF) which,...