Comparison of Cellulose Extraction from Sugarcane Bagasse Through Alkali

Mzimela, Zimele Nkosivele Treasure; Linganiso, Linda Z.; Revaprasadu, Neerish; Motaung, T.E.

doi:10.1590/1980-5373-mr-2017-0750

Cited by 33 publications

(20 citation statements)

References 23 publications

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“…The alkaline treatment on the sugarcane fiber removed the wax and weakened the structure of cellulose, hemicellulose, lignin, and other unknown structures on the surface, which contributed to the opening of bigger pore structures and enhanced the composite properties. Similar images for untreated and treated sugarcane bagasse can be seen inRezende et al (2011) andMzimela et al (2018).…”

supporting

confidence: 58%

Comparative study of fly ash/sugarcane fiber reinforced polymer composites properties

Jayamani

Rahman

Benhur

et al. 2020

BioRes

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This paper discusses mechanical, morphological, infrared spectral, and thermal properties of fly ash/sugarcane fiber reinforced epoxy polymer composites. Samples were prepared with and without the addition of 2 wt% of fly ash. Sugarcane fiber additions were varied from 0 wt% to 10 wt% (with an increment of 2 wt% for each sample), while the epoxy was used as a binder. A comparative study of these properties was completed on samples with and without the addition of fly ash in the composites. Based on the results obtained, the addition of 2 wt% of fly ash improved the tensile strength and hardness properties but reduced the flexural strength of the composites. Additions of fly ash reduced bubble or void formation in the composites, while toughening the composites and improving adhesion between the fiber and matrix. Samples with 4 w% of fiber and 2 wt% of fly ash composites showed high tensile strength and hardness properties, while 2 wt% of fiber composites showed high flexural strength.

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supporting

confidence: 58%

Comparative study of fly ash/sugarcane fiber reinforced polymer composites properties

Jayamani

Rahman

Benhur

et al. 2020

BioRes

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“…The spectral bands at 1155 cm -1 and 1118 cm -1 are due to the C-C stretching in cellulose and C-OH skeletal vibration in lignin respectively [22]. The peak observed at 892 cm -1 shows the presence of -glycosidic linkages in cellulose [23]. The appearance of the new small spectral band at 1205 cm -1 in nanocellulose is due to the presence of S=O vibration after the acid hydrolysis process [24].…”

Section: Functional Group Analysismentioning

confidence: 99%

Extraction and Characterization of Nanocellulose from Eragrostis Teff Straw

Bacha¹,

Demsash²

2021

Preprint

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This work presents the extraction and characterization of nanocellulose from agricultural waste (Eragrostis Teff) straw. The proximate analysis of the straw was done with three triplicates and the average value was recorded. The moisture, ash, volatile matter, and fixed carbon content were 6.4%, 5.1%, 74.2%, and 15.6%, respectively. The extractives, lignin, hemicellulose, and cellulose content were found to be 8.5%, 17.5%, 29.5%, 36.5%, respectively. The cellulose was extracted from teff straw by hot water treatment, acid-chlorite delignification, and alkaline hydrolysis process respectively. The values of process parameters such as temperature, time, and sodium hydroxide concentration for alkaline hydrolysis were 57.6 \(℃\) , 1hour, and 4(w/v) % respectively to obtain a cellulose yield of 78.7%. The nano cellulose particles were extracted from the cellulose by acid hydrolysis process (48%v/v sulfuric acid) at 35\(℃\) for 30 min and the yield was 42.8%. The characterization of nano cellulose was done by using Fourier-transform infrared spectroscopy, dynamic light scattering, x-ray diffraction, and thermogravimetry analysis/ derivative thermogravimetry analysis to determine the functional group, particle size distribution, crystallinity, and thermal stability respectively. The Fourier-transform infrared spectroscopy result shows that the reduction and total removal of lignin, hemicellulose, and other amorphous parts found in teff straw. The average particle size was found to be 101.6 nm with a polydispersity index of 0.047. The crystallinity index of teff straw and nano cellulose was 47.7 and 77.1% respectively. The thermogravimetry analysis shows the thermal stability of the nanocellulose sample was lower than that of cellulose and teff straw samples.

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“…Cellulose comes from different sources, such as paper pulp, cotton fibers, linen, coconut fibers, and bamboo (12). The extraction of cellulose is complicated because it is embedded within a hemicellulose-lignin matrix (13). Alternative sources of cellulose are specific microbial communities that produce highly pure cellulose, compared with vegetal sources (14).…”

Section: Introductionmentioning

confidence: 99%

Composite of polylactic acid and microcellulose from kombucha membranes

et al. 2020

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Polylactic acid (PLA) is one of the main components of biodegradable and biocompatible composites. Bacterial cellulose from kombucha membranes is an excellent candidate to be used as a natural filler of eco-composites because it is renewable, has low cost, low density, and acceptable specific strength properties, and is biodegradable. The study aimed to prepare composites of PLA and bacterial cellulose to produce a biodegradable and compostable material. The bacterial microcellulose was obtained from kombucha membranes and blended with PLA by extrusion. The composites contained a PLA with 1%, 3%, and 5% of cellulose. We characterized the PLA, bacterial microcellulose, and composites to ascertain their size and aspect, degree of crystallinity, distribution of the cellulose into PLA, and their mechanical properties. We observed an increase in crystallinity proportional to the cellulose content for the blends and found that the 3% cellulose blend withstands the stress of up to 40 MPa and temperatures up to 120°C before distortion.

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Comparison of Cellulose Extraction from Sugarcane Bagasse Through Alkali

Cited by 33 publications

References 23 publications

Comparative study of fly ash/sugarcane fiber reinforced polymer composites properties

Comparative study of fly ash/sugarcane fiber reinforced polymer composites properties

Extraction and Characterization of Nanocellulose from Eragrostis Teff Straw

Composite of polylactic acid and microcellulose from kombucha membranes

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