Simultaneous determination of seven preservatives in food by dispersive liquid-liquid microextraction coupled with gas chromatography-mass spectrometry

Ding, Mingzhen; Liu, Weixi; Peng, Jing; Liu, Xiuhong; Tang, Yefeng

doi:10.1016/j.foodchem.2018.07.002

Cited by 45 publications

(14 citation statements)

References 19 publications

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“…Measuremnts was collected at mass range (m/z 110-460) with the settings (+ive ionization mode, 4.7 kV, 280 °C capillary temperature, 35 au sheath gas flow rate and 28 au Aux Ga flow rate). For method validation, known quantities of the standard phytoalexins to RE and LE were analyzed using HPLC coupled MS (Ding et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Yousaf

Hussain

Hamayun

et al. 2019

Preprint

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16Besides acting as growth inducing molecule, Gibberellin (GA 3 ) also confers the compatibility 17 of microbial interactions with host. We inoculated 11 days old Z. mays seedlings grown under 18 hydroponic conditions and high GA 3 levels with Bipolaris sorokiniana (BIPOL) at the spore 19 density (SD) of OD 0.6 . The high level of GA 3 negatively affected the growth of the seedlings, 20 accompanied by the high level of stress deducing secondary metabolites (proline, total 21 flavanoids, phenylpropanoids, and glucosinolides). Moreover, high level of GA 3 produced a 22 hypersensitive response (HR) in the seedlings. The HR developed cross talks with IAA and 23 trans-zeatins and triggered higher production of hypersensitive inducing biomolecules. The 24 other HR co-related biological processes were demonstrated by high phytoalexins level and 25 high protease activities. Such activities ultimately inhibited the colonization of BIPOL on the 26 roots of maize seedlings. The products of the genes expressed at high GA 3 also conferred the 27 deterrence of BIPOL colonization at SD = OD 0.6 . Intriguingly, when we inhibited GA 3 28 biosynthesis in the seedlings with aerially sprayed uniconizole, prior to BIPOL treatment, the 29 BIPOL colonized and subsequently promoted the seedling growth. This low level of GA 3 30 after BIPOL treatment checked the high level of secondary metabolites and hypersensitivity 31 inducing molecules. The results, thus suggested that the aforementioned processes only 32 happened in the BIPOL at SD (OD 0.6 ), whereas the SD at lower levels (OD 0.2 or OD 0.4 ) 33 neither promoted the growth of uniconizole pre-treated seedlings nor produced HR in control 34 seedlings of maize plant.35

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Section: Methodsmentioning

confidence: 99%

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Yousaf

Hussain

Hamayun

et al. 2019

Preprint

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“…The liquid‐based microextraction methods use microliter‐level solvent and are represented by single‐drop‐based liquid‐phase microextraction (LPME), hollow fiber‐supported liquid phase microextraction (HF–LPME), electromembrane extraction (EME) and dispersive liquid–liquid microextraction (DLLME). Both solid‐based and liquid‐based microextraction methods found numerous applications in the fields of environmental analysis (Lee & Lee, ; Shi & Lee, ), food analysis (Abreu et al, ; Ding, Liu, Peng, Liu, & Tang, ) and bioanalysis (Ocana‐Gonzalez, Fernandez‐Torres, Bello‐Lopez, & Ramos‐Payan, ). Adapting analytical methods based on microextraction has attracted increasing interest in forensic toxicology practices in recent years (He et al, ; He, ; Mercieca, Odoardi, Cassar, & Rossi, ).…”

Section: Classification Of Microextraction Methodsmentioning

confidence: 99%

Microextraction sample preparation techniques in forensic analytical toxicology

Concheiro

2018

Biomedical Chromatography

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Sample preparation is a critical step in forensic analytical toxicology. Different extraction techniques are employed with the goals of removing interferences from the biological samples, such as blood, tissues and hair, reducing matrix effects and concentrating the target analytes, among others. With the objective of developing faster and more ecological procedures, microextraction techniques have been expanding their applications in the recent years. This article reviews various microextraction methods, which include solid-based microextraction, such as solidphase microextraction, microextraction by packed sorbent and stir-bar sorptive extraction, and liquid-based microextraction, such as single drop/hollow fiber-based liquid-phase microextraction and dispersive liquid-liquid microextraction, as well as their applications to forensic toxicology analysis. The development trend in future microextraction sample preparation is discussed.

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“…Despite the high sensitivity, the liquid chromatography methods present some drawbacks, especially in regard to the acquisition and operational costs, and in general, they are not in agreement with the concept of green analytical chemistry. Also, other methods are reported in the literature, including gas chromatography (3,(13)(14)(15) and capillary electrophoresis (CE) (16)(17)(18)(19). Therefore, it is important and essential to developing methods that are simple, quick, and economical to determine sorbate and benzoate in food products.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Sorbate and Benzoate Content in Mustard, Ketchup and Tomato Sauce by Sub-Minute Capillary Electrophoresis

Pereira

Betta

Seraglio

et al. 2021

Food Technol. Biotechnol. (Online)

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Research background. Sorbate and benzoate are important preservatives in food products, but these compounds can also have genotoxic effects, causing health risks to their consumers. In this regard, this study aims to determine the concentrations of sorbate and benzoate in Brazilian samples of mustard, ketchup and tomato sauce using a sub-minute capillary electrophoresis method adequately validated. Experimental approach. In this study, sorbate and benzoate were evaluated in sauces samples by capillary electrophoresis using a simple sample preparation procedure. Previously, the method was validated according to Eurachem guidelines, and its greenness was assessed by Eco-scale. Results and conclusions. The fitness for purpose of the method, as well as its suitability for the analysis of the studied matrixes and its agreement with the principles of green chemistry were checked and confirmed. Also, according to our findings, among the 30 commercial samples assessed, six of them presented some mislabelling or non-compliance with European or Brazilian legislation, reinforcing the constant need for quality assessment and surveillance of food products. Novelty and scientific contribution. So far, few studies have been found related to investigating these preservatives in these types of foods, highlighting the significance and contribution of this manuscript to the improvement of knowledge in the field.

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Simultaneous determination of seven preservatives in food by dispersive liquid-liquid microextraction coupled with gas chromatography-mass spectrometry

Cited by 45 publications

References 19 publications

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Phytohormonal cross-talk modulate Bipolaris sorokiniana (Scc.)interaction with Zea mays

Microextraction sample preparation techniques in forensic analytical toxicology

Assessment of Sorbate and Benzoate Content in Mustard, Ketchup and Tomato Sauce by Sub-Minute Capillary Electrophoresis

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