Comprehensive
Characterization of Lignocellulosic Biomass and their effective Delignification
for Sustainable Bioenergy
Rabi Prasad B., Suman Polaki, Padhi R.K. and Das Manoja
Res. J. Chem. Environ.; Vol. 28(1); 57-67;
doi: https://doi.org/10.25303/281rjce57067; (2024)
Abstract
The study provides a thorough examination of the biofuel potential of three unique
lignocellulosic crop residues: rice straw (Oryza sativa), corn stalk (Zea mays)
and sugarcane bagasse (Saccharum officinarum) of Odisha. In the investigation, we
explored the compositional, thermal and structural characteristics of these biomass
sources, shedding light on their suitability for sustainable bioenergy production.
Proximate analysis indicated variances in critical factors in the range of 5.9-14.8%
(moisture content), 1.8-19.4% (ash content), 60-72.4% (volatile matter) and 9.6-14.7%
(fixed carbon) which contribute to the various energy generating capacities of these
materials. An in-depth investigation of cellulose, hemicellulose and lignin concentration
revealed the promise of sugarcane bagasse as a cellulose-rich option for bioethanol
synthesis.
Thermochemical profiling using thermogravimetric and FTIR analysis revealed information
about thermal stability and chemical changes, with pretreatment having an important
role in increasing biomass accessibility and crystallinity. The significance of
pretreatment-induced crystallinity for effective enzymatic hydrolysis and fermentable
sugar generation was highlighted by X-ray diffraction (XRD) . Overall, this study
advances our understanding of the intricate relationships between biomass composition,
structure and bioenergy potential, offering valuable insights for the development
of sustainable biofuel production strategies.
