Soybean hulls: Optimization of the pulping and bleaching processes and carboxymethyl cellulose synthesis

Barros, Patricio J. Robles; Ascheri, Diego P. R.; Santos, Mikaele Lorrany Siqueira; Morais, Cleiber Cintra; Ascheri, J. L. R.; Signini, Roberta; Santos, Danilo Martins dos; Campos, André José de; Devilla, Ivano Alessandro

doi:10.1016/j.ijbiomac.2019.12.074

Cited by 34 publications

(12 citation statements)

References 35 publications

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“…Soybean hulls are one of the by-products of soybean crushing, a necessary step to produce soybean oil and meal (Poore et al, 2002 ; Scapini et al, 2018 ). Hulls represent around 8% (w/w) of the seed (Middelbos and Fahey, 2008 ; Robles Barros et al, 2020 ) and find application mainly in the animal feedstuff sector, due to their low nutrient value (Li et al, 2011 ; Balint et al, 2020 ; Robles Barros et al, 2020 ). When such use is not possible, hulls are burnt to recover heat or disposed in landfill as putrescible waste (Robles Barros et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…Hulls represent around 8% (w/w) of the seed (Middelbos and Fahey, 2008 ; Robles Barros et al, 2020 ) and find application mainly in the animal feedstuff sector, due to their low nutrient value (Li et al, 2011 ; Balint et al, 2020 ; Robles Barros et al, 2020 ). When such use is not possible, hulls are burnt to recover heat or disposed in landfill as putrescible waste (Robles Barros et al, 2020 ). According to previous works, they are constituted by variable amounts of cellulose (38–51%), hemicellulose (20–25%), lignin (4–8%), pectin (4–8%), proteins (11–15%), minor components (fatty acids, waxes, terpenes, essential oils, aromatic compounds, residual sucrose), and a little fraction of ashes (Wartelle and Marshall, 2000 ; Rojas et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

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A Way to Close the Loop: Physicochemical and Adsorbing Properties of Soybean Hulls Recovered After Soybean Peroxidase Extraction

et al. 2020

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Soybean hulls are one of the by-products of soybean crushing and find application mainly in the animal feed sector. Nevertheless, soybean hulls have been already exploited as source of peroxidase (soybean peroxidase, SBP), an enzyme adopted in a wide range of applications such as bioremediation and wastewater treatment, biocatalysis, diagnostic tests, therapeutics and biosensors. In this work, the soybean hulls after the SBP extraction, destined to become a putrescible waste, were recovered and employed as adsorbents for water remediation due to their cellulose-based composition. They were studied from a physicochemical point of view using different characterization techniques and applied for the adsorption of five inorganic ions [Fe(III), Al(III), Cr(III), Ni(II), and Mn(II)] in different aqueous matrixes. The behavior of the exhausted soybean hulls was compared to pristine hulls, demonstrating better performances as pollutant adsorbents despite significant changes in their features, especially in terms of surface morphology, charge and composition. Overall, this work evidences that these kinds of double-recovered scraps are an effective and sustainable alternative for metal contaminants removal from water.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Way to Close the Loop: Physicochemical and Adsorbing Properties of Soybean Hulls Recovered After Soybean Peroxidase Extraction

et al. 2020

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“…WSH has clear and well-ordered fibrous hull forms consisting of palisade (the outer epidermal layer of tightly packed macrosclereids) and hourglass cells (the hypodermal layer of osteosclereids with expanded ends). These anatomic hull parts are made of cellulose, hemicellulose and pectin (insoluble carbohydrates) and they are bound together with lignin [23]. The drastic influence of carbonization (Fig.…”

Section: Characterization Studymentioning

confidence: 99%

“…In Serbia, production of soybean is on a constant rise and data show yield of 806407 t in 2020 [22], which ranks Serbia among countries with the highest average yield in Europe. Waste soybean hulls (WSH) account for 7-8 % of the total soybean mass [23,24]. Some of the investigated applications of WSH are: ethanol and bio-oil production, animal feed [24], fermentable sugars [25], cellulose nanofibers [26], cellulose pulp [23], energy source by pyrolysis [27], activated carbon production [28] and adsorption in wastewater treatment [24].…”

Section: Introductionmentioning

confidence: 99%

“…Waste soybean hulls (WSH) account for 7-8 % of the total soybean mass [23,24]. Some of the investigated applications of WSH are: ethanol and bio-oil production, animal feed [24], fermentable sugars [25], cellulose nanofibers [26], cellulose pulp [23], energy source by pyrolysis [27], activated carbon production [28] and adsorption in wastewater treatment [24]. Still, it could be seen that WSH have not been studied as a catalyst support raw material yet.…”

Section: Introductionmentioning

confidence: 99%

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Application of impregnated biocarbon produced from soybean hulls in dye decolorization

Kulic-Mandic

Bečelić‐Tomin

Pucar-Milidrag

et al. 2021

Hem Ind

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Waste soybean hulls (WSH) were investigated as a Fe-support in two forms: raw and carbonized (i.e. biocarbon, BC), as possible value-added materials. Fe-impregnation was implemented in order to produce heterogeneous Fenton catalysts for Reactive Blue 4 dye degradation. Materials characterization demonstrated a rise in the specific surface area due to decomposition of WSH constituents during carbonization (to obtain BC) and thermal activation (to obtain Fe-WSH and Fe-BC), thus producing catalysts with high mesoporosity and hematite as the active site for Fenton reaction. Among the investigated materials, Fe-WSH showed the greatest ability for ?OH production in acidic medium. Next, the heterogeneous Fenton process was optimized by using response surface methodology, which resulted in selection of the following reaction conditions: 3 mM H2O2, 100 mg Fe-WSH, reaction time of 180 min, at a constant pH 3, RB4 concentration of 50 mg dm-3 and at room temperature. The achieved dye removal and mineralization were 85.7 and 66.8 %, respectively, while the catalyst showed high stability and the reaction intermediates formed during the oxidation process had a low inhibitory effect on Vibrio fischeri bacteria.

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Preparation of carboxymethyl cellulose (CMC) derived from palm fiber waste: Effect of ozone pretreatment on CMC properties

Pujokaroni

Ichiura

2023

J of Applied Polymer Sci

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Carboxymethyl cellulose (CMC) was prepared using cellulose extracted from palm fiber (CPF). The effect of ozone pretreatment on the CMC properties degree of substitution (DS) and viscosity was investigated. After treatment of CPF with ozone, CMC was prepared by alkalization followed by etherification using sodium hydroxide (NaOH) and sodium monochloroacetic acid (NaMCA) in an alcoholic medium. The DS of CMC increased with increased ozone pretreatment time and with increased amounts of NaOH and NaMCA reagents. The CMC solubility increased with increasing DS. Therefore, the solubility increased with ozone pretreatment time. The favored treatment conditions were ozone pretreatment for 3 h, followed by the addition of 10 mL of 30% NaOH and 38.6 mM of NaMCA. Under these conditions, the DS, purity, and solubility were 1.05, 79.6%, and 94.6%, respectively. The viscosity of CMC prepared using cellulose treated with ozone decreased with increasing ozone pretreatment time, which was caused by the reduced degree of polymerization. Therefore, use of ozone pretreatment for CMC preparation is an effective method for controlling CMC properties.

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Soybean hulls: Optimization of the pulping and bleaching processes and carboxymethyl cellulose synthesis

Cited by 34 publications

References 35 publications

A Way to Close the Loop: Physicochemical and Adsorbing Properties of Soybean Hulls Recovered After Soybean Peroxidase Extraction

A Way to Close the Loop: Physicochemical and Adsorbing Properties of Soybean Hulls Recovered After Soybean Peroxidase Extraction

Application of impregnated biocarbon produced from soybean hulls in dye decolorization

Preparation of carboxymethyl cellulose (CMC) derived from palm fiber waste: Effect of ozone pretreatment on CMC properties

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