Effect of sodium hypochlorite concentration during pre-treatment on isolation of nanocrystalline cellulose from Leucaena leucocephala (Lam.) mature pods

Aridi, Aida Safina; Chin, Nyuk Ling; Ishak, Nur Akmal; Yusof, Nor Nadiah Mohamad; Kadota, Kazunori; Manaf, Yanty Noorzianna Abdul; Yusof, Yus Aniza

doi:10.15376/biores.16.2.3137-3158

Cited by 11 publications

(5 citation statements)

References 28 publications

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“…The cellulose samples isolated via bleaching are shown in Figure . The process was performed under mild conditions compared to other proposed conditions with higher concentrations of NaClO . After bleaching, the biomass color changed from dark brown to white/yellowish.…”

Section: Results and Discussionmentioning

confidence: 99%

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Isolation of Highly Crystalline Cellulose via Combined Pretreatment/Fractionation and Extraction Procedures within a Biorefinery Concept

Margellou,

Psochia,

Torofias

et al. 2024

ACS Sustainable Resour. Manage.

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Sustainable production of bio-based materials and chemicals requires integrated approaches which utilize all fractions of lignocellulosic biomass. In this work, highly crystalline cellulose was isolated via combined pretreatment/fractionation and extraction processes from beechwood sawdust. The proposed approach was based on the selective recovery of hemicellulose components in the first step, followed by enhanced delignification in the second step, permitting the efficient recovery of the remaining cellulose via bleaching in the final step. Hydrothermal pretreatment under tailored conditions in neat water or dilute acid resulted in almost complete hemicellulose removal (80−96 wt %) in the liquid fraction. In the second step, the formed surface lignin was isolated via mild extraction while enhanced removal of both native/structural and surface lignin (71 wt %) was achieved by applying the organosolv treatment using dilute sulfuric acid as catalyst. Dilute sulfuric acid pretreatment followed by acid catalyzed organosolv pretreatment proved to be the most efficient combined approach, leading to 80 wt % hemicellulose removal as xylose monomer, and 71 wt % delignification. High crystallinity cellulose (<88%), with an overall cellulose recovery of 68−91 wt % based on native cellulose in parent biomass was isolated in the last step via bleaching of all pretreated biomass solids. The proposed integrated biorefinery procedures that aim to whole "waste" biomass valorization, replacing fossil resources, with the use of green solvents (water, ethanol) at relatively mild temperature/pressure conditions, are in line with the scope of several United Nations Sustainable Development Goals, such as UN SDG 8,11,12,and 13.

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Section: Results and Discussionmentioning

confidence: 99%

“…The process was performed under mild conditions compared to other proposed conditions with higher concentrations of NaClO. 68 After bleaching, the biomass color changed from dark brown to white/yellowish. The main factor affecting the cellulose color is the time and the severity of the bleaching.…”

Section: Results and Discussionmentioning

confidence: 99%

Isolation of Highly Crystalline Cellulose via Combined Pretreatment/Fractionation and Extraction Procedures within a Biorefinery Concept

Margellou,

Psochia,

Torofias

et al. 2024

ACS Sustainable Resour. Manage.

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“…After treating the residue with NaClO, a variation in the transmittance percentage was observed in the featuring peaks of lignin at 1720-1730, 1320, and 3290-3330 cm −1 (Fig. 3), probably because of the decrease in the lignin content (Aridi et al, 2021). This lignin decrease was contrasted through the whiteness 2), where the ABW obtained 46.2% showing a significant difference with BABW (72.1%).…”

Section: Characterization and Conditioning Of The Wastementioning

confidence: 92%

“…The colors of the reflecting surface of the residue were measured using a spectrophotometer with a color measuring system (Konica Minolta CM-5, Tokio, Japón). The L*, a* and b* values were registered from the waste sample (Aridi et al, 2021).…”

Section: Characterization Of the Agroindustrial Wastementioning

confidence: 99%

Optimization of Total Carotenoid Production by Rhodotorula mucilaginosa from Artichoke Agroindustrial Waste Using Response Surface Methodology

Rodríguez

Quiñones

Castillo

et al. 2023

EREM

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The carotenoids have vast medical, industrial, dietary, and pharmaceutical importance due to their provitamin A precursor, immunomodulator, antioxidant and photoprotective activity. The purpose of the research was to optimize the production of carotenoids using Rhodotorula mucilaginosa from artichoke agroindustrial waste as a low-cost substrate. The artichokes bracts waste was bleached by sodium hypochlorite (NaClO 2%) and was characterized through whiteness index and FTIR. The bleached artichoke waste (BABW) used in the fermentation went through acid hydrolysis, applying 8% of the bleached artichokes residue and sulfuric acid (2.5%) for 1 h at 90°C, obtaining a greater reduced sugars content at 3.1 g/L. Rhodotorula mucilaginosa was isolated and molecularly identified. The production of carotenoids from a culture media based on hydrolyzed BABW, peptone (0.5%), yeast extract (0.1%) and sodium chloride (0.5%) was evaluated at different conditions of pH (5–8) and agitation speed (80–160 rpm) applying the surface response methodology by a rotational central compound design. The best carotenoids performance obtained had 2968.95 µg/L VVC and 1228.53 µg/g TFC at pH 5, 120 rpm and 30°C for 72 h. The chemical characterization of the extracted carotenoids was confirmed by UV-VIS and Raman spectroscopy methods. The results suggest that Rhodotorula mucilaginosa is capable of producing carotenoids from artichoke waste fermentation, providing a low-cost and sustainable alternative route for use in the global market.

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“…Examples of agents that are used in bleaching are sodium hypochlorite, hydrogen peroxide, and sodium chlorite [ 50 ]. By using the oxidizing agent sodium hypochlorite (NaOCl), it is possible to make lignin removal more efficient [ 51 ]. Due to the alkali-resistant linkage that is formed between lignin and hemicellulose after alkali treatment, some studies have used hydrogen peroxide treatment as a precursor to sodium chlorite treatment, which could suppress the lignin removal.…”

Section: Preparation Of Nanocellulosementioning

confidence: 99%

A Review on Barrier Properties of Cellulose/Clay Nanocomposite Polymers for Packaging Applications

Jali,

Mohan,

Mwangi

et al. 2023

Polymers

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Packaging materials are used to protect consumer goods, such as food, drinks, cosmetics, healthcare items, and more, from harmful gases and physical and chemical damage during storage, distribution, and handling. Synthetic plastics are commonly used because they exhibit sufficient characteristics for packaging requirements, but their end lives result in environmental pollution, the depletion of landfill space, rising sea pollution, and more. These exist because of their poor biodegradability, limited recyclability, etc. There has been an increasing demand for replacing these polymers with bio-based biodegradable materials for a sustainable environment. Cellulosic nanomaterials have been proposed as a potential substitute in the preparation of packaging films. Nevertheless, their application is limited due to their poor properties, such as their barrier, thermal, and mechanical properties, to name a few. The barrier properties of materials play a pivotal role in extending and determining the shelf lives of packaged foods. Nanofillers have been used to enhance the barrier properties. This article reviews the literature on the barrier properties of cellulose/clay nanocomposite polymers. Cellulose extraction stages such as pretreatment, bleaching, and nanoparticle isolation are outlined, followed by cellulose modification methods. Finally, a brief discussion on nanofillers is provided, followed by an extensive literature review on the barrier properties of cellulose/clay nanocomposite polymers. Although similar reviews have been presented, the use of modification processes applied to cellulose, clay, and final nanocomposites to enhance the barrier properties has not been reviewed. Therefore, this article focuses on this scope.

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Effect of sodium hypochlorite concentration during pre-treatment on isolation of nanocrystalline cellulose from Leucaena leucocephala (Lam.) mature pods

Cited by 11 publications

References 28 publications

Isolation of Highly Crystalline Cellulose via Combined Pretreatment/Fractionation and Extraction Procedures within a Biorefinery Concept

Isolation of Highly Crystalline Cellulose via Combined Pretreatment/Fractionation and Extraction Procedures within a Biorefinery Concept

Optimization of Total Carotenoid Production by Rhodotorula mucilaginosa from Artichoke Agroindustrial Waste Using Response Surface Methodology

A Review on Barrier Properties of Cellulose/Clay Nanocomposite Polymers for Packaging Applications

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