Carbon-Based Fe3O4 Nanocomposites Derived from Waste Pomelo Peels for Magnetic Solid-Phase Extraction of 11 Triazole Fungicides in Fruit Samples

Ren, Kewei; Zhang, Wenlin; Cao, Shurui; Wang, Guomin; Zhou, Zhiqin

doi:10.3390/nano8050302

Cited by 21 publications

(13 citation statements)

References 28 publications

(28 reference statements)

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“…The use of food by-products as sorbent phases in the extraction of vegetable matrices has been documented in the literature, and some interesting applications have been proposed [72][73][74]. The valorization of biomass that is normally discharged as food waste is an added value for this type of sorbent in view of the circular economy paradigm.…”

Section: Natural Sorbentsmentioning

confidence: 99%

New phases for analytical scale extraction from plants: Current and future trends

Mastellone

Marengo

Sgorbini

et al. 2021

TrAC Trends in Analytical Chemistry

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Analyses in the plant field have to cover a wide range of topics, starting from metabolomics to the quali-quantitative determination of a single or a class of metabolites, often dealing with very complex matrices. The development of an appropriate sample preparation method is fundamental to obtain complete information, because downstream analyses will detect only the metabolites previously extracted. The choice of the proper extraction phase is therefore of utmost importance and the most critical parameter to be considered. Although most of the studies on plants still mainly adopt traditional extraction techniques, a wide number of new phases with improved features in terms of tunability, selectivity and, most important, sustainability have been developed in the past decades and applied to the study of natural products. This review provides an overview of the new extraction phases developed and adopted for the study of plant endogenous and exogenous metabolites.

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Section: Natural Sorbentsmentioning

confidence: 99%

New phases for analytical scale extraction from plants: Current and future trends

Mastellone

Marengo

Sgorbini

et al. 2021

TrAC Trends in Analytical Chemistry

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“…Two approaches have been very recently proposed based on the use of pomelo peels. The one-pot synthesis pathway is very similar, using either a mixture of FeCl 3 -FeCl 2 [97] or FeCl 3 -urea [98] as precursors of the Fe 3 O 4 magnetic core of the nanocomposite. Both methods are characterized by the mild conditions used during the synthesis, with temperatures not exceeding 80 • C or 180 • C, respectively.…”

Section: Agricultural By-productsmentioning

confidence: 99%

“…Both methods are characterized by the mild conditions used during the synthesis, with temperatures not exceeding 80 • C or 180 • C, respectively. Once obtained, the solids are activated with an organic media and used for the extraction of fluoroquinolones and parabens from waters [97] or triazole fungicides from fruits [98]. The amount of sorbent required for the extraction was in the low milligram level (20-50 mg) with excellent sensitivity and precision.…”

Section: Agricultural By-productsmentioning

confidence: 99%

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

et al. 2019

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Green analytical chemistry principles aim to minimize the negative impact of analytical procedures in the environment, which can be considered both at close (to ensure the safety of the analysts) and global (to conserve our natural resources) levels. These principles suggest, among other guidelines, the reduction/minimization of the sample treatment and the use of renewable sources when possible. The first aspect is largely fulfilled by microextraction, which is considered to be among the greenest sample treatment techniques. The second consideration is attainable if natural products are used as raw materials for the preparation of new extraction phases. This strategy is in line with the change in our production system, which is being gradually moved from a linear model (take-make-dispose) to a circular one (including reusing and recycling as key terms). This article reviews the potential of natural products as sorbents in extraction and microextraction techniques from the synergic perspectives of two research groups working on the topic. The article covers the use of unmodified natural materials and the modified ones (although the latter has a less green character) to draw a general picture of the usefulness of the materials.Separations 2020, 7, 2 2 of 22 principle identifies one of the trends of current research in analytical sciences, it is difficult to be applied when complex samples containing the analytes at very low concentrations are processed. In such scenarios, the simplification of the sample treatment and the reduction of the sources applied (reagents, energy) can be a more practical objective, at least currently. Microextraction techniques fulfill the latter criteria [8], and they are considered among the greenest sample treatment techniques [9].Microextraction techniques have evolved in the last decade following some key trends. Among them, the development of new extraction phases can be highlighted, considering the context of this review article. In this evolution, the tenth (use of renewable resources) and eleventh (replace or remove toxic reagents) principles of GAC are especially relevant [7]. In the liquid microextraction context, environmentally friendly solvents [10,11] such as CyreneTM [12] and deep eutectic solvents [13] are clear examples of this progress.The paradigm of our production system, which up to now has been based on a linear "take-make-dispose" model, is progressively changed to a circular model [14] where reusing, repairing, refurbishing, and recycling appear as key terms. The use of surpluses of natural products as raw materials for the preparation of new sorbents is an interesting contribution of analytical chemistry for changing the production model. This review article, which combines the vision of two research groups working in the topic, tries to draw the general picture of the potential of natural products for the synthesis of new sorptive phases in solid phase extraction and solid phase microextraction. The article will cover strategies with different green characterist...

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“…GAs as adsorbents have shown their versatility as pollutant absorbers for the removal of dyes, formaldehyde, and other environmental toxins; on membranes for separating oil-in-water emulsion; and for efficient food toxin removal [ 22 , 23 ]. AC is often used as an adsorbent to remove dark-colored compounds [ 24 ], heavy metals [ 25 ], pesticides [ 26 ], and some organic acids [ 27 , 28 ], but few reports exist on the use of AC to enrich PMFs from CPW. In the adsorption process of AC, it is simpler and less time-consuming when compared to other methods.…”

Section: Introductionmentioning

confidence: 99%

Nano Porous Carbon Derived from Citrus Pomace for the Separation and Purification of PMFs in Citrus Processing Wastes

Chen

Qiu

et al. 2020

Nanomaterials

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The by-product of citrus juice processing is a huge source of bioactive compounds, especially polymethoxyflavones (PMFs) and fibers. In this study, a method for the separation and purification of PMFs from citrus pomace was established based on citrus nanoporous carbon (CNPC) enrichment. Different biomass porous carbons were synthesized, their adsorption/desorption characteristics were evaluated, and the CNPCs from the peel of Citrus tangerina Tanaka were found to be best for the enrichment of PMFs from the crude extracts of citrus pomace. Using this method, six PMF compounds including low-abundant PMFs in citrus fruits such as 5,6,7,4′-tetramethoxyflavone and 5-hydroxy-6,7,8,3′,4′-pentamethoxyflavone can be simultaneously obtained, and the purities of these compounds were all higher than 95%, with the highest purity of nobiletin reaching 99.96%. Therefore, CNPCs have a great potential for the separation and purification of PMFs in citrus processing wastes, potentially improving the added value of citrus wastes. We also provide a method reference for disposing of citrus pomace in the future.

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Carbon-Based Fe3O4 Nanocomposites Derived from Waste Pomelo Peels for Magnetic Solid-Phase Extraction of 11 Triazole Fungicides in Fruit Samples

Cited by 21 publications

References 28 publications

New phases for analytical scale extraction from plants: Current and future trends

New phases for analytical scale extraction from plants: Current and future trends

Returning to Nature for the Design of Sorptive Phases in Solid-Phase Microextraction

Nano Porous Carbon Derived from Citrus Pomace for the Separation and Purification of PMFs in Citrus Processing Wastes

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