Chemistry

Materials science

Engineering

Cellulase

Crystallography

Organic chemistry

Artocarpus

Biology

Crystallinity

Acid hydrolysis

Hemicellulose

Cellulose

Lignin

Botany

Nuclear chemistry

Sodium hydroxide

Chemical engineering

Hydrolysis

Fourier transform infrared spectroscopy

Scientific Reports

In the present work, sustainable nanomaterials, cellulose, and spherical cellulose nanocrystals (SCNCs) were isolated from the non-edible parts of jackfruit ( Artocarpus heterophyllus) . Of the three different methods tested, sodium chlorite treatment produced the highest yield of cellulose, 20.08 ± 0.05% w/w (dry weight). Peaks observed in CP/MAS 13 C NMR spectrum and FTIR frequencies revealed the presence of α-cellulose and absence of other biomass fractions like hemicellulose and lignin. XRD analysis showed a high crystallinity of 83.42%. An appearance of a sharp endothermal peak at 323 °C in DSC and decomposition patterns between 310–420 °C of TGA confirms the presence of cellulose. Further, Sulphuric acid hydrolysis was employed to produce SCNCs and examined by TEM for the morphology and by HPLC for the presence of glucose.

Isolation and characterization of cellulose nanocrystals from jackfruit peel