Isolation and characterization of cellulose and α-cellulose from date palm biomass waste

Abstract

Towards the utilization of different parts of date palm biomass waste, low-concentration acid-alkali treatment was used to isolate the contained cellulose and α-cellulose. The cellulose yields achieved from the rachis, leaflet, and fiber parts of the biomass were 74.70%, 71.50%, and 73.82%, respectively, while the corresponding α-cellulose yields were 78.63%, 75.64%, and 70.40%, respectively. The cellulose samples were bleached and characterized by thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). The XRD results revealed high crystallinity of both the cellulose and α-cellulose samples, while the TGA thermograms indicated that the alkali treatment completely removed lignin and hemicelluloses from the rachis. The results of this study demonstrate the promise of using date palm biomass waste as raw material to produce cellulose and α-cellulose.

Preparation and characterization of cellulose nanocrystal extracted from ramie fibers by sulfuric acid hydrolysis

“…CNCs can be isolated from various agro-industrial wastes. In the literature, CNCs have been prepared from many different resources such as wheat straw [7], sisal [8], pineapple leaves [9], coconut husk fibers [10], banana [11], sugarcane bagasse [12], bamboo [13], mengkuang leaves [14], rice straw [15], cotton linter [16], kenaf bast [17], corn husk [18], Acacia mangium [19], oil palm fronds [20], doum leaves [21], cassava bagasse [22], sugar palm fibers [23], apple pomace [3], cotton pulp [24] and date palm [25]. Ramie fiber is a potential source of cellulose to produce CNC due to its high cellulose (72.68%), hemicellulose (13.70%), and very low contents of lignin (0.38%) [26].…”

Characterisation and composition identification of waste-derived fuels obtained from municipal solid waste using thermogravimetry: A review

“…For example, commercial cellulose widely used for experimentation (e.g. microcrystalline cellulose and filter paper cellulose) has higher thermal stability and narrower DTG curves compared to cellulose isolated from biomass materials ( Galiwango et al, 2019 ; Zhang et al, 2018 ) due to different crystallinities ( Ramiah, 1970 ; Zhang et al., 2018 ). Xylan is more thermally resistant compared to glucomannan due to its different chemical composition, whereas the thermal stability of lignin depends on the isolation method ( Ramiah, 1970 ).…”

The Cell Wall of Seagrasses: Fascinating, Peculiar and a Blank Canvas for Future Research

“…(α-or β-cellulose) was determined. To gain more information on that, it is recommended to perform a fractionated extraction (Galiwango et al, 2019) and use the different solubility of both types in alkaline conditions.…”