Fermentation of Sweet Sorghum into Added Value Biopolymer of Polyhydroxyalkanoates (PHAs)

Kaewkannetra, Pakawadee

doi:10.5772/32985

Cited by 6 publications

(5 citation statements)

References 49 publications

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“…Therefore, it is important to discover, develop and exploit alternative methods of plastics production from renewable resources to minimize the environmental impact. Biopolymers are green alternatives to oilbased plastics and are ideal for many applications, such as product packaging, medical, construction, biofuels and many more [8][9][10][11][12]. Polyhydroxyalkanoates (PHAs) are an example of bio-based biodegradable polymers (biopolymers) [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Production of Biopolymer Polyhydroxyalkanoates (PHA) by Extreme Halophilic Marine Archaea Haloferax mediterranei in Medium with Varying Phosphorus Concentration

Melanie¹,

Winterburn

Devianto

2018

J. Eng. Technol. Sci.

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The development of plastics production from biodegradable resources such as polyhydroxyalkanoates (PHAs) is important due to the increasing demand for plastics. PHAs occur as intracellular solid materials produced by microorganisms as a result of an excess of carbon source and a limitation of nutrients. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) or PHBV, as one of the PHAs, is a combination of two homopolymers, namely poly-3-hydroxybutyrates (PHB) and poly-3-hydroxyvalerates (PHV). This study aimed to investigate the effect of the phosphorus concentration on the production of PHAs by Haloferax mediterranei. It is possible that phosphorus deficiency may affect the length of the HV chains in the copolymer structure and thus influence the copolymer properties. The experiment was done in triplicate at laboratory scale by culturing H. mediterranei in medium with phosphorus limitation using various phosphorus concentrations. During cultivation, the optical density, phosphorus concentration, pH, and dry cell weight were observed. The PHBV product was collected and analyzed using gas chromatography. The result shows that medium with a phosphorus concentration of 0.5 g/L produced higher PHAs than the other phosphorus concentrations. The accumulated PHA was 0.95 g/L with 15.6% of dry biomass and yield Y PHA/S of 0.1 g/g.

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Section: Introductionmentioning

confidence: 99%

Production of Biopolymer Polyhydroxyalkanoates (PHA) by Extreme Halophilic Marine Archaea Haloferax mediterranei in Medium with Varying Phosphorus Concentration

Melanie¹,

Winterburn

Devianto

2018

J. Eng. Technol. Sci.

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“…Table demonstrates the general abbreviations and names of different PHAs based on different types of “R” and values of “ n ” and “ m ” . The structure of PHAs depends on the nature of the carbon sources and the type of microorganisms, which can produce new formulations of polymers with distinct physicochemical properties . PHAs based on the number of carbon atoms in their side chain can typically be classified into three groups: short-, medium-, and long-chain PHAs.…”

Section: Classification Of Phasmentioning

confidence: 99%

“…PHAs based on the number of carbon atoms in their side chain can typically be classified into three groups: short-, medium-, and long-chain PHAs. PHAs consisting of 3–5 carbon atoms are short-chain length (scl) PHAs, whereas PHAs comprised of 6–14 carbon atoms are mcl-PHAs, and long-chain length (lcl) PHAs are composed of 15 and more carbon atoms. − P(3HHx), poly(3-hydroxyheptanoate), P(3HO), etc. are instances of mcl-PHAs …”

Section: Classification Of Phasmentioning

confidence: 99%

A Review of Current Achievements and Recent Challenges in Bacterial Medium-Chain-Length Polyhydroxyalkanoates: Production and Potential Applications

Azizi,

Eslami,

Goudarzi

et al. 2024

Biomacromolecules

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Using petroleum-derived plastics has contributed significantly to environmental issues, such as greenhouse gas emissions and the accumulation of plastic waste in ecosystems.Researchers have focused on developing ecofriendly polymers as alternatives to traditional plastics to address these concerns. This review provides a comprehensive overview of medium-chain-length polyhydroxyalkanoates (mcl-PHAs), biodegradable biopolymers produced by microorganisms that show promise in replacing conventional plastics. The review discusses the classification, properties, and potential substrates of less studied mcl-PHAs, highlighting their greater ductility and flexibility compared to poly(3hydroxybutyrate), a well-known but brittle PHA. The authors summarize existing research to emphasize the potential applications of mcl-PHAs in biomedicine, packaging, biocomposites, water treatment, and energy. Future research should focus on improving production techniques, ensuring economic viability, and addressing challenges associated with industrial implementation. Investigating the biodegradability, stability, mechanical properties, durability, and cost-effectiveness of mcl-PHA-based products compared to petroleum-based counterparts is crucial. The future of mcl-PHAs looks promising, with continued research expected to optimize production techniques, enhance material properties, and expand applications. Interdisciplinary collaborations among microbiologists, engineers, chemists, and materials scientists will drive progress in this field. In conclusion, this review serves as a valuable resource to understand mcl-PHAs as sustainable alternatives to conventional plastics. However, further research is needed to optimize production methods, evaluate long-term ecological impacts, and assess the feasibility and viability in various industries.

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“…They have predominant thrust in the pharmaceutical and biomedical fields of clinical application [5][6][7]. Biopolymers are classified as polysaccharides such as chitosan, cellulose, starch, xanthan, dextran, alginate; polypeptides such as collagen, gelatin, silk, zein, albumin; polynucleotides such as DNA, RNA and polyesters like polylactic acid, polyhydroxyalkanoates [1,8,9]. Physicochemical properties, structural factors, and composition of the biopolymer that defines its functional efficiency can be modulated to obtain the appropriate efficiency.…”

Section: Biopolymersmentioning

confidence: 99%

Advances in Functionalized Hybrid Biopolymer Augmented Lipid-based Systems: A Spotlight on Their Role in Design of Gastro Retentive Delivery Systems

2021

Archives of Gastroenterology Research

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Biopolymers are the polymers extracted from living organisms either from renewable plant or animal sources are gaining importance due to their better biodegradability, biocompatibility, less/no immunogenicity, less/no toxicity, and availability. Polysaccharides (e.g., chitosan, cellulose), polypeptides (e.g., collagen, silk), and polynucleotides are the important class of biopolymers that are finding multidisciplinary applications in biomedical fields. At the other end, lipid-based systems are having their special concern in drug delivery due to their advantages over other excipient systems. In this present review, various classes of biopolymers and their fusion with conventional lipids for amalgam entity using advanced techniques for futuristic biomedicine applications are outlined. The comprehensive focuses on upbringing the importance and types of functionalization techniques explored for designing deliverable for various unmet clinical needs. Along with recent trends, the scrutiny even addresses the future perspective of these hybrid systems impacting in addressing the pharceutical, formulational and clinical challenges in treating gasteroentric diseases.

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Fermentation of Sweet Sorghum into Added Value Biopolymer of Polyhydroxyalkanoates (PHAs)

Cited by 6 publications

References 49 publications

Production of Biopolymer Polyhydroxyalkanoates (PHA) by Extreme Halophilic Marine Archaea Haloferax mediterranei in Medium with Varying Phosphorus Concentration

Production of Biopolymer Polyhydroxyalkanoates (PHA) by Extreme Halophilic Marine Archaea Haloferax mediterranei in Medium with Varying Phosphorus Concentration

A Review of Current Achievements and Recent Challenges in Bacterial Medium-Chain-Length Polyhydroxyalkanoates: Production and Potential Applications

Advances in Functionalized Hybrid Biopolymer Augmented Lipid-based Systems: A Spotlight on Their Role in Design of Gastro Retentive Delivery Systems

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