Production of a nascent cellulosic material from vegetable waste: Synthesis, characterization, functional properties, and its potency for a cationic dye removal

Biswal, Achyuta Kumar; Panda, Lopamudra; Chakraborty, Sourav; Pradhan, Subrat Kumar; Dash, Manas Ranjan; Misra, Pratibha

doi:10.1016/j.ijbiomac.2023.124959

Cited by 12 publications

(3 citation statements)

References 108 publications

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“…The surface morphologies of CE starch-based films visualized through the scanning electron microscope are demonstrated in Figure B under two magnifications. As can be seen, a smooth and homogeneous structure is obtained, and no phase separation of the constituents occurs, indicating strong intermolecular interaction among them (CE starch-CMC-glycerol). , The nonidentification of starch/ CMC interface interruption and good structural integrity of the film envisaged good interfacial adhesion among all constituents due to the structural similarities and adequate bonding. , …”

Section: Results and Discusionmentioning

confidence: 93%

“…The aliquot was centrifuged at 15,000 rpm for 20 min at room temperature. The residue was separated carefully, transferred to a glass Petri dish, and dried at 60 °C for 12 h. The swelling power and solubility were calculated using eqs and . , normalSwelling 0.25em normalpower 0.25em false( normalg / normalg false) = Weight 0.25em of 0.25em swollen 0.25em granules Weight 0.25em of 0.25em sample − Weight 0.25em of 0.25em dissolved 0.25em starch × 100 Solubility 0.25em false( % false) = Weight 0.25em of 0.25em dried 0.25em starch 0.25em in 0.25em Petri 0.25em dish Sample 0.25em weight × 100 …”

Section: Methodsmentioning

confidence: 99%

“…Glycerol is used because it is highly stable and nontoxic and increases the flexibility of the film . The optimization process of fabricating biodegradable film was analyzed theoretically by the surface response methodology coupled with a hybrid artificial neural network-particle swarm model . The CE starch, CMC, and glycerol were taken as the processing variables, and water vapor transmission rate (WVTR), tensile strength (TS), and moisture content (MC) as the responses.…”

Section: Introductionmentioning

confidence: 99%

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Process Optimization, Fabrication, and Characterization of a Starch-Based Biodegradable Film Derived from an Underutilized Crop

Biswal,

Chakraborty,

Saha

et al. 2024

ACS Food Sci. Technol.

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We developed an affordable, environmentally friendly, and biodegradable film as an alternative to traditional nonbiodegradable plastics using the tuber starch of the Colocasia esculenta (CE) plant. Starch was yielded to a 21.56% extent, and it contained 31% amylose, with minimal levels of protein and lipids and an ash residue of 2.6 ± 0.01%, attributed to essential minerals. To optimize the fabrication process, we employed response surface methodology (RSM) in conjunction with a hybrid statistical model of particle swarm optimization (PSO) and an artificial neural network (ANN). The process variables included CE starch, carboxymethylcellulose, and glycerol, while the responses measured were the water vapor transmission rate (WVTR), tensile strength (TS), and moisture content (MC). FTIR data unveiled the secondary structure of starch in both the original starch and film, specifically related to the skeletal models of glycosidic linkage pyranose rings. SEM imaging displayed a uniform microstructure without indicating phase separation among its components. The water contact angle of the film was greater than that of CE starch, with values of 69°and 51°, respectively. The developed film demonstrated biodegradability, with 32% degradation occurring during seven days. It exhibited thermal stability up to 332 °C and had a low WVTR of 34 g mm m −1 day −1 , a high TS of 11 Mpa, and a low MC of 0.65%. The estimated cost of production of the film at a laboratory scale was 1.56 USD per kg. Therefore, the CE starchbased biodegradable film is a sustainable and cost-effective alternative to current commercial films used in food packaging.

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Section: Results and Discusionmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Process Optimization, Fabrication, and Characterization of a Starch-Based Biodegradable Film Derived from an Underutilized Crop

Biswal,

Chakraborty,

Saha

et al. 2024

ACS Food Sci. Technol.

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Exploring Spectral and Electrochemical Behavior of Hydroxy‐N‐Benzylideneanilines by Integrated Theoretical and Experimental Approaches

Hota,

Biswal,

Dash

et al. 2024

J of Physical Organic Chem

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The present work explored the effect of –OH group substitution (o/p) on the spectral and electrochemical behavior of N‐benzylideneaniline. The geometry optimization of unsubstituted and (o/p)‐OH‐substituted analogs revealed the coplanarity of the molecules. The vibrational spectra of the compounds were computed using density functional theory (DFT) and compared with the experimental data. The observed bands were assigned based on total energy distribution (TED). Predicted electronic absorption spectra from time‐dependent density functional theory (TD‐DFT) calculation were compared with the UV–visible spectra of the molecules. The analysis of the lowest spin‐allowed (singlet‐singlet) excited states divulged possible electronic transition. The o‐substituted benzylideneaniline possessed the lowest highest occupied molecular orbital (HOMO)–lowest unoccupied molecular orbital (LUMO) energy gap among the substituted and unsubstituted analogs. The intramolecular contacts were interpreted using natural bond orbital and localized molecular orbital analysis. The –CH=N– linkage was investigated as a bridge for the electron delocalization from the donor to acceptor moieties. The manifestation of a reduction peak in the cyclic voltammetric studies confirmed the electrochemical behavior in the –OH‐substituted molecule, which was diffusion‐controlled. The discrepancy in the electrochemical property concerning the position of the –OH substituent of the candidate molecules was put forward.

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Combined Experimental and Theoretical Investigation of the Electrochemical Behavior of Hydroxy‐Substituted Anils

Priyambada Biswal,

Hota,

Ranjan Dash

et al. 2024

ChemistrySelect

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The present work explored the electrochemical behavior of two organic compounds, o‐hydroxybenzylidene‐orthochloroaniline(Anil‐1) and o‐hydroxynaphthalidene‐orthochloro aniline(Anil‐2) through a series of theoretical and experimental investigations. The vibrational frequencies of two anilswere analyzed experimentally by FTIR and theoretically by DFT studies. A comparison of the frequencies with their unsubstituted analog, o‐hydroxybenzylideneaniline, confirmed the electron‐donating nature of the −Cl and −OH substituents in anils. The hyperconjugative interaction energy obtained from NBO analysis divulged the direction of the electron donation from the donor orbitals to the acceptor orbitals. UV‐visible studies illustrated prominent π→π* electronic transitions with significant oscillator strength(0.10–0.26) and molar extinction coefficient(~104) experimentally. Analysis of the global and local reactive descriptors of anils revealed a lower HOMO‐LUMO energy gap of Anil‐2(4.05 eV) than Anil‐1(4.46 eV), corroborating the order of decreasing reactivity to be Anil‐2>Anil‐1. The Cyclic Voltammetry studies disclosed the involvement of an oxidation process in Anil‐1 and Anil‐2 with a higher oxidation potential of Anil‐1 (1.43 V) than Anil‐2(1.31 V) due to the naphthyl moiety of the latter. However, the absence of a cathodic peak in both cases envisaged the irreversible nature of oxidation. The results demonstrated that both the anils could be suitable optical materials for microelectronics applications.

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Production of a nascent cellulosic material from vegetable waste: Synthesis, characterization, functional properties, and its potency for a cationic dye removal

Cited by 12 publications

References 108 publications

Process Optimization, Fabrication, and Characterization of a Starch-Based Biodegradable Film Derived from an Underutilized Crop

Process Optimization, Fabrication, and Characterization of a Starch-Based Biodegradable Film Derived from an Underutilized Crop

Exploring Spectral and Electrochemical Behavior of Hydroxy‐N‐Benzylideneanilines by Integrated Theoretical and Experimental Approaches

Combined Experimental and Theoretical Investigation of the Electrochemical Behavior of Hydroxy‐Substituted Anils

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