Bioprocess optimization platform for valorization of poly(lactic)-based bioplastic waste using PLA-degrading actinobacteria, Saccharothrix sp. MY1 cultured in silk wastewater as low-cost nutrient source

Pathom-aree, Wasu; Butbunchu, Natthicha; Jaito, Nongluck; Suwannarangsee, Surisa; Srinuanpan, Sirasit

doi:10.1007/s13399-022-03524-8

Cited by 3 publications

(3 citation statements)

References 64 publications

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“…Moreover, the R 2 value achieved in this study for the model was 0.8432 ( Table 2 ), indicating that the quadratic model reliably predicted approximately 84.32 % of the response. This was supported by the strong correlation and agreement observed between the experimental values and the values calculated from the quadratic model [30] . Additionally, the adequacy of precision was evaluated by the signal-to-noise ratio, which should exceed 4.0 to indicate a sufficiently discriminative model [29] .…”

Section: Resultssupporting

confidence: 68%

Value-added green biorefinery co-products from ultrasonically assisted DES-pretreated Chlorella biomass

Wichaphian,

Sriket,

Sensupa

et al. 2023

Ultrasonics Sonochemistry

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Section: Resultssupporting

confidence: 68%

Value-added green biorefinery co-products from ultrasonically assisted DES-pretreated Chlorella biomass

Wichaphian,

Sriket,

Sensupa

et al. 2023

Ultrasonics Sonochemistry

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“…Cysteine-type endopeptidase belongs to cysteine proteases, which also accounts for most of the digestive activity in Coleopteran insects . In a previous study, serine endopeptidase was reported to be capable of degrading PLA . Cysteine-rich proteins have been reported to increase the enzymatic hydrolysis of PET by facilitating easy accessibility to PET polymers .…”

Section: Resultsmentioning

confidence: 99%

“…74 In a previous study, serine endopeptidase was reported to be capable of degrading PLA. 75 Cysteine-rich proteins have been reported to increase the enzymatic hydrolysis of PET by facilitating easy accessibility to PET polymers. 76 Cysteine protease can also be used for polyamide textile modification.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Molecular-Weight-Dependent Degradation of Plastics: Deciphering Host–Microbiome Synergy Biodegradation of High-Purity Polypropylene Microplastics by Mealworms

He,

Ding,

Yang

et al. 2024

Environ. Sci. Technol.

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The biodegradation of polypropylene (PP), a highly persistent nonhydrolyzable polymer, by Tenebrio molitor has been confirmed using commercial PP microplastics (MPs) (M n 26.59 and M w 187.12 kDa). This confirmation was based on the reduction of the PP mass, change in molecular weight (MW), and a positive Δδ 13 C in the residual PP. A MW-dependent biodegradation mechanism was investigated using five high-purity PP MPs, classified into low (0.83 and 6.20 kDa), medium (50.40 and 108.0 kDa), and high (575.0 kDa) MW categories to access the impact of MW on the depolymerization pattern and associated gene expression of gut bacteria and the larval host. The larvae can depolymerize/biodegrade PP polymers with high MW although the consumption rate and weight losses increased, and survival rates declined with increasing PP MW. This pattern is similar to observations with polystyrene (PS) and polyethylene (PE), i.e., both M n and M w decreased after being fed low MW PP, while M n and/or M w increased after high MW PP was fed. The gut microbiota exhibited specific bacteria associations, such as Kluyvera sp. and Pediococcus sp. for high MW PP degradation, Acinetobacter sp. for medium MW PP, and Bacillus sp. alongside three other bacteria for low MW PP metabolism. In the host transcriptome, digestive enzymes and plastic degradation-related bacterial enzymes were up-regulated after feeding on PP depending on different MWs. The T. molitor host exhibited both defensive function and degradation capability during the biodegradation of plastics, with high MW PP showing a relatively negative impact on the larvae.

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Advances in microbial exoenzymes bioengineering for improvement of bioplastics degradation

Rahmati,

Sethi,

Shu

et al. 2024

Chemosphere

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Bioprocess optimization platform for valorization of poly(lactic)-based bioplastic waste using PLA-degrading actinobacteria, Saccharothrix sp. MY1 cultured in silk wastewater as low-cost nutrient source

Cited by 3 publications

References 64 publications

Value-added green biorefinery co-products from ultrasonically assisted DES-pretreated Chlorella biomass

Value-added green biorefinery co-products from ultrasonically assisted DES-pretreated Chlorella biomass

Molecular-Weight-Dependent Degradation of Plastics: Deciphering Host–Microbiome Synergy Biodegradation of High-Purity Polypropylene Microplastics by Mealworms

Advances in microbial exoenzymes bioengineering for improvement of bioplastics degradation

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