Polyhydroxyalkanoate production from statistically optimized media using rice mill effluent as sustainable substrate with an analysis on the biopolymer's degradation potential

Sabapathy, Poorna Chandrika; Devaraj, Sabarinathan; Parthipan, Anburajan; Preethi, Kathirvel

doi:10.1016/j.ijbiomac.2019.01.003

Cited by 29 publications

(11 citation statements)

References 36 publications

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“…Chan et al [67] explained this result due to the higher moisture content of the soil laboratory test, which has been shown to accelerate the biodegrada-tion of both wood and PHA. But contradictory results demonstrating higher biodegradation of PHB in garden soil than in laboratory settings (using the same soil) have also been reported [71] .…”

Section: Pha Blends Biodegradation In Soilmentioning

confidence: 96%

Factors affecting polyhydroxyalkanoates biodegradation in soil

Fernandes

Salvador

Alves

et al. 2020

Polymer Degradation and Stability

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Polyhydroxyalkanoates (PHAs) are polymers with widespread applications, from medical devices to packaging. PHAs can be biodegradable in natural environments, such as soil, but the blend of PHA with other materials can change the polymer properties and consequently affect the biodegradation process. The composition of the microbial communities in soil also significantly affects the biodegradation, but other factors such as temperature, pH, and soil moisture, can also be determinant. These ecological and physic/chemical factors change in different seasons and in different soil layers. It is essential to know how these factors influence the PHAs' biodegradation to understand the impact of PHAs in nature. This review compiles the results on PHA polymers and PHA blends biodegradation, with focus on laboratory tests. The main factors affecting PHA's biodegradation in soil, both in laboratory tests and in the environment are also discussed.

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Section: Pha Blends Biodegradation In Soilmentioning

confidence: 96%

Factors affecting polyhydroxyalkanoates biodegradation in soil

Fernandes

Salvador

Alves

et al. 2020

Polymer Degradation and Stability

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“…ISTKB. PHA production by Acinetobacter junii was 5.84 times higher than the PHA produced with the parameters identified using the “one-factor-at-a-time” optimization technique [ 83 ]. The yield of PHA by Wickerhamomyces anomalus VIT-NN01 was reportedly increased to 19.5 g per L from 3.7 g per L under optimized conditions using sugarcane molasses as a medium [ 84 ].…”

Section: Optimization Of Pha Production Using Response Surface Methodologymentioning

confidence: 99%

The Synthesis, Characterization and Applications of Polyhydroxyalkanoates (PHAs) and PHA-Based Nanoparticles

et al. 2021

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Polyhydroxyalkanoates (PHAs) are storage granules found in bacteria that are essentially hydroxy fatty acid polyesters. PHA molecules appear in variety of structures, and amongst all types of PHAs, polyhydroxybutyrate (PHB) is used in versatile fields as it is a biodegradable, biocompatible, and ecologically safe thermoplastic. The unique physicochemical characteristics of these PHAs have made them applicable in nanotechnology, tissue engineering, and other biomedical applications. In this review, the optimization, extraction, and characterization of PHAs are described. Their production and application in nanotechnology are also portrayed in this review, and the precise and various production methods of PHA-based nanoparticles, such as emulsion solvent diffusion, nanoprecipitation, and dialysis are discussed. The characterization techniques such as UV-Vis, FTIR, SEM, Zeta Potential, and XRD are also elaborated.

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“…Furthermore, the addition of valeric acid enabled the authors to obtain P(3HB-co-3HV) copolymer with controlled proportion of the 3HV monomer. Recently, it was also revealed that rice mill effluent could be efficiently fermented by Acinetobacter junii to P(3HB) in the concentration of 2.4 g L −1 corresponding to 85.7% content of this homopolymer in the bacterial cells [ 105 ].…”

Section: Other Agro-food Industrial Wastes As Feedstock For Pha Productionmentioning

confidence: 99%

What Is New in the Field of Industrial Wastes Conversion into Polyhydroxyalkanoates by Bacteria?

Marciniak

Możejko-Ciesielska

2021

Polymers

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The rising global consumption and industrialization has resulted in increased food processing demand. Food industry generates a tremendous amount of waste which causes serious environmental issues. These problems have forced us to create strategies that will help to reduce the volume of waste and the contamination to the environment. Waste from food industries has great potential as substrates for value-added bioproducts. Among them, polyhydroxyalkanaotes (PHAs) have received considerable attention in recent years due to their comparable characteristics to common plastics. These biodegradable polyesters are produced by microorganisms during fermentation processes utilizing various carbon sources. Scale-up of PHA production is limited due to the cost of the carbon source metabolized by the microorganisms. Therefore, there is a growing need for the development of novel microbial processes using inexpensive carbon sources. Such substrates could be waste generated by the food industry and food service. The use of industrial waste streams for PHAs biosynthesis could transform PHA production into cheaper and more environmentally friendly bioprocess. This review collates in detail recent developments in the biosynthesis of various types of PHAs produced using waste derived from agrofood industries. Challenges associated with this production bioprocess were described, and new ways to overcome them were proposed.

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Polyhydroxyalkanoate production from statistically optimized media using rice mill effluent as sustainable substrate with an analysis on the biopolymer's degradation potential

Cited by 29 publications

References 36 publications

Factors affecting polyhydroxyalkanoates biodegradation in soil

Factors affecting polyhydroxyalkanoates biodegradation in soil

The Synthesis, Characterization and Applications of Polyhydroxyalkanoates (PHAs) and PHA-Based Nanoparticles

What Is New in the Field of Industrial Wastes Conversion into Polyhydroxyalkanoates by Bacteria?

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