Commercial yerba mate (Ilex paraguariensis) produced in South America: Determination of dithiocarbamate residues by gas chromatography-mass spectrometry

Silva, Rosselei Caiel da; Santos, Ingrid Duarte dos; Neu, Júlia Paula; Wouters, Robson Dias; Fontana, Marlos Eduardo Zorzella; Balbinot, Priscila Dotto Rosa; Wagner, Róger; Pizzutti, Ionara Regina

doi:10.1016/j.foodchem.2022.133513

Cited by 17 publications

(6 citation statements)

References 26 publications

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“…Sayed et al 24 obtained a LOQ of 0.05 mg kg −1 for EBDC and 0.03 mg kg −1 CS 2 for chamomile (dry herb) by UHPLC-MS/MS and as far as we know, there are no other studies in the literature on the specific determination of dithiocarbamates in herbs using this technique. A method for determining dithiocarbamates in yerba mate ( Ilex paraguariensis ) by GC-MS (as CS 2 ) was validated by da Silva et al , 43 with a LOQ of 0.1 mg kg −1 (extraction with isooctane, tin chloride II, and hydrochloric acid).…”

Section: Resultsmentioning

confidence: 99%

Determination of ethylene-bis-dithiocarbamates and their degradation product ethylenethiourea in dry herbs by UHPLC-MS/MS

Mello,

Caldas

2024

Anal. Methods

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Section: Resultsmentioning

confidence: 99%

Determination of ethylene-bis-dithiocarbamates and their degradation product ethylenethiourea in dry herbs by UHPLC-MS/MS

Mello,

Caldas

2024

Anal. Methods

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“…This process can be strengthened depending on the soil pH and strong acidic media (pH < 5.5) favors the absorption of metallic species by the roots [19,44]. However, other factors may also impact the levels of trace elements in tea plants, such as leaves age, sunlight exposure, moisture, genetics, region of cultivation, use of fertilizer and pesticides containing Mn in their composition (dithiocarbamate fungicides), pollutants, air pollution, among others [19,21,43,45]. Therefore, these mentioned factors could account for the differences in total Mn contents found in the RM and GM samples and in the hot infusions of mate analyzed in this work (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Assessment on Solubility and Solid Phase Chemical Fractionation of Manganese in Hot Infusions of Green and Roasted Mate

Leoncio

Garcia

2023

Biol Trace Elem Res

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A solid phase chemical fractionation (SPCF) of the Mn in hot infusions prepared from commercial samples of roasted (RM) and green mate (GM) using a chelating resin Chelex 100 (NH4+ form) was performed to assess the relative lability of this essential trace element (ETE). In addition, total Mn contents in the RM and GM samples and their infusions were determined by ame atomic absorption spectrometry. Furthermore, total polyphenol (TP) contents and the presencde of soluble melanoidins (SM) were correlated with the Mn solubility in the RM and GM infusions. From the SPCF study, it was possible to observe that the soluble Mn forms in the mate infusions were essentially associated to relatively noninert chemical species (98.4-99.7%), suggesting that they may be potentially bioavailable. In addition, the soluble Mn contents in the GM infusions were 20.5% higher than those found in the RM. Furthermore, Mn solubility in the (RM) infusions was highly and directly correlated (r = 0.99) with the soluble TP, while in the GM infusions it was high and inversely correlated with soluble TP (r = -0.87). On the other hand, Mn solubility in the RM and GM infusions were weakly correlated with the SM. It should be stressed GM infusions can contribute with 56.7% and 44.4% more than the RM infusions to the recommended adequate intake of Mn established for females and males, respectively. Moreover, this work is the rst to evaluate and compare the relative lability of Mn and its solubility in the RM and GM infusions.

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“…Mixtures of primary secondary amine (PSA) and graphitized carbon black (GCB) were tested to remove pigments (mostly chlorophyll), sugars, lipids, flavonoids, acids, and carotenoids. 34…”

Section: Methodsmentioning

confidence: 99%

“…Thus, a sample injected at the beginning and at the end of the sequence can present signicant deviations in results, decreasing the accuracy and precision of the method. 34 To improve method performance, different sorbent quantities were compared via recovery experiments, applying the following spike levels for mycotoxins groups: group 1: 2 and 20 mg kg −1 ; group 2: 100 and 1000 mg kg −1 ; and for pesticides: 10 and 70 mg kg −1 , n = 3.…”

Section: Clean-up Optimizationmentioning

confidence: 99%

Comprehensive assessment of clean-up strategies for optimizing an analytical multi-method to determine pesticides and mycotoxins in Brazilian medicinal herbs using QuEChERS-LC-TQ-MS/MS

Zorzella Fontana,

Caiel da Silva,

Duarte dos Santos

et al. 2024

Anal. Methods

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Commercial yerba mate (Ilex paraguariensis) produced in South America: Determination of dithiocarbamate residues by gas chromatography-mass spectrometry

Cited by 17 publications

References 26 publications

Determination of ethylene-bis-dithiocarbamates and their degradation product ethylenethiourea in dry herbs by UHPLC-MS/MS

Determination of ethylene-bis-dithiocarbamates and their degradation product ethylenethiourea in dry herbs by UHPLC-MS/MS

Assessment on Solubility and Solid Phase Chemical Fractionation of Manganese in Hot Infusions of Green and Roasted Mate

Comprehensive assessment of clean-up strategies for optimizing an analytical multi-method to determine pesticides and mycotoxins in Brazilian medicinal herbs using QuEChERS-LC-TQ-MS/MS

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