Microbial degradation of poly(butylene succinate) by Fusarium solani in soil environments

Influencing Factors and Process on <i>in Situ</i> Degradation of Poly(<i>Butylene Succinate</i>) Film by Strain <i>Bionectria ochroleuca</i> BFM-X1 in Soil

“…The results were similar to those of Ishii et al, who used a glass bottle with a PBS film, a microorganism strain and soil [7]. The degradability of strain Bionectria ochroleuca BFM-X1 against PBS in a sterile soil environment was much stronger than that of the Fusarium solani strain WF-6 isolated by Abe et al, which only degraded 2.8% of PBS after 14 d in a sterile soil environment [19].…”

“…This result was also supported by Kasuya et al, who reported that the environmental biodegradation rate of PBS was much lower than that of other biodegradable plastics such as poly (ε-caprolactone) (PCL) or poly(3-hydroxybutyrate) (P (3HB)) and also depended on the ambient environmental conditions [20]. Abe et al suggested that the degradeability of F. solani strain WF-6 strongly depended on the cell density level of the indigenous microorganisms and that the degradation was remarkably diminished when the cell concentration level increased [19]. Our study revealed that the in situ degradation of PBS film was slow in comparison to an indoor soil environment.…”

Polyethylene and biodegradable mulches for agricultural applications: a review

“…Additionally, enzymatic degradation of low molecular weight polylactic acid (molecular weight ∼2,000) has been shown using esterase-type enzymes such as Rhizopus delemer lipase (Fukuzaki et al 1989). Abe et al (2010) isolated a microorganism possessing the ability to degrade one of the promising biodegradable plastics, PBS, and investigated the degradation characteristics of the microorganism in soil environments. Fungal strain WF-6, belonging to Fusarium solani, that had not been reported could be isolated from farmland as the PBS-degrading microorganism.…”

Phylloplane Fungal Enzyme Accelerate Decomposition of Biodegradable Plastic Film in Agricultural Settings

“…Furthermore, as scissions in polymer chains decreased the mechanical strength of the films, crack lengths increased with duration following enzyme treatments. Moreover, the molecular structure of PBSA degrades more easily than PBS (Abe et al 2010, Baker et al 2012, but application of the moistureretaining agent and enzyme solution enhanced the degradation of PBS more than other types of film. This may have been partially due to PBS having lower flexibility than PBSA film (Xu and Guo 2010), and tensile stress caused by desiccation and shrinkage of the treated moisture-retaining agents that adhered to the film may have increased the physical deterioration of the PBS film.…”