A Comparative Study of Maize and Miscanthus Regarding Cell-Wall Composition and Stem Anatomy for Conversion into Bioethanol and Polymer Composites

Due to an increasing demand for environmentally sustainable products, miscanthus and maize stover represent interesting lignocellulosic resources conversion into biofuels biomaterials. The overall purpose was compare regarding cell-wall composition stem anatomy bioethanol polymer composites using partial least squares regressions. For each of the two crops, six contrasted genotypes were cultivated in complete block design, harvested. Internodes below main cob maize, on first aboveground internode miscanthus, analyzed biochemistry anatomy. Their digestibility predicted crop-specific near infrared calibrations, mechanical properties evaluated stem-based composites. On average, cross-section characterized by a thick rind (26.2%) few but dense pith-bundles (3.5 nb/mm2), while constituted 95.2% dry matter with high lignin (243.2 mg/g) cellulose concentrations (439.7 mg/g). Maize internode-anatomy showed large cross-sections (397.5 mm2), pith presence numerous bundles non-lignified-pith fractions (22.3% section). Its displayed hemicelluloses, galactose, arabinose, xylose, ferulic acid. Cell-wall, lignin, positively correlated rind-fraction pith-bundle-density, which explained strong as shown miscanthus. Hemicelluloses, acid fraction cross-section, revealing maize. This underlines traits further comparative genetic studies, represents good model