Molecularly imprinted solid phase extraction coupled to high performance liquid chromatography for determination of aflatoxin M<sub>1</sub> and B<sub>1</sub> in foods and feeds

Wei, Shoulian; Liu, Yong; Zhou, Yan; Liu, Ling

doi:10.1039/c4ra16784h

Cited by 43 publications

(20 citation statements)

References 33 publications

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“…Wei et al [10] obtained similar results when they characterized their imprinted polymer using FTIR Figure 7 compares rebinding of AFB1 to the MIP and to the NIP. At each studied concentration level, more AFB1 was bound to the MIP than to the NIP.…”

Section: Confirmation Of the Formation Of Afb1-mip Powder And Removalsupporting

confidence: 50%

“…Wei et al [10] investigated the adsorption capacity of their imprinted nanospheres, which they had prepared by mini-emulsion polymerization. In their study, the maximum adsorption of MIP and NIP for AFB1, Qmax, was estimated to be 8.2 mg/g and 4.9 mg/g, respectively.…”

Section: Rebinding Of the Mipmentioning

confidence: 99%

“…[10] [10] Where v 5 is the volume of AFB1 in microliters, v 6 is the volume of extract injected, m i is the mass of the aflatoxin in the injection volume corresponding to the measured peak (in ng), and m t is the mass of the test sample in the second filtrate taken after MIP extraction (in grams).…”

Section: Pre-concentration Of Afb1 From the Tsabana Extracts Using Thmentioning

confidence: 99%

“…Contemporary analytical methods have the sensitivity required for detection and quantification of this contaminant. The most commonly employed method for detection of aflatoxins is high performance liquid chromatography, coupled with fluorescence detection (HPLC-FLD) [10]. Analytical techniques like gas chromatography (GC) or gas chromatography tandem mass spectrometry (GC-MS) have also traditionally been employed for aflatoxin analysis.…”

mentioning

confidence: 99%

“…Bayram et al [24] have also developed monolithic columns for the extraction of aflatoxins that combine cryogels with the superior features of molecularly imprinted polymers. Additionally, by employing mini-emulsion polymerization, Wei et al [10] have prepared molecularly imprinted nanospherical solid phase extraction sorbents.…”

mentioning

confidence: 99%

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Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Semong¹,

Batlokwa²

2017

Molecular Imprinting

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This paper presents the synthesis, optimization and application of a molecularly imprinted polymer (MIP) sorbent for the selective extraction and pre-concentration of the potent toxin, aflatoxin B1 (AFB1), from the child weaning food, Tsabana (manufactured in Serowe, Botswana). As a food safety regulatory measure, Tsabana must be cleared of hazardous aflatoxins, especially AFB1, before consumption. This is because AFB1 is the most common and potent of the aflatoxins commonly found in cereals. Accurate analysis of AFB1 is challenging because it exists in very low concentrations in complex, ‘dirty’ matrices such as food, making it difficult to detect using analytical instruments, even if these analytical techniques have sensitivities at the femto level. The MIP extraction sorbent synthesized in this paper deals with these challenges by selectively pre-concentrating AFB1 from real Tsabana samples, successfully achieving a pre-concentration factor of 5 and therefore significantly increasing ABF1 signal intensity for easier detection. Further advantages of this system include the short time (25.0 minutes) and reasonable optimal MIP dose (20.0 mg) needed for maximum AFB1 extraction by the sorbent. Scanning electron microscopy revealed that the prepared AFB1 powder particles have spherical geometries and reasonably small sizes (800 nm), two advantageous physical characteristics that are associated with excellent sorbent materials.

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Section: Confirmation Of the Formation Of Afb1-mip Powder And Removalsupporting

confidence: 50%

Section: Rebinding Of the Mipmentioning

confidence: 99%

Section: Pre-concentration Of Afb1 From the Tsabana Extracts Using Thmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Semong¹,

Batlokwa²

2017

Molecular Imprinting

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Review of Sample Treatments and the State‐of‐the‐art of Analytical Techniques for Mycotoxins in Food

Arroyo‐Manzanares

Huertas-Pérez

Garcı́a-Campaña

et al. 2017

Analysis of Food Toxins and Toxicants

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Smart Materials for Solid‐Phase Extraction Applications

Carrasco-Correa

Vergara-Barberán

Herrero‐Martínez

2019

Handbook of Smart Materials in Analytical Chemistry

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Molecularly imprinted solid phase extraction coupled to high performance liquid chromatography for determination of aflatoxin M₁ and B₁ in foods and feeds

Abstract: Molecularly imprinted solid phase extraction for determination of aflatoxin M1 and B1 in foods and feeds.

Cited by 43 publications

References 33 publications

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Review of Sample Treatments and the State‐of‐the‐art of Analytical Techniques for Mycotoxins in Food

Smart Materials for Solid‐Phase Extraction Applications

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Molecularly imprinted solid phase extraction coupled to high performance liquid chromatography for determination of aflatoxin M1 and B1 in foods and feeds

Abstract: Molecularly imprinted solid phase extraction for determination of aflatoxin M1 and B1 in foods and feeds.

Cited by 43 publications

References 33 publications

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Development of an aflatoxin B1 specific molecularly imprinted solid phase extraction sorbent for the selective pre-concentration of toxic aflatoxin B1 from child weaning food, Tsabana

Review of Sample Treatments and the State‐of‐the‐art of Analytical Techniques for Mycotoxins in Food

Smart Materials for Solid‐Phase Extraction Applications

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Product

Resources

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Molecularly imprinted solid phase extraction coupled to high performance liquid chromatography for determination of aflatoxin M₁ and B₁ in foods and feeds