Biodegradation and hydrolysis rate of aliphatic aromatic polyester

Kijchavengkul, Thitisilp; Auras, Rafael; Rubino, Maria; Selke, Susan; Ngouajio, Mathieu; Fernandez, R. Thomas

doi:10.1016/j.polymdegradstab.2010.07.018

Cited by 276 publications

(168 citation statements)

References 35 publications

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“…Composting is characterized by an enzymatically catalyzed hydrolysis of organic macromolecules, such as proteins and lignin. The first step of decomposition is a surface erosion process that leads to the formation of water-soluble intermediates [17], which are then assimilated and metabolized by microbial cells. As composting proceeds, phenyl-containing proteins (i.e., phenylalanine, tyrosine, and tryptophan) are hydrolyzed into peptides or amino acids, which increase the amount of water-soluble aromatic compounds.…”

Section: Uv-vis Spectramentioning

confidence: 99%

Structural transformation study of water-extractable organic matter during the industrial composting of cattle manure

Jiang

et al. 2013

Microchemical Journal

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Section: Uv-vis Spectramentioning

confidence: 99%

Structural transformation study of water-extractable organic matter during the industrial composting of cattle manure

Jiang

et al. 2013

Microchemical Journal

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“…However, the waste fiber has not been suitably recycled after industrial production. Some biodegradable polymers such as starch, poly(vinyl alcohol) (PVA), poly(butylene adipate-co-terephthalate) (PBAT), poly(butylene succinate-co-adipate) (PBSA), and poly(lactic acid) (PLA) have been used to prepare biodegradable agricultural films [13,14,[16][17][18][19][20]. Some films based on natural fibers and polymers were also prepared, such as an orange fiber residue/PVA film [21] and an Osage orange wood/PLA film [10].…”

Section: Introductionmentioning

confidence: 99%

Physical and Degradable Properties of Mulching Films Prepared from Natural Fibers and Biodegradable Polymers

Tan

Wang

et al. 2016

Applied Sciences

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Abstract:The use of plastic film in agriculture has the serious drawback of producing vast quantities of waste. In this work, films were prepared from natural fibers and biodegradable polymers as potential substitutes for the conventional non-biodegradable plastic film used as mulching material in agricultural production. The physical properties (e.g., mechanical properties, heat preservation, water permeability, and photopermeability) and degradation characteristics (evaluated by micro-organic culture testing and soil burial testing) of the films were studied in both laboratory and field tests. The experimental results indicated that these fiber/polymer films exhibited favorable physical properties that were sufficient for use in mulching film applications. Moreover, the degradation degree of the three tested films decreased in the following order: fiber/starch (ST) film > fiber/poly(vinyl alcohol) (PVA) film > fiber/polyacrylate (PA) film. The fiber/starch and fiber/PVA films were made from completely biodegradable materials and demonstrated the potential to substitute non-biodegradable films.

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“…Aerobic decomposition is characterized by an enzymatically catalyzed hydrolysis of organic macromolecules, such as lignin [33]. The first step of decomposition is a surface erosion process that leads to the formation of water-soluble intermediates [34], which are then assimilated and metabolized by microbial cells. However, BIX values showed a decrease in the early stage of fermentation, where values were reduced to less than 0.6 from the 9th to the 12th day, indicating little biological material.…”

Section: Characterization Of Effluent Dommentioning

confidence: 99%

Characterization of Dissolved Organic Matter from Effluents in a Dry Anaerobic Digestion Process Using Spectroscopic Techniques and Multivariate Statistical Analysis

Guo

Chen

et al. 2016

Waste Biomass Valor

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Dissolved organic matter (DOM) collected from a garage-type dry fermentation system was investigated using UV-Vis absorption and fluorescence spectroscopy. Spectral parameters A 253/203 , biological index and fluorescence index were used to assess the structural characteristics and sources of effluent DOM. The results showed that aromatic rings highly substituted with hydroxyl, carbonyl, ester and carboxylic groups were obtained in the aerobic decomposition stage, and microbially derived organic matter dominated in the dry anaerobic digestion process, suggesting that the hydrolysis of organic macromolecules (lignin) in the aerobic decomposition resulted in the formation of water-soluble intermediates which can be easily assimilated and metabolized by microbial cells in dry anaerobic digestion process. PARAFAC of the excitation-emission matrix spectra revealed five fluorescent components occurring in effluent DOM: four humic-like components (C1-C4) and one protein-like component (C5). The F max values of components 1, 2, 3 and 5 showed large fluctuation than that of component C4, suggested the formation and degradation of these components. Component C4, with high aromatic content and higher degree of humification, was more difficult to be utilized and degraded by microorganisms than other components. The PAR-AFAC-PCA displayed three PCA factors (factors 1, 2 and 3), which accounted for 34.51, 34.20 and 31.11 %, respectively, of the variance in fluorescent components. Humic-like component C4 showed positive factor 1 loadings. Factor 2 was mainly explained by the tryptophan-like component C5. The humic-like components 1, 2 and 3 concurrently showed a relatively high factor 3 loading. The PARAFAC-PCA in this study could separate the characteristics of the DOM fluorescent component namely the source strength of the humic-like components versus the contributions of protein-like components in the total fluorescence analyses.

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Biodegradation and hydrolysis rate of aliphatic aromatic polyester

Cited by 276 publications

References 35 publications

Structural transformation study of water-extractable organic matter during the industrial composting of cattle manure

Structural transformation study of water-extractable organic matter during the industrial composting of cattle manure

Physical and Degradable Properties of Mulching Films Prepared from Natural Fibers and Biodegradable Polymers

Characterization of Dissolved Organic Matter from Effluents in a Dry Anaerobic Digestion Process Using Spectroscopic Techniques and Multivariate Statistical Analysis

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