Extraction and characterization of lignins from cashew apple bagasse obtained by different treatments

Serpa, Juliana de França; Silva, Jouciane de Sousa; Reis, Carla Luzia Borges; Micoli, Luca; Silva, Lorena; Canuto, Kirley Marques; Macedo, André Casimiro de; Rocha, Maria Valderez Ponte

doi:10.1016/j.biombioe.2020.105728

Cited by 27 publications

(10 citation statements)

References 55 publications

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“…After delignification, a lower C content (56.9%), and a higher O content (40%) were observed (Table 2). The increase in O content could be because of the oxidation of the lignin side chains, as part of the oxygen was involved in the lignin degradation reactions and was incorporated into the oxidised lignin products (Correia et al 2013;de França Serpa et al 2020). The chemical elements P, K, and Fe detected in EDS, would come from the chemical composition of the lignocellulosic biomass (Figs.…”

Section: Scanning Electron Microscopy (Sem) Analysismentioning

confidence: 99%

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Synthesis and characterisation of Saccharomyces cerevisiae immobilised cells from cashew apple bagasse

Ouattara

Soro

Kakou

et al. 2023

BioRes

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Cashew apple bagasse is biomass rich in little-exploited lignocellulosic material. This study used this biomass as a support for cell immobilisation of Saccharomyces cerevisiae. For this purpose, the immobilisation technique by attachment to a surface was applied. The bagasse used in this study contained 32.6% lignin. After delignification, the lignin content of the bagasse was 3.33%. The cell density was 1.21 × 108 cells g-1 for the immobilised cells prepared for 24 h. For the immobilised cells prepared for 48 h, the cell density was 1.71 × 108 cells g-1. Microscopic observations showed that the adhesion of the yeast cells to the surface of the support occurred on all layers with the cells immobilised for 48 h. These results highlight the efficiency of cell immobilisation of S. cerevisiae on cashew apple bagasse.

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Section: Scanning Electron Microscopy (Sem) Analysismentioning

confidence: 99%

“…Therefore, cashew apple bagasse (CAB) was used. It is composed of lignocellulosic residue and has good mechanical and physical properties (Santos et al 2007;de França Serpa et al 2020). The CAB was derived from the pressing of cashew juice.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterisation of Saccharomyces cerevisiae immobilised cells from cashew apple bagasse

Ouattara

Soro

Kakou

et al. 2023

BioRes

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“…The development of materials sourced from biophenols addresses, to the extent possible, these concerns by tapping into nature’s own reservoir of renewable compounds. As of now, by capitalizing on the potential of bioderived precursors such as vanillin, eugenol, tyrosine, guaiacol, cardanol, sesamol, etc., they have been utilized for the synthesis of multifunctional benzoxazine materials. − Since, the variety of biophenols are extracted from different nature of biomasses, they also provide an inherent solution to biofouling problems reducing the consumption of nonrenewable feed-stocks and in turn minimize the ecological footprint of materials. , …”

Section: Introductionmentioning

confidence: 99%

Sustainable Strategies for Fully Biobased Polybenzoxazine Composites from Trifunctional Thymol and Biocarbons: Advancements in High-Dielectric and Antibacterial Corrosion Implementations

Krishnasamy,

Arumugam

et al. 2024

ACS Sustainable Chem. Eng.

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The present work deals with the development of a series of trifunctional, fully biobased, sustainable polybenzoxazine composites for diverse applications, viz., high-dielectric, antibacterial, and corrosion-resistant uses. Thymol-containing trifunctional phenol (TTP) and the corresponding benzoxazines were prepared, and the molecular structure was confirmed using different spectroscopic analyses. Cure behavior of TTP-benzoxazine resins was studied using differential scanning calorimetry. TTP and furfurylamine-based benzoxazine (TTP-ff) monomer was selected as binder matrix and was reinforced with chicken feather carbon (CFC) and cashew nut shell (cake/residue) carbon (CNSC). The value of dielectric constant of 15 wt % of CFC and CNSC separately filled poly(TTP-ff) composites possesses 8.69 and 8.91, respectively. It was also observed that the biobased benzoxazines exhibited substantial antibacterial activity, indicating their potential utility in materials requiring inherent resistance against microbial colonization. Also, the poly(TTP-od)-coated fabric exhibits the value of WIC of 163°, which is superhydrophobic in nature and possess the behavior of self-cleaning and water-repellent surfaces. The poly(TTP-ol) offers better protection of mild steel surfaces from corrosive environment. Flexural strength of polybenzoxazine and its composites were studied for mechanical stability. Results from different studies showed that the developed biobased polybenzoxazine composites in the present work exhibit good dielectric performance, antimicrobial activity, superhydrophobic behavior, and anticorrosion applications.

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“…The key to the high-value utilization of lignin is to develop efficient separation methods. Currently, lignin is commonly extracted from lignocellulosic biomass using acids, alkalis, and organic solvents, but these methods operate under harsh conditions, causing environmental problems [ 2 ]. Therefore, it is urgent to find an environmentally friendly separation method to develop the lignocellulose refining industry.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties, Thermal Stability, and Pyrolysis Behavior of Antioxidative Lignin from Water Chestnut Shell Obtained with Ternary Deep Eutectic Solvents

Long

Huang

et al. 2023

Molecules

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The molecular weight of lignin extracted from lignocellulosic biomass is an important factor in determining its valorization in industrial processes. Herein, this work aims to explore the extraction of high molecular weight and bioactive lignin from water chestnut shells under mild conditions. Five kinds of deep eutectic solvents were prepared and applied to isolate lignin from water chestnut shells. The extracted lignin was further characterized with element analysis, gel permeation chromatography, and Ultraviolet-visible and Fourier-transform infrared spectroscopy. The distribution of pyrolysis products was identified and quantified with thermogravimetric analysis—Fourier-transform infrared spectroscopy and pyrolysis-gas chromatograph-mass spectrometry. The results showed that choline chloride/ethylene glycol/p-toluenesulfonic acid (1:1.8:0.2 molar ratio) exhibited the highest fractionation efficiency for lignin (84.17% yield) at 100 °C for 2 h. Simultaneously, the lignin showed high purity (90.4%), high relative molecular weight (37,077 g/mol), and excellent uniformity. Furthermore, the aromatic ring structure of lignin remained intact, consisting mainly of p-hydroxyphenyl, syringl, and guaiacyl subunits. The lignin generated a large number of volatile organic compounds during the depolymerization process, mainly composed of ketones, phenols, syringols, guaiacols, esters, and aromatic compounds. Finally, the antioxidant activity of the lignin sample was evaluated with the 1,1-diphenyl-2-picrylhydrazyl radical scavenging assay; the lignin from water chestnut shells showed excellent antioxidant activity. These findings confirm that lignin from water chestnut shells has a broad application prospect in valuable chemicals, biofuels and bio-functional materials.

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Extraction and characterization of lignins from cashew apple bagasse obtained by different treatments

Cited by 27 publications

References 55 publications

Synthesis and characterisation of Saccharomyces cerevisiae immobilised cells from cashew apple bagasse

Synthesis and characterisation of Saccharomyces cerevisiae immobilised cells from cashew apple bagasse

Sustainable Strategies for Fully Biobased Polybenzoxazine Composites from Trifunctional Thymol and Biocarbons: Advancements in High-Dielectric and Antibacterial Corrosion Implementations

Physicochemical Properties, Thermal Stability, and Pyrolysis Behavior of Antioxidative Lignin from Water Chestnut Shell Obtained with Ternary Deep Eutectic Solvents

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