Mass spectral characterisation of cyclic oligoesters in a biodegradable mulch film DOI Creative Commons

Charlie Monkley,

Michaela Reay, Richard P. Evershed

и другие.

Rapid Communications in Mass Spectrometry, Год журнала: 2024, Номер 38(10)

Опубликована: Март 25, 2024

Rationale Plastic mulch film manages weed growth and moisture loss on the surface of cropping beds. The chemical components such plastics include polymer(s), additives non‐intentionally added substances (NIASs). unknown nature behaviours these constituents require investigation due to their potential add anthropogenic burden in agrifood system. Methods Solvent extracts a commercial 15% polylactic acid (PLA)/85% poly(butylene adipate‐ co ‐terephthalate) were investigated using gas chromatography–mass spectrometry (GC–MS) with electron ionisation characterise additive NIAS components. obscurity some NIASs meant identification was not readily achieved through routine MS library comparisons. As such, several polymer‐derived compounds required interpretation data re‐application derived fragmentation patterns reference wider literature. Unknowns confirmed commercially available compounds. Results Unknown identified as cyclic oligoesters comprised monomeric building blocks polymer Cyclic structures from monomers polybutylene adipate (PBA) terephthalate (PBT) fragmented primary pathway involving 1,5‐ 1,3‐H transfers at ester linkages. Characteristic ions m/z 111, 129, 183 201 for PBA‐derived 104, 132, 149 221 PBT‐derived assigned mass spectra unknowns. containing sebacate moieties also identified, indicating presence an unexpected component mulch. Conclusions Systematic analyses sort reported here are valuable providing alternative approaches plastic‐related chemicals. Open publication spectral is build greater understanding contributing environmental load introduced agroecosystems.

Язык: Английский

Arthrobacter is a universal responder to di-n-butyl phthalate (DBP) contamination in soils from various geographical locations DOI

Xiao Kong,

Zhanbing Bai,

Tuo Jin

и другие.

Journal of Hazardous Materials, Год журнала: 2021, Номер 422, С. 126914 - 126914

Опубликована: Авг. 14, 2021

Язык: Английский

Процитировано

33
Uptake pathways of phthalates (PAEs) into Chinese flowering cabbage grown in plastic greenhouses and lowering PAE accumulation by spraying PAE-degrading bacterial strain DOI Creative Commons

Li-Juan Zeng,

Yuhong Huang,

Huixiong Lü

и другие.

The Science of The Total Environment, Год журнала: 2022, Номер 815, С. 152854 - 152854

Опубликована: Янв. 4, 2022

Язык: Английский

Процитировано

22
Phthalate Esters Metabolic Strain Gordonia sp. GZ-YC7, a Potential Soil Degrader for High Concentration Di-(2-ethylhexyl) Phthalate DOI Creative Commons
Tong Hu, Yang Chen,

Zhengyu Hou

и другие.

Microorganisms, Год журнала: 2022, Номер 10(3), С. 641 - 641

Опубликована: Март 17, 2022

As commonly used chemical plasticizers in plastic products, phthalate esters have become a serious ubiquitous environmental pollutant, such as soil of film mulch culture. Microbial degradation or transformation was regarded suitable strategy to solve the pollution. Thus, new degrading strain Gordonia sp. GZ-YC7 isolated this study, which exhibited highest di-(2-ethylhexyl) efficiency under 1000 mg/L and strongest tolerance 4000 mg/L. The comparative genomic analysis results showed that there exist diverse esterases for various dibutyl GZ-YC7. This genome characteristic possibly contributes its broad substrate spectrum, high efficiency, esters. has potential bioremediation polluted environments.

Язык: Английский

Процитировано

22
Effects of fertilizer application on phthalate ester pollution and the soil microbial community in plastic-shed soil on long-term fertilizer experiment DOI
Zhou Bin,

Xianqing Zheng,

Zhengyi Zhu

и другие.

Chemosphere, Год журнала: 2022, Номер 308, С. 136315 - 136315

Опубликована: Сен. 7, 2022

Язык: Английский

Процитировано

20
Mass spectral characterisation of cyclic oligoesters in a biodegradable mulch film DOI Creative Commons

Charlie Monkley,

Michaela Reay, Richard P. Evershed

и другие.

Rapid Communications in Mass Spectrometry, Год журнала: 2024, Номер 38(10)

Опубликована: Март 25, 2024

Rationale Plastic mulch film manages weed growth and moisture loss on the surface of cropping beds. The chemical components such plastics include polymer(s), additives non‐intentionally added substances (NIASs). unknown nature behaviours these constituents require investigation due to their potential add anthropogenic burden in agrifood system. Methods Solvent extracts a commercial 15% polylactic acid (PLA)/85% poly(butylene adipate‐ co ‐terephthalate) were investigated using gas chromatography–mass spectrometry (GC–MS) with electron ionisation characterise additive NIAS components. obscurity some NIASs meant identification was not readily achieved through routine MS library comparisons. As such, several polymer‐derived compounds required interpretation data re‐application derived fragmentation patterns reference wider literature. Unknowns confirmed commercially available compounds. Results Unknown identified as cyclic oligoesters comprised monomeric building blocks polymer Cyclic structures from monomers polybutylene adipate (PBA) terephthalate (PBT) fragmented primary pathway involving 1,5‐ 1,3‐H transfers at ester linkages. Characteristic ions m/z 111, 129, 183 201 for PBA‐derived 104, 132, 149 221 PBT‐derived assigned mass spectra unknowns. containing sebacate moieties also identified, indicating presence an unexpected component mulch. Conclusions Systematic analyses sort reported here are valuable providing alternative approaches plastic‐related chemicals. Open publication spectral is build greater understanding contributing environmental load introduced agroecosystems.

Язык: Английский

Процитировано

5