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Advances in Polysaccharide Materials II

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A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 12087

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Prof. Dr. Patrick M. Martin

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Unit of Transformations & Agroressources, ULR7519, Universite d'Artois, 62408 Bethune, France
Interests: bio-based chemistry; carbohydrates; lipids; secondary metabolites; amphiphilic; drug targeting, bio-control; materials
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Prof. Dr. Nicolas Joly

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Unit of Transformations & Agroressources, ULR7519, Universite d'Artois, 62408 Bethune, France
Interests: polysaccharide extraction and characterization; polysaccharide modification; polysaccharide-based materials and biomaterials
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Dr. Maria Laura Fanani

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Centro de Investigaciones en Química Biológica- CONICET and Universidad Nacional de Córdoba, Córdoba, Argentina
Interests: membranes biophysics; ganglioside; drug-membrane interaction; surfactants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polysaccharides are very diverse in their structure and function; they are widely distributed in nature and are produced by all organisms, plants, animals and microorganisms. Natural polysaccharides (cellulose, starch, hemicelluloses, pectin, chitin, chitosan, alginic acid, carrageenan, etc.) have excellent characteristics, including biodegradability and biocompatibility, which make them extremely attractive for many applications. The presence of different functional groups in the polysaccharides thus allows various chemical or enzymatic modifications, which offer practically limitless options for developing new compounds that are better suited to the targeted applications.

The Special Issue "Advances in Polysaccharide Materials" aims to provide a forum for the dissemination of the latest studies, with a broad coverage of research progress and up-to-date articles dealing with various fundamental and applied aspects of polysaccharide materials. In this Special Issue, we are seeking contributions from researchers which discuss all aspects of polysaccharide materials, including extraction, characterization, formulation, and chemical/enzymatic modification for applications in different fields. We anticipate that this Special Issue will provide a unique platform for the dissemination of new concepts and all applications of polysaccharides, in order to continue to motivate research in this field.

Prof. Dr. Patrick M. Martin
Prof. Dr. Nicolas Joly
Dr. Maria Laura Fanani
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

extraction, characterization
biorefinery
chemo/enzymatic modification
surfactant
biocontrol
microbial polysaccharides
additive manufacturing
materials
plastics
composites
porous materials
food applications
membranes
biomedical applications
biomaterials
drug delivery systems
nanocarriers
environmental assessment
recycling
biodegradation

Related Special Issue

Advances in Polysaccharides Materials in Molecules (12 articles)

Published Papers (6 papers)

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Research

19 pages, 7229 KiB

Open AccessArticle

Schiff Base Functionalized Cellulose: Towards Strong Support-Cobalt Nanoparticles Interactions for High Catalytic Performances

by Hicham Aitbella, Larbi Belachemi, Nicolas Merle, Philippe Zinck and Hamid Kaddami

Molecules 2024, 29(8), 1734; https://doi.org/10.3390/molecules29081734 - 11 Apr 2024

Viewed by 337

Abstract

A new hybrid catalyst consisting of cobalt nanoparticles immobilized onto cellulose was developed. The cellulosic matrix is derived from date palm biomass waste, which was oxidized by sodium periodate to yield dialdehyde and was further derivatized by grafting orthoaminophenol as a metal ion complexing agent. The new hybrid catalyst was characterized by FT-IR, solid-state NMR, XRD, SEM, TEM, ICP, and XPS. The catalytic potential of the nanocatalyst was then evaluated in the catalytic hydrogenation of 4-nitrophenol to 4-aminophenol under mild experimental conditions in aqueous medium in the presence of NaBH₄ at room temperature. The reaction achieved complete conversion within a short period of 7 min. The rate constant was calculated to be K = 8.7 × 10⁻³ s⁻¹. The catalyst was recycled for eight cycles. Furthermore, we explored the application of the same catalyst for the hydrogenation of cinnamaldehyde using dihydrogen under different reaction conditions. The results obtained were highly promising, exhibiting both high conversion and excellent selectivity in cinnamyl alcohol. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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12 pages, 1486 KiB

Open AccessArticle

The Strength and Fire Properties of Paper Sheets Made of Phosphorylated Cellulose Fibers

by Mehrnoosh Tavakoli, Bartłomiej Mazela, Wojciech Grześkowiak, Jędrzej Proch, Mirosław Mleczek and Waldemar Perdoch

Molecules 2024, 29(1), 133; https://doi.org/10.3390/molecules29010133 - 25 Dec 2023

Viewed by 1180

Abstract

Phosphorylated cellulose can be an intrinsic flame retardant and a promising alternative for halogenated fire inhibitors. In this study, the mixture of di-ammonium hydrogen phosphate (DAP) and urea (U), containing phosphate and nitrogen groups, was applied to attain fire inhibitor properties. Functional groups of cellulose were grafted with phosphorous by keeping the constant molar ratio of 1/1.2/4.9 between anhydroglucose units of cellulose/DAP/U in different concentrations of bleached kraft pulp. Phosphorus concentrations were determined using the ICP hrOES method, and paper sheets were made using the Rapid Köthen apparatus. The tensile strength of phosphorylated cellulose increased twice compared with unmodified cellulose when the phosphorous concentration increased to 10,000 g/kg. An increase in the tensile index comes from the higher freeness of pulp and cross-linking of the phosphorous group between cellulose fibers. Remarkable fire retardancy effects were achieved in cellulose concentrations above 5 wt%. The raised phosphorous concentration above 10,000 g/kg due to the phosphorylation process caused the formation of a char layer on a cellulose surface and the nonflammable gas emission. That effect was indirectly confirmed by reducing the combustion temperature and HRR by 50 and 45%, respectively. Due to increasing phosphorus concentration in cellulose sheets, cellulose’s fire and strength properties increased significantly. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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20 pages, 8134 KiB

Open AccessFeature PaperArticle

Development of a Xanthan Gum Based Superabsorbent and Water Retaining Composites for Agricultural and Forestry Applications

by Alessandro Sorze, Francesco Valentini, Andrea Dorigato and Alessandro Pegoretti

Molecules 2023, 28(4), 1952; https://doi.org/10.3390/molecules28041952 - 18 Feb 2023

Cited by 12 | Viewed by 2978

Abstract

In this work, bio-based hydrogel composites of xanthan gum and cellulose fibers were developed to be used both as soil conditioners and topsoil covers, to promote plant growth and forest protection. The rheological, morphological, and water absorption properties of produced hydrogels were comprehensively investigated, together with the analysis of the effect of hydrogel addition to the soil. Specifically, the moisture absorption capability of these hydrogels was above 1000%, even after multiple dewatering/rehydration cycles. Moreover, the soil treated with 1.8 wt% of these materials increased the water absorption capacity by approximately 60% and reduced the water evaporation rate, due to the formation of a physical network between the soil, xanthan gum and cellulose fibers. Practical experiments on the growth of herbaceous and tomato plants were also performed, showing that the addition of less than 2 wt% of hydrogels into the soil resulted in higher growth rate values than untreated soil. Furthermore, it has been demonstrated that the use of the produced topsoil covers helped promote plant growth. The exceptional water-regulating properties of the investigated materials could allow for the development of a simple, inexpensive and scalable technology to be extensively applied in forestry and/or agricultural applications, to improve plant resilience and face the challenges related to climate change. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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18 pages, 1949 KiB

Open AccessArticle

Deep Chemical and Physico-Chemical Characterization of Antifungal Industrial Chitosans—Biocontrol Applications

by Gaël Huet, Yunhui Wang, Christian Gardrat, Daphnée Brulé, Amélie Vax, Cédric Le Coz, Frédérique Pichavant, Silvère Bonnet, Benoit Poinssot and Véronique Coma

Molecules 2023, 28(3), 966; https://doi.org/10.3390/molecules28030966 - 18 Jan 2023

Cited by 1 | Viewed by 1514

Abstract

Five different chitosan samples (CHI-1 to CHI-5) from crustacean shells with high deacetylation degrees (>93%) have been deeply characterized from a chemical and physicochemical point of view in order to better understand the impact of some parameters on the bioactivity against two pathogens frequently encountered in vineyards, Plasmopara viticola and Botrytis cinerea. All the samples were analyzed by SEC-MALS, ¹H-NMR, elemental analysis, XPS, FTIR, mass spectrometry, pyrolysis, and TGA and their antioxidant activities were measured (DPPH method). Molecular weights were in the order: CHI-4 and CHI-5 (MW >50 kDa) > CHI-3 > CHI-2 and CHI-1 (MW < 20 kDa). CHI-1, CHI-2 and CHI-3 are under their hydrochloride form, CHI-4 and CHI-5 are under their NH₂ form, and CHI-3 contains a high amount of a chitosan calcium complex. CHI-2 and CHI-3 showed higher scavenging activity than others. The bioactivity against B. cinerea was molecular weight dependent with an IC50 for CHI-1 = CHI-2 (13 mg/L) ≤ CHI-3 (17 mg/L) < CHI-4 (75 mg/L) < CHI-5 (152 mg/L). The bioactivity on P. viticola zoospores was important, even at a very low concentration for all chitosans (no moving spores between 1 and 0.01 g/L). These results show that even at low concentrations and under hydrochloride form, chitosan could be a good alternative to pesticides. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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12 pages, 4349 KiB

Open AccessArticle

Towards the Hydrophobization of Thermoplastic Starch Using Fatty Acid Starch Ester as Additive

by Caroline Terrié, Angélique Mahieu, Vincent Lequart, Patrick Martin, Nathalie Leblanc and Nicolas Joly

Molecules 2022, 27(19), 6739; https://doi.org/10.3390/molecules27196739 - 10 Oct 2022

Cited by 1 | Viewed by 1956

Abstract

To bring surface hydrophobicity to thermoplastic starch (TPS) materials for food packaging, fatty acid starch esters (FASE), specifically starch tri-laurate, were incorporated into TPS formulations. A total of three different ratios of FASE (2%, 5% and 10%) were added to the TPS formulation to evaluate the influence of FASE onto physico-chemical properties of TPS/FASE blends, i.e., surface hydrophobicity, dynamic vapor sorption (DVS), and tensile behaviors. Blending TPS with FASE leads to more hydrophobic materials, whatever the FASE ratio, with initially measured contact angles ranging from 90° for the 2%-FASE blend to 99° for the 10%-blend. FT-IR study of the material surface and inner core shows that FASE is mainly located at the material surface, justifying the increase of material surface hydrophobicity. Despite this surface hydrophobicity, blending TPS with FASE seems not to affect blend vapor sorption behavior. From a mechanical behavior perspective, the variability of tensile properties of starch-based materials with humidity rate is slightly reduced with increasing FASE ratio (a decrease of maximal stress of 10–30% was observed for FASE ratio 2% and 10%), leading to more ductile materials. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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18 pages, 5884 KiB

Open AccessArticle

Synthesis of High Performance Thiophene–Aromatic Polyesters from Bio-Sourced Organic Acids and Polysaccharide-Derived Diol: Characterization and Degradability Studies

by Lesly Dasilva Wandji Djouonkep, Arnaud Kamdem Tamo, Ingo Doench, Naomie Beolle Songwe Selabi, Emmanuel Monga Ilunga, Arnaud Regis Kamgue Lenwoue, Mario Gauthier, Zhengzai Cheng and Anayancy Osorio-Madrazo

Molecules 2022, 27(1), 325; https://doi.org/10.3390/molecules27010325 - 05 Jan 2022

Cited by 15 | Viewed by 2956

Abstract

In this work, the feasibility of replacing petroleum-based poly(ethylene terephthalate) (PET) with fully bio-based copolyesters derived from dimethyl 2,5-thiophenedicarboxylate (DMTD), dimethyl 2,5-dimethoxyterephthalate (DMDMT), and polysaccharide-derived 1,6-hexanediol (HDO) was investigated. A systematic study of structure-property relationship revealed that the properties of these poly(thiophene–aromatic) copolyesters (PHS(20–90)) can be tailored by varying the ratio of diester monomers in the reaction, whereby an increase in DMTD content noticeably shortened the reaction time in the transesterification step due to its higher reactivity as compared with DMDMT. The copolyesters had weight-average molar masses (Mw) between 27,500 and 38,800 g/mol, and dispersity Đ of 2.0–2.5. The different polarity and stability of heterocyclic DMTD provided an efficient mean to tailor the crystallization ability of the copolyesters, which in turn affected the thermal and mechanical performance. The glass transition temperature (T_g) could be tuned from 70–100 °C, while the tensile strength was in a range of 23–80 MPa. The obtained results confirmed that the co-monomers were successfully inserted into the copolyester chains. As compared with commercial poly(ethylene terephthalate), the copolyesters displayed not only enhanced susceptibility to hydrolysis, but also appreciable biodegradability by lipases, with weight losses of up to 16% by weight after 28 weeks of incubation. Full article

(This article belongs to the Special Issue Advances in Polysaccharide Materials II)

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