Extraction of cellulose nanofibrils from amylase-treated cassava bagasse using high-pressure homogenization

Panyasiri, Panee; Yingkamhaeng, Naiyasit; Lam, Nga Tien; Sukyai, Prakit

doi:10.1007/s10570-018-1686-6

Cited by 36 publications

(10 citation statements)

References 50 publications

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“…Several bleaching agents are available in the market, such as alkaline peroxide, sodium hypochlorite, and sodium chlorite, which are separated by filtration to obtain holocellulose, which is a raw material used for CNF. Hollocellulose can be directly processed to obtain CNF by using the grinding treatment [55,[69][70][71], high-pressure homogenization [57,[72][73][74], acid hydrolysis [54,56], enzymatic hydrolysis [41,75], and ultrasonication [67,76,77]. The second route is the bleaching process followed by TEMPO-mediated oxidation to isolate the CNF [68].…”

Section: Cnfmentioning

confidence: 99%

Biorefinery System of Lignocellulosic Biomass Using Steam Explosion

Asada¹,

Sholahuddin²,

Nakamura³

2021

Cellulose Science and Derivatives

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Recently, plant biomass has been attracting attention due to global warming and the depletion of fossil fuels. Lignocellulosic biomass (i.e., wood, straw, and bagasse) is attracting attention as an abundant renewable resource that does not compete with the food resources. It is composed of cellulose, hemicellulose, and lignin and is a potential resource that can be converted into high-value-added substances, such as biofuels, raw materials for chemical products, and cellulose nanofibers. However, due to its complicated structure, an appropriate pretreatment method is required for developing its biorefinery process. Steam explosion is one of the simplest and environmentally friendly pretreatments to decompose lignin structure, which converts cellulose into low-molecular-weight lignin with high efficiency. It has received significant attention in the field of not only biofuel but also biochemical production. Steam explosion involves the hydrolysis of plant biomass under high-pressure steam and the sudden release of steam pressure induces a shear force on the plant biomass. Moreover, it is a green technology that does not use any chemicals. Thus, a steam explosion-based biorefinery system is highly effective for the utilization of lignocellulosic into useful materials, such as ethanol, methane gas, antioxidant material, epoxy resin, and cellulose nanofiber.

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Section: Cnfmentioning

confidence: 99%

Biorefinery System of Lignocellulosic Biomass Using Steam Explosion

Asada¹,

Sholahuddin²,

Nakamura³

2021

Cellulose Science and Derivatives

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“…Characteristic peaks of lignocellulosic materials were observed for all samples. The peaks at 3370 cm -1 and 2900 cm -1 were associated with the stretching vibration of the OH and CH groups exist in the cellulose chains [19][20][21]. For the purified fibers, there was no detection of peak intensity at 1734 cm -1 for carbonyl C=O stretching vibrations of acetyl and uronic ester groups, indicating the removal of hemicellulose and the ester linkage of the carboxylic group of ferulic and ρ-coumaric acids of lignin or hemicellulose contained in the raw fibers [22].…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Extraction of cellulose nanofibers from empty palm fruit bunches via mechanical defibrillation

2021

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In recent years, there has been an increasing interest in finding alternative material to replace fossil-oil based product due to the environmental concern. Lignocellulosic biomass has emerged as the promising candidate due to its low-cost and sustainability. The objective of this work was to prepare cellulose nanofibers (CNFs) from empty palm fruit bunches (EPFB), which are the waste originating from palm oil industry. Cellulose fibers were first extracted from EPFB by chemical treatment, followed by mechanical disintegration using high-pressure homogenization. Fiber concentration and defibrillation time during mechanical treatment were studied to investigate their effects on the properties of produced nanofibers. The obtained micro- and nano-fibers were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), Thermogravimetric analyzer (TGA), Scanning electron microscope (SEM) and Transmission electron microscope (TEM). The results indicated that non-cellulosic components were successfully removed by chemical treatment, as evidenced by the disappearance of lignin and hemicellulose related peaks in FTIR analysis, reduction of their content in chemical composition result, and increase in the thermal stability for purified fibers. Moreover, TEM images and diameter distribution analysis revealed that fiber concentration of 0.5%w/v provided the best diameter size uniformity with the nanofiber’s diameter ranged 6 nm to16 nm, as compared to higher fiber concentration.

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“…Some examples are sisal, cotton, and flax fibers, corn stover and rice husk within others. [1][2][3] The content and physicochemical characteristics of cellulose, hemicellulose and lignin such as fibril length, fibril width, microfiber angle, lumen diameter, cell wall thickness and crystallinity, are dependent on the source. [4][5][6] Cellulose microfibers (CMF) can be isolated by controlled chemical processes.…”

Section: Introductionmentioning

confidence: 99%

Comparative study between mechanical and chemical treatments for the preparation of nanocellulose

Bracone

Ludueña

Álvarez

2022

Journal of Composite Materials

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Nanocrystalline cellulose (NCC) is usually obtained by the acid hydrolysis of microcrystalline cellulose for its use as polymer reinforcement. An ecological alternative to this process, avoiding the use of acids, is a mechanical method. High intensity ultrasonication (HIU) in optimal conditions (time, wave amplitude, volume ratio fiber/solution, cellulose extraction source) can be applied to prepare nanofibrillated cellulose (NFC). In this work, the HIU method was used to mechanically prepare NFC. Ultrasonication time (t) and wave amplitude (A) were optimized seeking for NFC with high crystallinity, strong thermal stability, large aspect ratio (length to diameter) and large surface to volume ratio with diameter in nanometer scale. The morphology and the physical/chemical properties of the NFC prepared at optimal HIU conditions were compared with those of NCC prepared from the same cellulose source at optimal acid hydrolysis (AH) conditions. Similar purity, lower crystallinity, improved thermal stability and larger aspect ratio with diameter in nanoscale were obtained for NFC prepared by HIU. These results can be used as an initial screening for the selection of the optimal process for NCC manufacture focusing on their use as polymer reinforcement.

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Extraction of cellulose nanofibrils from amylase-treated cassava bagasse using high-pressure homogenization

Cited by 36 publications

References 50 publications

Biorefinery System of Lignocellulosic Biomass Using Steam Explosion

Biorefinery System of Lignocellulosic Biomass Using Steam Explosion

Extraction of cellulose nanofibers from empty palm fruit bunches via mechanical defibrillation

Comparative study between mechanical and chemical treatments for the preparation of nanocellulose

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