Determination of formaldehyde in food and feed by an in-house validated HPLC method

Wahed, P.; Razzaq, Md.A.; Dharmapuri, Sridhar; López-Corrales, M.

doi:10.1016/j.foodchem.2016.01.136

Cited by 165 publications

(103 citation statements)

References 18 publications

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“…So far, a large number of techniques have been reported for the determination of formaldehyde, including gas chromatography (GC) [4] and high-performance liquid chromatography (HPLC) [5]. These analytical laboratory methods usually need the large and expensive instruments, which are not suitable for the portable in-field detection of formaldehyde.…”

Section: Introductionmentioning

confidence: 99%

Rapid, Wide-Range, and Low-Cost Determination of Formaldehyde Based on Porous Silica Gel Plate by Digital Image Colorimetry

Cao

Liu

Zhao

et al. 2019

The 6th International Electronic Conference on Sensors and Applications

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A porous silica gel plate impregnated with a colorimetric reagent, 4-amino-3-penten-2one (Fluoral-P) has been fabricated for the first time to determinate formaldehyde. The reaction of formaldehyde and Fluoral-P produced a yellow product 3,5-diacetyl-1,4-dihydrolutidine (DDL), which was further photographed by a smartphone. A good linear relationship has been found between the intensity of blue component from the digital image and formaldehyde concentration in the range of 0-50 mg L −1 with low detection limit of 2.2 ± 0.1 mg L −1 . A good precision in the range of 0.59-7.75%RSD and an accuracy with the relative error of +3.7% from control samples are also obtained. These results demonstrate that our developed low-cost sensor, together with digital image colorimetry, has potential for sensitively and quickly measuring formaldehyde.

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Section: Introductionmentioning

confidence: 99%

Rapid, Wide-Range, and Low-Cost Determination of Formaldehyde Based on Porous Silica Gel Plate by Digital Image Colorimetry

Cao

Liu

Zhao

et al. 2019

The 6th International Electronic Conference on Sensors and Applications

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“…[1] FA contents in some meat products could be even as high as 125 mg/kg wet weight. [2] Many methods have been applied to quantify the amount of FA in different food products including coffees, [3] beers, [4] bovine milk, [5] fishes [6] , and fruit juice. [7] Weng used heated polydimethylsiloxane microfluidic chip to establish a rapid and simple method for detecting the FA with very small amount of non-smoked food samples (Shiitake mushroom, Pork, Pear, seafood and crustaceans, Ginseng).…”

Section: Introductionmentioning

confidence: 99%

“…[8] Wahed et al applied a sensitive high-performance liquid chromatography (HPLC) method to determine FA in mango, fish, and milk. [6] Bianchi F. et al determined the FA, which is known to form postmortem from the enzymatic reduction of trimethylamine-N-oxide, in 12 sea fish species under different circumstances by SPME extraction and GC-MS analysis. [9] Enzymatic method for fish muscle tissues of frozen hake and cod, as well as of freshly killed carp [10] and electrophoretic method for wines and water [11] have also been utilized in FA assay.…”

Section: Introductionmentioning

confidence: 99%

Validation of UPLC method on the determination of formaldehyde in smoked meat products

Wang

Liu

et al. 2018

International Journal of Food Properties

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The study was carried out to establish a formaldehyde (FA) detection method in smoked meat products with ultra-performance liquid chromatography (UPLC) method. The high-performance liquid chromatography method was developed by using steam distillation as extraction method and then derived by2,4-dinitrophenylhydrazine (DNPH). The final optimum conditions of derivatization for UPLC method were determined as follows: DNPH dosage of 0.3 mL, derivatization temperature of 60°C, derivatization time of 60 min, and twice extraction. This method was further applied to determine the content of FA in the smoked meat products from five companies. The internal FA in the smoked meat products ranged from 25.55 mg/kg meat to 49.20 mg/kg meat, and the surface FA was 34.04 mg/kg meat to 165.25 mg/kg meat. Thus, this study establishes a simple, fast, and reliable method for the analysis of FA in smoked meat products. ARTICLE HISTORY

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“…7,12,13 Formaldehyde is commonly determined by spectrophotometry, 14 fluorimetry, 15 chemiluminescence 16 or separation techniques. 17 Procedures based on fluorimetric or spectrophotometric detection using acetylacetone (2,4-pentadione) for chemical derivatization have been commonly used. 18 The acetylacetone method was developed by Nash 19 and based on Hantzsch reaction.…”

Section: Introductionmentioning

confidence: 99%

A Multicommuted Flow System for Spectrophotometric Determination of Formaldehyde in Mushroom

Rocha¹,

Richter²,

Muñoz³

et al. 2018

J. Braz. Chem. Soc.

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Formaldehyde is a carcinogenic compound that was employed as fungicide in the past. Despite its disuse, some foods such as mushrooms naturally produce formaldehyde, showing the importance of its determination. In this work, a mechanized flow system based on solenoid valves is proposed for spectrophotometric formaldehyde determination in mushrooms. The analyte was extracted from fresh and dried mushrooms samples by steam distillation with deionized water in the presence of phosphoric acid. The determination was based on the reaction between formaldehyde and acetylacetone in presence of ammonium acetate (Hantzsch reaction), leading to the formation of 3,5-diacetyl-1,4-dihydrolutidine (DDL, λ max = 412 nm). Linear response from 0.2 to 7.0 mg L -1 was achieved, with detection limit estimated at 0.02 mg L -1 (99.7% confidence level). Coefficient of variation and sample throughput were 1.1% (n = 15) and 17 h -1 , respectively. Per determination, 11 mg of acetylacetone and 30 mg of ammonium acetate were consumed, generating 4.2 mL of waste. The procedure was applied to formaldehyde determination in fresh and dried shiitake, and fresh shimeji, and the results agreed with those attained by reference method at the 95% confidence level.

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Determination of formaldehyde in food and feed by an in-house validated HPLC method

Cited by 165 publications

References 18 publications

Rapid, Wide-Range, and Low-Cost Determination of Formaldehyde Based on Porous Silica Gel Plate by Digital Image Colorimetry

Rapid, Wide-Range, and Low-Cost Determination of Formaldehyde Based on Porous Silica Gel Plate by Digital Image Colorimetry

Validation of UPLC method on the determination of formaldehyde in smoked meat products

A Multicommuted Flow System for Spectrophotometric Determination of Formaldehyde in Mushroom

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