Effect of the preparation method in the size of chitosan nanoparticles for the removal of allura red dye

Villegas‐Peralta, Yedidia; Correa-Murrieta, Ma. A.; Meza-Escalante, Edna R.; Flores-Aquino, Eric; Álvarez-Sánchez, Jesús; Sánchez-Duarte, Reyna G.

doi:10.1007/s00289-018-2601-x

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…e results of these authors are similar to those obtained in this investigation, except for the particles synthesized with 10.0 mg•mL −1 (Method A), the particles made with method B (CH solution, pH 2.8) were larger. Stirring time is another factor that has been related to the increase in the particle size because during this procedure the particles can agglomerate [37].…”

Section: Particle Size and Morphologymentioning

confidence: 99%

Synthesis and Characterization of Chitosan Particles Loaded with Antioxidants Extracted from Chia (Salvia hispanica L.) Seeds

Morales-Olán

Luna-Suárez

Figueroa‐Cárdenas

et al. 2021

International Journal of Analytical Chemistry

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Chia (Salvia hispanica L.) seeds contain antioxidants with great benefits for health and are widely used in the food industry. Antioxidants can be degraded by environmental factors, decreasing their biological activity. Their encapsulation in chitosan (CH) particles represents an alternative to protect them and increases their application. The encapsulation efficiency (%EE) of the antioxidants in the CH particles depends on the synthesis conditions. In this study, two methods for encapsulation of chia extract in chitosan particles were evaluated: method A, 0.05% CH in 1% acetic acid was mixed with 0.07% of tripolyphosphate (TPP) and method B, 0.3% CH in 2% acetic acid was mixed with 1% TPP. The results showed that the %EE decreased with the concentration of the extract, and the FTIR analysis suggested that the compounds of the extract were adsorbed on the surface of the particles. Dynamic light scattering and zeta potential analysis showed that the particles of method A are unstable and with a tendency to agglomerate, and the particles of method B are stable. The highest %EE was obtained with 0.2 mg·mL−1 (method A) and 1.0 mg·mL−1 (method B) of the extract. The higher loading capacity (%LC) (16–72%) was exhibited by the particles of method A. The best particle yield (62–69%) was observed for method B. The particles with the extract adsorbed showed antioxidant activity (5–60%) at 25°C; however, in the particles with the extract encapsulated, the activity increased after subjecting to acidic conditions at 40°C due to the breakdown of the particles. The results obtained will allow choosing the appropriate conditions for the synthesis of chitosan particles loaded with chia extracts with specific characteristics (%EE, %LC, size, and type) according to their future applications. The particles could be used in food and pharmaceutical industries and even in edible films for food packaging.

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Section: Particle Size and Morphologymentioning

confidence: 99%

Synthesis and Characterization of Chitosan Particles Loaded with Antioxidants Extracted from Chia (Salvia hispanica L.) Seeds

Morales-Olán

Luna-Suárez

Figueroa‐Cárdenas

et al. 2021

International Journal of Analytical Chemistry

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“…The noncommercial chitosan, sodium tripolyphosphate (TPP), and soy lecithin were applied in the procedure of Villegas-Peralta et al (2019) to CSNO production. The chitosan of deacetylation degree, 92.16 %, was solubilized in of acetic acid.…”

Section: Production Of Chitosan Nano-onionsmentioning

confidence: 99%

Nano-onions based on chitosan: Production and characterization

Villegas‐Peralta¹,

Sánchez-Duarte²,

López‐Cervantes³

et al. 2023

Rev. Int. Contam. Ambie.

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This work presents the morphology and characterization of chitosan nanoparticles crosslinked with lecithin in the form of nano-onions obtained by an easy, economical, and possibly scalable method from a polymeric precursor known as chitosan. The creation of new products by using shrimp waste is a fundamental factor in avoiding water pollution. These materials have a positive impact as they add value to waste, and they provide the opportunity to decrease pollution. Chitosan nano-onions were synthesized by an environmentally friendly, easy, and inexpensive method using chitosan as a natural source. Chitosan nano-onions (CSNO) were characterized by using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS) and specific surface area (SSA). The nano-onions characterization obtained by FTIR shows the presence of carbonyl groups at a wavenumber of 1752.12 cm–1, while the phosphate groups attributed to lecithin are observed at 1156.88 cm–1. XRD analysis confirmed an amorphous structure, while SEM images presented a globular morphology with concave surfaces. TEM analysis showed that the nano-onions are congregated in a unique structure that includes nanotubes. The CSNO average diameter by DLS was 442.5 nm with an octagonal arrangement, and a polydispersity index (PDI) of 0.532 and 31.9 mV. The average size of CSNO, the PDI, and the value of zeta potential were indicators of a stable dispersion with a specific superficial area measured by the Brunauer-Emmett-Teller (BET) method of 1.4 m2 g–1. The results of the chitosan-lecithin nano-onions characterization indicate changes in the surface of the material with a larger total surface area and pore structure, compared to that of pure chitosan. According to the results of the CHNO characterization, they could be used as adsorbents for contaminants and they also have a potential application in the biomedical area, mainly as drug encapsulation material.

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“…[30][31][32][33][34][35][36][37] Among the category of waste-derived adsorbents, chitin and chitosan are the most studied ones for eliminating AR from contaminated water. [38][39][40][41] Agricultural waste has been used to very less extent for this purpose. The only reported wastes (to the best of our knowledge) as adsorbents either directly or after pyrolysis for removing AR are pinewood, arabica coffee residues, coconut shell, corncob, guargum, peanut hull waste, sawdust, pecan nut shells, luffa cylindrica and bael patra.…”

Section: Introductionmentioning

confidence: 99%

“…), fiberboard, clay and chemical‐based adsorbents have been used as adsorbents for the removal of AR from wastewater [30–37] . Among the category of waste‐derived adsorbents, chitin and chitosan are the most studied ones for eliminating AR from contaminated water [38–41] . Agricultural waste has been used to very less extent for this purpose.…”

Section: Introductionmentioning

confidence: 99%

A Sustainable and Cost‐Effective Bioadsorbent for the Removal of Allura Red from Contaminated Water

Kaushik,

Bhogal,

Singhal

et al. 2024

ChemistrySelect

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Food grade dyes pose severe health hazards when consumed in excessive amounts or enter body via contaminated water. Despite its harmful effects, Allura Red (AR) is very less explored dye for its removal, especially using agricultural/fruit waste. This study presents efficient removal of an important and unsafe food grade dye, AR via adsorption. Waste watermelon peel waste has been used for the first time for treatmenting wastewater contaminated with AR. Waste was converted to two types of adsorbents, with and without subjecting it to pyrolysis. Both the adsorbents were characterized for functionality and crystallinity and used for conducting adsorption studies. Removal of dye was evaluated by intrinsic strategy of monitoring the model solutions under pre‐ and post‐adsorption conditions. Removal percentage of dye was determined by calculating its initial (Co) and final (Cf) concentrations in solution using the formula (see Eq. (1)). Various reaction parameters important for adsorption, viz. pH, adsorbent dose, residence time, reaction temperature and particle size were optimized. Results indicate that ~80 % and >92 % dye could be removed using 0.5 g/L adsorbent before and after pyrolysis respectively in 3.5 h from its 2 ppm concentration in modelled water.

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Effect of the preparation method in the size of chitosan nanoparticles for the removal of allura red dye

Cited by 8 publications

References 34 publications

Synthesis and Characterization of Chitosan Particles Loaded with Antioxidants Extracted from Chia (Salvia hispanica L.) Seeds

Synthesis and Characterization of Chitosan Particles Loaded with Antioxidants Extracted from Chia (Salvia hispanica L.) Seeds

Nano-onions based on chitosan: Production and characterization

A Sustainable and Cost‐Effective Bioadsorbent for the Removal of Allura Red from Contaminated Water

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