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Linolenic acids --- Linoleic Acids, Conjugated --- Plant Oils --- 664.3 --- 664.3 Edible oils and fats. Margarine. Protein foodstuffs --- Edible oils and fats. Margarine. Protein foodstuffs --- Octadecatrienoic acids --- Essential fatty acids --- Oils, Plant --- Oils, Vegetable --- Plant Oil --- Vegetable Oil --- Vegetable Oils --- Oil, Plant --- Oil, Vegetable --- Endosperm --- Conjugated Linoleic Acid (CLA) --- Conjugated Linoleic Acid --- Acid, Conjugated Linoleic --- Acids, Conjugated Linoleic --- Conjugated Linoleic Acids --- Linoleic Acid, Conjugated --- Trans Fatty Acids

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BioPolymers could be either natural polymers – polymer naturally occurring in Nature, such as cellulose or starch…, or biobased polymers that are artificially synthesized from natural resources. Since the late 1990s, the polymer industry has faced two serious problems: global warming and anticipation of limitation to the access to fossil resources. One solution consists in the use of sustainable resources instead of fossil-based resources. Hence, biomass feedstocks are a promising resource and biopolymers are one of the most dynamic polymer area. Additionally, biodegradability is a special functionality conferred to a material, bio-based or not. Very recently, facing the awareness of the volumes of plastic wastes, biodegradable polymers are gaining increasing attention from the market and industrial community. This special issue of Molecules deals with the current scientific and industrial challenges of Natural and Biobased Polymers, through the access of new biobased monomers, improved thermo-mechanical properties, and by substitution of harmful substances. This themed issue can be considered as collection of highlights within the field of Natural Polymers and Biobased Polymers which clearly demonstrate the increased interest in this field. We hope that this will inspire researchers to further develop this area and thus contribute to futures more sustainable society.”

Research & information: general --- imine --- epoxide --- amine --- thermoset --- bio-based --- biobased epoxy --- cardanol --- cationic photocuring --- microfibrillated cellulose --- biobased composites --- sustainable materials --- biomass --- green chemistry --- mechanims --- humins --- epoxy resins --- thermosets --- kinetics --- ring-opening --- biobased --- polyurethane foam --- catalyst --- polycarbonates --- furan-maleimide --- Diels-Alder --- fatty acids --- melt extrusion --- 3D printing --- cellulose nanofibrils --- biocomposite filaments --- physical property --- drained and undrained peatlands --- peats --- humic acids --- thermal --- paramagnetic and optical properties --- acetylated starch --- etherified starch --- chemical composition --- macromolecular characteristics --- surface characterization --- lignin --- fractionation --- biobased polymers --- solvent extraction --- membrane-assisted ultrafiltration --- plant oil-based monomers --- mixed micelles --- methyl-β-cyclodextrin inclusion complex --- emulsion polymerization --- nanocellulose --- polymer --- coating --- textile --- adhesion --- biobased monomer --- photoinduced-polymerization --- eugenol-derived methacrylate --- bacterial cellulose --- alginate --- gelatin --- curcumin --- biomaterials --- chitosan --- silane coupling agent --- microfiber --- crosslinking --- mechanical strength --- block copolymers --- renewable resources --- RAFT --- alkyl lactate --- PSA --- terpenoid --- exo-methylene --- conjugated diene --- renewable monomer --- biobased polymer --- radical polymerization --- copolymerization --- living radical polymerization --- RAFT polymerization --- heat-resistant polymer --- n/a

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Nowadays, we are witnessing highly dynamic research activities related to the intriguing field of biodegradable materials with plastic-like properties. These activities are stimulated by the strengthened public awareness of prevailing ecological issues connected to growing piles of plastic waste and increasing greenhouse gas emissions; this goes hand-in-hand with the ongoing depletion of fossil feedstocks, which are traditionally used to produce full carbon backbone polymers. Polyhydroxyalkanoate (PHA) biopolyesters, a family of plastic-like materials with versatile material properties, are increasing considered to be a future-oriented solution for diminishing these concerns. PHA production is based on renewable resources and occurs in a bio-mediated fashion through the action of living organisms. If accomplished in an optimized way, PHA production and the entire PHA lifecycle are embedded into nature´s closed cycles of carbon. Sustainable and efficient PHA production requires understanding and improvement of all the individual process steps. Holistic improvement of PHA production, applicable on an industrially relevant scale, calls for, inter alia, consolidated knowledge about the enzymatic and genetic particularities of PHA-accumulating organisms, an in-depth understanding of the kinetics of the bioprocess, the selection of appropriate inexpensive fermentation feedstocks, tailoring of PHA composition at the level of its monomeric constituents, optimized biotechnological engineering, and novel strategies for PHA recovery from biomass characterized by low energy and chemical requirements. This Special Issue represents a comprehensive compilation of articles in which these individual aspects have been addressed by globally recognized experts.

Cupriavidus necator --- alginate --- tissue engineering --- PAT --- simulation --- terpolyester --- high cell density cultivation --- process simulation --- selective laser sintering --- gaseous substrates --- microaerophilic --- in-line monitoring --- Pseudomonas sp. --- additive manufacturing --- fed-batch --- terpolymer --- on-line --- bubble column bioreactor --- biopolymer --- fused deposition modeling --- biomaterials --- polyhydroxyalkanoate (PHA) --- Pseudomonas putida --- fed-batch fermentation --- blends --- upstream processing --- wound healing --- activated charcoal --- downstream processing --- Archaea --- polyhydroxyalkanoates processing --- film --- bioreactor --- medium-chain-length polyhydroxyalkanoate (mcl-PHA) --- poly(3-hydroxybutyrate-co-4-hydroxybutyrate) --- Ralstonia eutropha --- hydrolysate detoxification --- extremophiles --- Poly(3-hydroxybutyrate) --- process analytical technologies --- PHA composition --- COMSOL --- non-Newtonian fluid --- tequila bagasse --- biopolyester --- biosurfactants --- Haloferax --- PHA --- phenolic compounds --- polyhydroxybutyrate --- PHB --- in-line --- Pseudomonas --- haloarchaea --- plant oil --- PHA processing --- bioeconomy --- delivery system --- P(3HB-co-3HV-co-4HB) --- productivity --- electrospinning --- cyanobacteria --- waste streams --- polyhydroxyalkanoates --- oxygen transfer --- polyhydroxyalkanoate --- biomedical application --- photon density wave spectroscopy --- carbon dioxide --- salinity --- PDW --- rheology --- halophiles --- feedstocks --- high-cell-density fed-batch --- biomedicine --- process engineering --- bioprocess design --- viscosity --- computer-aided wet-spinning --- microorganism --- Cupriavidus malaysiensis --- poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHVB)