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Materials (Basel). 2016 Jul 11;9(7). pii: E562. doi: 10.3390/ma9070562.

Enrichment of Cellulosic Waste Hemp (Cannabis sativa) Hurd into Non-Toxic Microfibres.

Author information

1
Centre for Chemistry and Biotechnology, School of Life and Environment Science, Deakin University, Waurn Ponds, Geelong 3217, Australia. r.abraham@deakin.edu.au.
2
Institute for Frontier Materials, Geelong Technology Precinct, Deakin University, Geelong 3217, Australia. cynthia.wong@deakin.edu.au.
3
Centre for Chemistry and Biotechnology, School of Life and Environment Science, Deakin University, Waurn Ponds, Geelong 3217, Australia. munish.puri@deakin.edu.au.
4
Bioprocessing Laboratory, CCB, Deakin University, Geelong3217, Australia. munish.puri@deakin.edu.au.

Abstract

In this study a largely available lignocellulose feedstock hemp (Cannabis sativa), obtained as an industrial waste, was used for cellulose extraction. The extraction of cellulose microfibres from hemp biomass was conducted by alkaline treatment and an acidification process. The extracted cellulose microfibres were characterised using Fourier-transformed infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and X-ray diffraction (XRD). The viability of the study was determined by growing human fibroblasts on the preparation which resulted in being non-toxic; indicating its potential in preparing biological scaffolds. Upon enzymatic hydrolysis of the cellulose microfibre using cellulase from Trichoderma reesei, a maximum of 909 mg/g of reducing sugars were obtained, which endorses its suitability for biofuel production.

KEYWORDS:

alkaline treatment; cellulose; human fibroblasts; scaffolds; valuables

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