Sustainable applications of polyhydroxyalkanoates in various fields: A critical review

Pandey, Aishwarya; Ndao, Adama; Adjallé, Kokou; Blais, Jean-François

doi:10.1016/j.ijbiomac.2022.09.098

Cited by 55 publications

(12 citation statements)

References 187 publications

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“…In the agriculture industry, they are used to create biodegradable mulch films, which reduce labor and plastic waste [73]. As a result, PHAs contribute significantly towards sustainable farming practices [74]. In addition, PHAs are used to manufacture packaging materials, disposable cutlery, and containers due to their high flexibility and durability [75].…”

Section: Polyhydroxyalkanoates (Phas)mentioning

confidence: 99%

Towards a Sustainable Circular Economy: Algae‐Based Bioplastics and the Role of Internet‐of‐Things and Machine Learning

Bin Abu Sofian,

Lim,

Manickam

et al. 2023

ChemBioEng Reviews

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The growing potential of sustainable materials such as polyhydroxyalkanoates (PHAs), polylactic acid (PLA), alginate, carrageenan, and ulvan for bioplastics production presents an opportunity to promote a sustainable circular economy. This review investigates their properties, applications, and challenges. Bioplastics derived from algae offer an environmentally friendly alternative to petroleum‐based plastics, a shift of paramount importance to society due to the escalating environmental concerns associated with traditional plastics. The role of the internet‐of‐things (IoT) and machine learning in refining these bioplastics' production and development processes is emphasized. IoT monitors cultivation conditions, data collection, and process control for more sustainable production. Machine learning can enhance algae cultivation, increasing the supply of raw materials for algal bioplastics and improving their efficiency and output. The study results indicate the promise of algae‐based bioplastics, IoT, and machine learning in fostering a more environmentally sustainable future. By harnessing these advanced technologies, optimization of bioplastic production is possible, potentially revolutionizing the materials industry and addressing existing challenges toward achieving a sustainable circular economy.

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Section: Polyhydroxyalkanoates (Phas)mentioning

confidence: 99%

Towards a Sustainable Circular Economy: Algae‐Based Bioplastics and the Role of Internet‐of‐Things and Machine Learning

Bin Abu Sofian,

Lim,

Manickam

et al. 2023

ChemBioEng Reviews

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“…6−12 One of the most well-known and widely used biodegradable bioplastics is poly(hydroxybutyrate) (PHB), a thermoplastic with potential applications in food packaging, materials, tissue engineering, and single-use foodware. 13 PHB is a naturally occurring polyester comprising repeating units of 3-hydroxybutyrate (3-HB). It is synthesized by various microorganisms (e.g., Cupriavidus necator, Alcaligenes latus, Methylocystis parvus str.…”

Section: ■ Introductionmentioning

confidence: 99%

One-Pot Biosynthesis of Acetone from Waste Poly(hydroxybutyrate)

Armijo-Galdames,

Sadler

2024

ACS Sustainable Chem. Eng.

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The plastic waste crisis is catalyzing change across the plastics life cycle. Central to this is increased production and application of bioplastics and biodegradable plastics. In particular, poly(hydroxybutyrate) (PHB) is a biodegradable bioplastic that can be produced from various renewable and waste feedstocks and is a promising alternative to some petrochemical-derived and nonbiodegradable plastics. Despite its advantages, PHB biodegradation depends on environmental conditions, and the effects of degradation into microplastics, oligomers, and the 3-hydroxybutyrate (3-HB) monomer on soil microbiomes are unknown. We hypothesized that the ease of PHB biodegradation renders this next-generation plastic an ideal feedstock for microbial recycling into platform chemicals currently produced from fossil fuels. To demonstrate this, we report the one-pot degradation and recycling of PHB into acetone using a single strain of engineered Escherichia coli. Following strain development and initial bioprocess optimization, we report maximum titers of 123 mM acetone (7 g/L) from commercial PHB granules after 24 h fermentation at 30 °C. We further report biorecycling of an authentic sample of postconsumer PHB waste at a preparative scale. This is the first demonstration of biological recycling of PHB into a second-generation chemical, and it demonstrates next-generation plastic waste as a novel feedstock for the circular bioeconomy.

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“…Despite such promising results, the best-performing biomimetic systems are fully synthetic. , Lengthy syntheses, use of harsh chemicals, and toxicity of the final materials are concerns that can hold back future development. Nontoxicity, sustainably sourced materials, and minimal environmental impact are increasingly in demand . Consequently, several groups have turned to developing new and remaking old adhesive systems using bioinspired or biobased chemistry. , Protein- and biopolymer-based adhesives are being reported more frequently and some materials even exhibit wet bonding, to one degree or another .…”

Section: Introductionmentioning

confidence: 99%

“…Nontoxicity, sustainably sourced materials, and minimal environmental impact are increasingly in demand. 24 Consequently, several groups have turned to developing new and remaking old adhesive systems using bioinspired or biobased chemistry. 25,26 Protein-and biopolymer-based adhesives are being reported more frequently and some materials even exhibit wet bonding, to one degree or another.…”

Section: Introductionmentioning

confidence: 99%

Underwater Bonding with a Biobased Adhesive from Tannic Acid and Zein Protein

Schmidt,

Christ,

Kertes

et al. 2023

ACS Appl. Mater. Interfaces

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Herein are presented several adhesive formulations made from zein protein and tannic acid that can bind to a wide range of surfaces underwater. Higher performance comes from more tannic acid than zein, whereas dry bonding required the opposite case of more zein than tannic acid. Each adhesive works best in the environment that it was designed and optimized for. We show underwater adhesion experiments done on different substrates and in different waters (sea water, saline solution, tap water, deionized water). Surprisingly, the water type does not influence the performance to a great deal but the substrate type does. An additional unexpected result was bond strength increasing over time when exposed to water, contradicting general experiments of working with glues. Initial adhesion underwater was stronger compared to benchtop adhesion, suggesting that water helps to make the glue stick. Temperature effects were determined, indicating maximum bonding at about 30 °C and then another increase at higher temperatures. Once the adhesive was placed underwater, a protective skin formed on the surface, keeping water from entering the rest of the material immediately. The shape of the adhesive could be manipulated easily and, once in place, the skin could be broken to induce faster bond formation. Data indicated that underwater adhesion was predominantly induced by tannic acid, cross-linking within the bulk for adhesion and to the substrate surfaces. The zein protein provided a less polar matrix that helped to keep the tannic acid molecules in place. These studies provide new plant-based adhesives for working underwater and for creating a more sustainable environment.

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Sustainable applications of polyhydroxyalkanoates in various fields: A critical review

Cited by 55 publications

References 187 publications

Towards a Sustainable Circular Economy: Algae‐Based Bioplastics and the Role of Internet‐of‐Things and Machine Learning

Towards a Sustainable Circular Economy: Algae‐Based Bioplastics and the Role of Internet‐of‐Things and Machine Learning

One-Pot Biosynthesis of Acetone from Waste Poly(hydroxybutyrate)

Underwater Bonding with a Biobased Adhesive from Tannic Acid and Zein Protein

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