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Polysaccharides, Volume 4, Issue 3

2023 September - 6 articles

Cover Story: In recent years, providing safe drinking water using eco-friendly methods has emerged as a significant challenge for researchers. Biopolymers like starch and chitosan have gained attention as effective adsorbent materials for the removal of iron and sulfate ions from water due to their various advantages, including eco-friendliness, cost-effectiveness, and biodegradability. We studied the Influence of chitosan chain length on adsorption by mixing potato- and nano potato starch with both long- and short-chain chitosan. We examined the adsorption kinetics of the adsorbents and we investigated the adsorption isotherms for Fe^2+/3+ and SO₄²⁻ employing the Langmuir, Sips, and Dubinin–Radushkevich adsorption models.

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Articles (6)

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Article

6 Citations

2,388 Views

18 Pages

Ecological Sorption of Iron and Sulfate Ions onto Starch and Chitosan Biopolymer Blend

Rahma Boughanmi,
Christine Steinbach,
Niklas Gerlach,
Marina Oelmann,
Christoph Beutner and
Simona Schwarz

Polysaccharides2023, 4(3), 325-342;https://doi.org/10.3390/polysaccharides4030019

12 September 2023

Providing safe drinking water free of heavy metal ions like iron and oxyanions like sulfate has become a worldwide issue. Starch, as one of the widely cheapest and available biomaterials, has demonstrated its capability to adsorb heavy metal ions fro...

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Review

6 Citations

2,625 Views

54 Pages

pH Effects on the Conformations of Galacturonan in Solution: Conformational Transition and Loosening, Extension and Stiffness

Sergio Paoletti and
Ivan Donati

Polysaccharides2023, 4(3), 271-324;https://doi.org/10.3390/polysaccharides4030018

8 September 2023

Calorimetric (from both isothermal micro-calorimetry and DSC), chiro-optical, viscometric and rheological data on aqueous solutions of pectic acid and low-methoxyl pectin (LMP), published over decades from different laboratories, have been comparativ...

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Article

7 Citations

3,394 Views

15 Pages

Lactic Acid Fermentation of Carrageenan Hydrolysates from the Macroalga Kappaphycus alvarezii: Evaluating Different Bioreactor Operation Modes

Adam Tabacof,
Verônica Calado and
Nei Pereira

Polysaccharides2023, 4(3), 256-270;https://doi.org/10.3390/polysaccharides4030017

30 August 2023

Lactic acid is a molecule used abundantly in the food, cosmetic, and pharmaceutical industries. It is also the building block for polylactic acid, a biodegradable polymer which has gained interest over the last decade. Seaweeds are fast growing, envi...

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Review

16 Citations

3,494 Views

37 Pages

Polysaccharides as Economic and Sustainable Raw Materials for the Preparation of Adsorbents for Water Treatment

Gema Díaz Bukvic,
Ezequiel Rossi and
María Inés Errea

Polysaccharides2023, 4(3), 219-255;https://doi.org/10.3390/polysaccharides4030016

20 August 2023

Adsorption processes, due to their technical simplicity and cost-effectiveness, have arisen as one of the most well-known, straightforward solutions to water pollution. In this context, polysaccharides, due to their abundance, biodegradability, and b...

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Article

7 Citations

2,913 Views

11 Pages

Effect of Amylopectin Content on Mechanical, Barrier and Thermal Properties of Plasticized Starch/Chitosan Films

Marilia M. Horn,
Virginia C. A. Martins and
Ana M. G. Plepis

Polysaccharides2023, 4(3), 208-218;https://doi.org/10.3390/polysaccharides4030015

24 July 2023

Mechanical, barrier, and thermal properties of films based on blends of corn starch and chitosan plasticized with ethylene glycol, glycerol, and sorbitol were investigated. Starch amylopectin variation was explored, and contents of 100% and 73% were...

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Article

2 Citations

2,517 Views

19 Pages

Influence of Ultrasound on the Properties of Polysaccharide Complexes and Materials Based on Them

Elizaveta Mokhova,
Mariia Gordienko,
Natalia Menshutina,
Sergei Kalenov,
Igor Avetissov and
Artyom Eremeev

Polysaccharides2023, 4(3), 189-207;https://doi.org/10.3390/polysaccharides4030014

30 June 2023

Freeze-drying is often used as a final stage to produce three-dimensional porous matrices for medicine. Because a pure solvent crystallizes first during freezing, it acts as a pore-forming agent. The size of the solvent crystals primarily depends on...

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