MOLECULAR CHARACTERIZATION, ANTIOXIDANT, AND TOXICITY ACTIVITY OF CHITOSAN ISOLATED FROM Lissahatina Fulica SHELL WASTE USING HOT PLATE MAGNETIC STIRRER TECHNIQUE

Umarudin,; Rahayu, Sri; Warsito,; Widyarti, Sri

doi:10.31788/rjc.2022.1547050

Cited by 2 publications

(1 citation statement)

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“…This isolation approach changes the heat, temperature, and solvent during extraction. The isolated chitosan performs antioxidant 10 and hypercholesterolemia function. 11 Antioxidants play an important role in helping protect body from free radicals to prevent adverse effects by neutralizing them.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Electrical Conductivity and Thermal Stability of Polyaniline-Maghnite Nanocomposites

Ouis¹,

Belarbi²,

Mesli³

et al. 2023

ChChT

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A new nanocomposite based on conducting polyaniline (PANI) and Algerian montmorillonite clay dubbed Maghnite is proposed to combine conducting and thermal properties (Mag). The PANI-Mag nanocompo-sites samples were made by in situ polymerization with CTABr (cetyl trimethyl ammonium bromide) as the clay galleries' organomodifier. In terms of the PANI-Mag ratio, the electrical and thermal properties of the obtained nanocomposites are investigated. As the amount of Maghnite in the nanocomposite increases, thermal stability improves noticeably, as measured by thermal gravimetric analysis. The electric conductivity of nanocomposites is lower than that of free PANI. As the device is loaded with 5 % clay, the conductivity begins to percolate and decreases by many orders of magnitude. The findings show that the conductivity of nanocomposites is largely independent of clay loading and dispersion.

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Section: Introductionmentioning

confidence: 99%

Improvement of Electrical Conductivity and Thermal Stability of Polyaniline-Maghnite Nanocomposites

Ouis¹,

Belarbi²,

Mesli³

et al. 2023

ChChT

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Characterization, Antioxidant Activity, and In Silico Molecular Docking of Chitosan from Snail Shell Waste by Ultrasonic Technique

Umarudin¹,

Rahayu²,

Widyarti³

et al. 2023

ChChT

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Snails are often found in Indonesia, especially at Kediri, but the snail shell has no commercial value. This research report describes the characterization and antioxidant activity of chitosan from snail shell waste (chitosan-SSW) by ultrasonic technique and analyzes the potential of chitosan as an inhibitor of receptors of free radicals using an in silico molecular docking method. Characterization of chitosan-SSW was performed to analyze the content of water, protein, and functional groups as well as molecular weight, particle size, mor-phology, antioxidant activity, and in silico molecular docking. We found that chitosan-SSW with ultrasonic treatment had a high degree of deacetylation (DD) and high molecular weight (MW). The characteristic of chitosan-SSW was found to be as follows: water content of 0.43 %, protein content of 1.59 %, molecular weight of 2.198 kDa, and deacetylation degree value of 79.50 %. Importantly, chitosan-SSW had high antioxidant activity to potentially reduce free radical of DPPH with IC50 value of 2.44 µg/mL. Chitosan is predicted to have the potential as an inhibitor of lipoxygenase, CYP2C9, and NADPH-oxidase.

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MOLECULAR CHARACTERIZATION, ANTIOXIDANT, AND TOXICITY ACTIVITY OF CHITOSAN ISOLATED FROM Lissahatina Fulica SHELL WASTE USING HOT PLATE MAGNETIC STIRRER TECHNIQUE

Cited by 2 publications

References 0 publications

Improvement of Electrical Conductivity and Thermal Stability of Polyaniline-Maghnite Nanocomposites

Improvement of Electrical Conductivity and Thermal Stability of Polyaniline-Maghnite Nanocomposites

Characterization, Antioxidant Activity, and In Silico Molecular Docking of Chitosan from Snail Shell Waste by Ultrasonic Technique

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