Competitive Sorption−Desorption Behavior of Triazine Herbicides with Plant Cuticular Fractions

Shechter, Michal; Xing, Baoshan; Kopinke, Frank‐Dieter; Chefetz, Benny

doi:10.1021/jf0614488

Cited by 29 publications

(34 citation statements)

References 38 publications

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“…Cutin biodegradation has been observed by Kögel-Knabner et al (1989) andStimler et al (2006). Though this process (depolymerization) does not significantly affect the amount of organic matter, the sorption capability of the system is drastically decreased due to the high sorptive capacity of the cutin (Chamel and Vitton 1996;Chefetz 2003;Chen et al 2005;Shechter et al 2006).…”

Section: Resultsmentioning

confidence: 99%

“…In addition to the importance of plant cuticular matter as possible precursors for SOM, these and other natural aliphatic-rich materials have been recently reported as highly efficient natural sorbents for hydrophobic and polar organic compounds (Boyd et al 1990;Chefetz 2003;Chefetz et al 2000;Chen et al 2005;Kang and Xing 2005;Salloum et al 2002;Shechter et al 2006;Stimler et al 2006). In most cases, sorption of hydrophobic organic compounds (HOCs) by these sorbents, including plant cuticular materials, is in the same range or even higher than the sorption affinity values reported for aromatic-rich natural sorbents.…”

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confidence: 99%

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Decomposition and sorption characterization of plant cuticles in soil

Chefetz¹

2007

Plant Soil

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The sorption of organic compounds by plant cuticular matter has been extensively investigated; however, little has been studied regarding the effect of plant cuticle degradation on their role in the sorption of organic compounds in soils. The sorption of phenanthrene was studied in soil samples which had been incubated for up to 9 months with three different types of plant cuticle isolated from tomato fruits, pepper fruits and citrus leaves. The main change in the diffuse reflectance Fourier-transform infrared (DRIFT) spectra during incubation of the cuticles was related to cutin decomposition. The peaks assigned to methyl and ethyl vibration and C=O vibration in ester links decreased with decomposition. In general, with all samples, the phenanthrene sorption coefficients calculated for the whole incubated soils (K d ) decreased with incubation time. In contrast, the carbon-normalized K d values (K oc ) did not exhibit a similar trend for the different cuticles during incubation. The origin of the cuticle also affected the linearity of the sorption isotherms. With the tomato and citrus cuticle samples, the Freundlich N values were close to unity and were stable throughout incubation. However with the green pepper cuticle, the N values exhibited a significant decrease (from 0.98 to 0.70). This study demonstrates that the structural composition of the plant cuticle affects its biodegradability and therefore its ability to sorb organic compounds in soils. Of the residues originating from plant cuticular matter in soils, the cutan biopolymer and lignin-derived structures appear to play a dominant role in sorption as decomposition progresses.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Decomposition and sorption characterization of plant cuticles in soil

Chefetz¹

2007

Plant Soil

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“…Th e peak at 17.5 ppm can be assigned to terminal methyl groups (Swift , 1996), suggesting that SM-HA has more terminal methyl C than the other HAs and potentially greater reactivity. Th e sharp peak at around 31 ppm found in all the HAs represents carbons in long crystalline or condensed polymethylenic (CH 2 ) n chains (Kögel-Knabner et al, 1992;Shechter et al, 2006). Th is peak is more evident in SM-HA than in FM-HA and FS-HA, respectively.…”

Section: Cross-polarization Magic Angle Spinning Carbon-13 Nuclear Mamentioning

confidence: 95%

Molecular Composition of Humic Acids from Coastal Wetland Soils along a Salinity Gradient

Dodla

Wang

Cook

2012

Soil Science Society of America Journal

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Humic acids (HAs) play an important role in regulating the biogeochemistry of soils and sediments. The chemical structural composition of humic substances in wetland soils especially at coastal zone, which is subjected to the infl uence of seawater intrusion, is not yet fully understood. In this study, HAs from soils of three wetland ecosystems along a salinity gradient namely, a forest swamp (FS), freshwater marsh (FM), and saline marsh (SM), from the Barataria basin of the Louisiana coast were isolated and characterized using elemental analysis, 13C solid state nuclear magnetic resonance (NMR), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) with or without tetramethylammonium hydroxide (TMAH) treatment. Humic acids from the FS soil, the most inland of the three, showed the most aliphatic nature whereas HAs of the FM soil had the highest percentage of aromatics. There was a general increase in the crystalline domain of alkyl C in these wetland soil HAs along the salinity gradient. The Py-GC/MS TMAH thermochemolysis clearly showed a shift of lignin residues from the dominance of guaiacyl (G-type) and syringyl (S-type) structural units in FS HAs to p-hydroxyphenyl (H-type) structural unit in HAs of both marsh soils. In addition, there was a smaller Syringyl/Guaiacyl (S/G) ratio in the HAs of SM soil than FM soil, and an increasing contribution of sulfur compounds into theirHA structural component as moving toward the coast, suggesting the formation of increasingly more recalcitrant nature of HAs along the salinity gradient in these wetlands. The 13 C NMR observation was, in general, consistent with the Py-GC/MS characterization. Overall, the result reveals a clear effect of salinity and vegetation on the molecular composition of HAs.

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“…In the literature there are some examples of cutin extraction methods combining organic solvent extraction and acid hydrolysis [255,256]. In some cases, an additional pretreatment of tomato skins is performed, which consists of a heat treatment with oxalic acid and ammonium oxalate to remove the residual pulp, that can remain attached to the skins [257].…”

Section: Cutin Extraction From Tomato Skinsmentioning

confidence: 99%

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

Fritsch

Stäbler

Happel³

et al. 2017

Sustainability

147

102

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Abstract:The vast and ever-growing amount of agricultural and food wastes has become a major concern throughout the whole world. Therefore, strategies for their processing and value-added reuse are needed to enable a sustainable utilization of feedstocks and reduce the environmental burden. By-products of potato, tomato, cereals and olive arise in significant amounts in European countries and are consequently of high relevance. Due to their composition with various beneficial ingredients, the waste products can be valorized by different techniques leading to economic and environmental advantages. This paper focuses on the waste generation during industrial processing of potato, tomato, cereals and olives within the European Union and reviews state-of-the-art technologies for their valorization. Furthermore, current applications, future perspectives and challenges are discussed.

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Competitive Sorption−Desorption Behavior of Triazine Herbicides with Plant Cuticular Fractions

Cited by 29 publications

References 38 publications

Decomposition and sorption characterization of plant cuticles in soil

Decomposition and sorption characterization of plant cuticles in soil

Molecular Composition of Humic Acids from Coastal Wetland Soils along a Salinity Gradient

Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review

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