Biodegradability under marine conditions of bio-based and petroleum-based polymers as substitutes of conventional microparticles

Cheng, Jingguang; Eyheraguibel, B.; Jacquin, Justine; Pujo‐Pay, Mireille; Conan, Pascal; Barbe, Valérie; Hoypierres, Julia; Deligey, Gaëlle; Halle, Alexandra ter; Bruzaud, Stéphane; Ghiglione, Jean-François; Meistertzheim, Anne-Leïla

doi:10.1016/j.polymdegradstab.2022.110159

Cited by 23 publications

(10 citation statements)

References 67 publications

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“…Thus, Figure 3 shows that the BOD 5 parameter progressively decreases over time for the five different experimental groups, where the curves with the steepest slopes (−17.129 and −15.671) belong to the groups with 8 and 10% inoculum, respectively, which shows that these two concentrations of inoculum degrade organic matter at a faster rate, with decreases ranging from 300 to 66 mg O 2 /L (8% inoculum) and from 286 to 40 mgO 2 /L (10% inoculum). Said variation would indicate that the diesel oil is being consumed by these bacteria since, by requiring a smaller amount of oxygen for the oxidation of the organic matter present, it would correspond to the presence of a smaller amount of degradable organic matter [47].…”

Section: Discussionmentioning

confidence: 99%

Effect of Inoculum Concentration on the Degradation of Diesel 2 by a Microbial Consortium

et al. 2022

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The objective was to determine the effect of inoculum concentration on the degradation of Diesel 2 by a microbial consortium called BIOT.PD001. For this, five systems were designed (in triplicate), which Contained Davis Minimum Medium, 5% Diesel 2 as a carbon source, and a suspension of the microbial consortium BIOT.PD001 (9 × 108 cells/mL) in concentrations of 2, 4, 6, 8, and 10% of the final volume. The monitoring of the degradation of Diesel 2 was carried out indirectly through the bacterial counts by the plate count method, the Biochemical Oxygen Demand (BOD5) by the Winkler Method modified according to Alsterberg, and the concentration of total fats by Gerber’s method. The retention time was 15 days. It was observed that the percentage of efficiency of the process increases as the concentration of inoculum increases, obtaining the highest percentage of efficiency (94.77%) when using 10% of inoculum (v/v), while when using inoculum concentrations of 2 and 4% (v/v), the efficiency percentages are the lowest, (68.4 and 66.6%, respectively). On the other hand, the variance analysis indicated that there is a significant difference between the averages of these values. The regression analysis indicated that the inoculum concentration significantly affects the efficiency of Diesel 2 degradation and that this is 86% explained by a linear regression model. There is a linear relationship between the inoculum concentration of the BIOT.PD001 microbial consortium and the BOD5 tend to decrease as a function of time. It is concluded that the inoculum concentration significantly affects the efficiency of the degradation of Diesel 2 by the BIOT.PD001 consortium.

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Section: Discussionmentioning

confidence: 99%

Effect of Inoculum Concentration on the Degradation of Diesel 2 by a Microbial Consortium

et al. 2022

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“…For instance, the weight of PHBV microbeads decreased by 17% after the formation of a mature biofilm for two months and biodegradation for 60 days in seawater. 22 A study showed that the biodegradation rate of PHBV was 89.42% during 450 days of degradation in seawater. 44 Additionally, the PHBV film degraded slowly during immersion in the marine environment for 120 days and the weight loss was about 11%.…”

Section: Degradability Propertiesmentioning

confidence: 99%

“…21 Cheng et al examined the marine degradation of commercial PHBV microbeads through a two-phase stepwise experiment. 22 However, most current methods of producing PHBV microbeads rely on emulsification techniques requiring substantial amounts of toxic, harmful organic solvents. As an alternative, Choi et al demonstrated solvent-free melt-electrospray to prepare P3HB–4HB microbeads for skin exfoliation.…”

Section: Introductionmentioning

confidence: 99%

Green fabrication of PHBV microbeads using a dimethyl isosorbide solvent for skin exfoliators

You,

Zhou,

Jin

et al. 2023

Green Chem.

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“…1,2 Biodegradable polymers, considered the most effective alternatives to traditional petroleum-based plastics, have received significant attention from researchers around the world. 3,4 Typical examples are poly(lactic acid) (PLA), [5][6][7][8] poly(butylene adipate-co-terephthalate) (PBAT), [9][10][11] poly (ε-caprolactone) (PCL), [12][13][14] poly(butylene succinate) (PBS), [15][16][17] poly(propylene carbonate) (PPC), [18][19][20] etc. Owing to the advantages of good ductility, elongation at break, impact resistance, processability, and biodegradability, 21,22 PBAT, an aliphatic-aromatic copolyester, is one of the most widely used biodegradable polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Although the large‐scale application of disposable plastic packaging has brought great convenience to people's daily life, randomly discarded plastic packaging has caused serious environmental pollution problems (i.e., White pollution) in view of the difficulty of recycling 1,2 . Biodegradable polymers, considered the most effective alternatives to traditional petroleum‐based plastics, have received significant attention from researchers around the world 3,4 . Typical examples are poly(lactic acid) (PLA), 5–8 poly(butylene adipate‐co‐terephthalate) (PBAT), 9–11 poly(ε‐caprolactone) (PCL), 12–14 poly(butylene succinate) (PBS), 15–17 poly(propylene carbonate) (PPC), 18–20 etc.…”

Section: Introductionmentioning

confidence: 99%

Low‐cost and high‐performance poly(butylene adipate‐co‐terephthalate)/thermoplastic starch blends prepared by an eccentric rotor extruder: Morphology, rheological behavior, thermal and mechanical properties

Xu,

Li,

Yan

et al. 2023

J of Applied Polymer Sci

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Due to similar processing and mechanical properties, poly(butylene adipate‐co‐terephthalate) (PBAT) is expected to be a fully‐biodegradable alternative to low‐density polyethylene (LDPE) packaging films, thereby alleviating environmental pollution caused by waste packaging films. However, the higher price of PBAT limits its large‐scale practical application in the packaging field. Blending with thermoplastic starch (TPS) to prepare PBAT/TPS blends can reduce the cost. In this work, the PBAT/TPS blends with different compositions were prepared using a novel eccentric rotor extruder dominated by an extensional flow field. With increasing the TPS content, a transition from the sea‐island phase structure to the bicontinuous phase structure occurred near the composition ratio of 50/50. Moreover, the dynamic mechanical analysis results showed that the compatibility between PBAT and TPS first improved and then deteriorated as the TPS content increased. As a result, the elongation at break first decreased slightly from ~1585% for the PBAT/TPS(90/10) blend to ~1263% for the PBAT/TPS(70/30) blend and dropped sharply to ~130% for the PBAT/TPS(40/60) blend. The knowledge obtained from this study will help us further understand the effect of the TPS phase on the micro‐morphology and macro‐properties of the PBAT/TPS blends, which is important for the future preparation of high‐performance PBAT/TPS blends.

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Biodegradability under marine conditions of bio-based and petroleum-based polymers as substitutes of conventional microparticles

Cited by 23 publications

References 67 publications

Effect of Inoculum Concentration on the Degradation of Diesel 2 by a Microbial Consortium

Effect of Inoculum Concentration on the Degradation of Diesel 2 by a Microbial Consortium

Green fabrication of PHBV microbeads using a dimethyl isosorbide solvent for skin exfoliators

Low‐cost and high‐performance poly(butylene adipate‐co‐terephthalate)/thermoplastic starch blends prepared by an eccentric rotor extruder: Morphology, rheological behavior, thermal and mechanical properties

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