Biodegradation of polysaccharides, polyesters and proteins in soil based on the determination of produced carbon dioxide

Wolf, Patricia; Reimer, Martin; Maier, Maximilian; Zollfrank, Cordt

doi:10.1016/j.polymdegradstab.2023.110538

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…This behavior may be explained by a faster and easier biodegradation of proteins contained in the spirulina biomass, relative to other biopolymers. Also, one may appreciate that the decomposition of proteins into amino acids leads to an attractive source of nutrients for the microbiome of the biodegradation media and may cause higher biomass growth [28,29].…”

Section: Biodegradation Testing (Industrial Composting)mentioning

confidence: 99%

Biodegradation Study of Styrene–Butadiene Composites with Incorporated Arthrospira platensis Biomass

Bumbac,

Nicolescu,

Zaharescu

et al. 2024

Polymers

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The preparation of polymer composites that incorporate material of a biogenic nature in the polymer matrices may lead to a reduction in fossil polymer consumption and a potentially higher biodegradability. Furthermore, microalgae biomass as biogenic filler has the advantage of fast growth and high tolerance to different types of culture media with higher production yields than those provided by the biomass of terrestrial crops. On the other hand, algal biomass can be a secondary product in wastewater treatment processes. For the present study, an SBS polymer composite (SBSC) containing 25% (w/w) copolymer SBS1 (linear copolymer: 30% styrene and 70% butadiene), 50% (w/w) copolymer SBS2 (linear copolymer: 40% styrene and 60% butadiene), and 25% (w/w) paraffin oil was prepared. Arthrospira platensis biomass (moisture content 6.0 ± 0.5%) was incorporated into the SBSC in 5, 10, 20, and 30% (w/w) ratios to obtain polymer composites with spirulina biomass. For the biodegradation studies, the ISO 14855-1:2012(E) standard was applied, with slight changes, as per the specificity of our experiments. The degradation of the studied materials was followed by quantitatively monitoring the CO2 resulting from the degradation process and captured by absorption in NaOH solution 0.5 mol/L. The structural and morphological changes induced by the industrial composting test on the materials were followed by physical–mechanical, FTIR, SEM, and DSC analysis. The obtained results were compared to create a picture of the material transformation during the composting period. Thus, the collected data indicate two biodegradation processes, of the polymer and the biomass, which take place at the same time at different rates, which influence each other. On the other hand, it is found that the material becomes less ordered, with a sponge-like morphology; the increase in the percentage of biomass leads to an advanced degree of degradation of the material. The FTIR analysis data suggest the possibility of the formation of peptide bonds between the aromatic nuclei in the styrene block and the molecular residues resulting from biomass biodegradation. It seems that in industrial composting conditions, the area of the polystyrene blocks from the SBS-based composite is preferentially transformed in the process.

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Section: Biodegradation Testing (Industrial Composting)mentioning

confidence: 99%

Biodegradation Study of Styrene–Butadiene Composites with Incorporated Arthrospira platensis Biomass

Bumbac,

Nicolescu,

Zaharescu

et al. 2024

Polymers

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“…Clean Technol. 2024, 6, FOR PEER REVIEW 13 Biodegradation in soil is influenced by soil factors such as moisture content, aeration, and the presence of organic matter, as well as the nature and chemical and physical properties of the hydrogels [47,48]. Because of the appropriate conditions, biodegradation from microbial activity begins earlier in wet dirt than in dry dirt.…”

Section: Biodegradation In Soilmentioning

confidence: 99%

From Fruit Waste to Hydrogels for Agricultural Applications

Adi Sulianto,

Adiyaksa,

Wibisono

et al. 2023

Clean Technol.

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Here, we describe and assess a method for reusing specific food waste to make hydrogels, which can be employed to improve the efficacy of agrochemicals and water. It represents an approach for tackling current challenges, such as food waste, water management, and pesticide optimization. Depending on the formulation, the hydrogels were created by crosslinking pectin and starch with CaCl2 or sodium trimetaphosphate. FTIR and SEM were employed to investigate the methylation degree of the extracted pectin, as well as the surface morphology and interior structure of the hydrogels. The swelling behavior and water retention in sandy soil have been investigated. In addition to the hydrogels’ potential to control and reduce pesticide loss, the herbicide Picloram is a model compound. The results show that the hydrogels have important swelling, up to 300%, and a capacity to retain water, preserve, and increase the water content in sandy soil up to 12 days. Picloram experiments show that hydrogels can limit herbicide mobility for up to 30 days under controlled conditions. The conversion of food wastes to highly valuable materials is a promising approach to optimize the water consumption and the loss of agrochemicals regarding sustainable agriculture.

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“…It should be emphasized that biodegradable polymers indicate different course and rate of degradation, which depends mainly on the chemical structure of macromolecules, which in turn determines water solubility, thermal resistance, chemical activity and resistance to enzymes. The relationship between the chemical structure of polymers and their degradability depending on various external factors has been demonstrated in many studies [23][24][25][26][27][28][29][30]. In addition to biodegradation by microorganisms, other types of degradation can also be distinguished, including thermal degradation at elevated temperatures, mechanical degradation caused by prolonged stress, oxidative degradation in oxygen-containing atmospheres, photodegradation caused by light radiation, hydrolytic degradation caused by high humidity, corrosion caused by chemical activity and degradation caused by high-energy electromagnetic radiation (e.g., UV) [22,[31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Study on the Biodegradation of Poly(Butylene Succinate)/Wheat Bran Biocomposites

Sasimowski,

Majewski,

Grochowicz

2023

Materials

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This paper presents the results of a study investigating the biodegradation of poly(butylene succinate) (PBS)/wheat bran (WB) biocomposites. Injection mouldings were subjected to biodegradation in compost-filled bioreactors under controlled humidity and temperature conditions. The effects of composting time (14, 42 and 70 days) and WB mass content (10%, 30% and 50% wt.) on the structural and thermal properties of the samples were investigated. Measurements were made by infrared spectral analysis, scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, and gel permeation chromatography. Results demonstrated that both the thermal and structural properties of the samples depended greatly on the biodegradation time. Specifically, their crystallinity degree increased significantly while molecular mass sharply decreased with biodegradation time, whereas their thermal resistance only showed a slight increase. This resulted from enzymatic hydrolysis that led to the breakdown of ester bonds in polymer chains. It was also found that a higher WB content led to a higher mass loss in the biocomposite samples during biodegradation and affected their post-biodegradation properties. A higher bran content increased the degree of crystallinity of the biocomposite samples but reduced their thermal resistance and molecular mass.

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Biodegradation of polysaccharides, polyesters and proteins in soil based on the determination of produced carbon dioxide

Cited by 5 publications

References 20 publications

Biodegradation Study of Styrene–Butadiene Composites with Incorporated Arthrospira platensis Biomass

Biodegradation Study of Styrene–Butadiene Composites with Incorporated Arthrospira platensis Biomass

From Fruit Waste to Hydrogels for Agricultural Applications

Study on the Biodegradation of Poly(Butylene Succinate)/Wheat Bran Biocomposites

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