Influence of the plasticizer on rice bran-based eco-friendly bioplastics obtained by injection moulding

Industrial Crops and Products, Journal Year: 2022, Volume and Issue: 180, P. 114767 - 114767

Published: March 14, 2022

The manufacture of eco-friendly bioplastic materials from renewable resources to replace petroleum-based plastics has attracted increasing attention. For many years, proteins, lipids and polysaccharides have been proposed as natural biopolymers sources obtain biodegradable plastic materials. As by-product the rice industry, bran, is an available non-expensive resource both proteins starches, food groups that, properly processed, can be employed in development bioplastics. Plasticizers are essential for bioplastics and, when carbohydrate/protein mixtures used, adequate selection plasticizers must addressed. By these means, a material suitable thermo-mechanical processing methods obtained if starches subjected shear forces under high temperatures water excess (gelatinisation). Moreover, additional polyol-based plasticizers, such glycerol sorbitol, allow obtaining reinforced products with improved elasticity protein-based processed. aim present study was analyse plasticizing effect combined different proportions or well their influence on final properties. Results indicate that higher ratios produce stiffer viscoelastic moduli, maximum stress Young´s modulus, while sorbitol content leads elasticities uptake capacities general. seems provide more better tensile (up 500% modulus) functional properties compared glycerol.

Language: Английский

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Fermentative bioconversion of food waste into biopolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) using Cupriavidus necator

Environmental Research, Journal Year: 2022, Volume and Issue: 215, P. 114323 - 114323

Published: Sept. 14, 2022

Language: Английский

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Finding of Novel Galactose Utilizing Halomonas sp. YK44 for Polyhydroxybutyrate (PHB) Production

Polymers, Journal Year: 2022, Volume and Issue: 14(24), P. 5407 - 5407

Published: Dec. 10, 2022

Polyhydroxybutyrate (PHB) is a biodegradable bioplastic with potential applications as an alternative to petroleum-based plastics. However, efficient PHB production remains difficult. The main cost of attributed carbon sources; hence, finding inexpensive sources important. Galactose possible substrate for polyhydroxyalkanoate it abundant in marine environments. Marine bacteria that produce from galactose could be effective resource can used production. In this study, identify utilizing producer, we examined 16 Halomonas strains. We demonstrated cerina (Halomonas sp. YK44) has the highest growth and using culture media containing 2% galactose, final 4% NaCl, 0.1% yeast extract. These conditions yielded 8.98 g/L (78.1% content (w/w)). When galactose-containing red algae (Eucheuma spinosum) hydrolysates were source, 5.2 was produced 1.425% after treatment activated carbon. Since high salt avoid sterilization, whether YK44 non-sterilized conditions. Culture these 72.41% content. Thus, robust against contamination, allowing long-term economical

Language: Английский

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Haloarchaea as emerging big players in future polyhydroxyalkanoate bioproduction: Review of trends and perspectives

Current Research in Biotechnology, Journal Year: 2022, Volume and Issue: 4, P. 377 - 391

Published: Jan. 1, 2022

Haloarchaea comprise the extremely halophilic branch of phylum Euryarchaeota and they are members prokaryotic domain Archaea. They thrive best in saline habitats with salt concentrations 2 to 5 mol L–1 NaCl, thus under conditions near saturation water. These ancient organisms among oldest species on Earth, characterized by ether-linked lipids cytoplasmic membrane murein-free cell walls. increasingly receiving attention as microbial factories for bioproduction diverse marketable products, such bacterioruberin, bacteriorhodopsin, isoprenoids, polyhydroxyalkanoates (PHAs). biopolyesters serve intracellular storage compounds secondary metabolism haloarchaea many other prokaryotes. Engineered or wild type PHA-producing that utilize inexpensive raw materials bioproduction, which only require clean-in-place procedures run PHA production bioprocesses, currently undergoing scale-up within research development field Archaea Biotechnology. In addition, PHAs exhibit high potential both bio-based biodegradable plastic-like bulk products industrial biotechnology market ("White Biotechnology") biopolymers. However, has not yet reached maturity. The present review discusses background, previous research, biological role biosynthesis haloarchaea, well current trends, a critical discussion its broad industrialization.

Language: Английский

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Microbial production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), from lab to the shelf: A review

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 274, P. 133157 - 133157

Published: June 18, 2024

Language: Английский

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