Thin Layer Chromatography Reflectometric Determination of Benzoic and Sorbic Acids in Fruit Beverages

Mandrou, B.; Bressolle, Françoise

doi:10.1093/jaoac/63.3.675

Cited by 7 publications

(6 citation statements)

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“…The relative recoveries of the analytes are given in Table and varied between 90 and 113%, which indicated that the real matrixes in our present context had little effect on HS-LPME. In comparison with the AOAC official methods , and those previously published, the protocol demonstrated a satisfactory reliability, accuracy and repeatability for the determination of BA and SA in soft drinks with complex matrixes. The chromatogram obtained by GC−MS of seawater sample spiked with the target compounds at the concentration level of 50.0 μg L −1 of each analyte after the developed method is shown in Figure .…”

Section: Resultsmentioning

confidence: 77%

Study on the Performance of the Headspace Liquid-Phase Microextraction, Gas Chromatography−Mass Spectrometry in the Determination of Sorbic and Benzoic Acids in Soft Drinks and Environmental Water Samples

Farahani

Dinarvand²,

Norouzi³

2009

J. Agric. Food Chem.

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A simple, efficient and virtually solventless headspace liquid-phase microextraction (HS-LPME) technique, combined with gas chromatography-mass spectrometry (GC-MS), was developed for the analysis of sorbic acid (SA) and benzoic acid (BA) in soft drinks and environmental water samples. A microdrop of organic solvent was suspended from the tip of a microsyringe needle over the headspace of the stirred sample solution, containing the analytes for a desired time. The microdrop was then retracted into the microsyringe and directly injected into the GC-MS, without any further pretreatment. Initially, microextraction efficiency factors were optimized, and the optimum experimental conditions found were as follows: 2.5 microL toluene microdrop exposed for 20 min over the headspace of a 6.5 mL aqueous sample (45 degrees C), containing 3 M of NaCl with pH of 1.5 and stirred at 1000 rpm. Under the optimized extraction conditions, preconcentration factors of 154 and 198, limits of detection of 0.3 and 0.1 microg L(-1) (S/N=3) with dynamic linear ranges of 1-500 and 0.5-500 microg L(-1), were obtained for SA and BA respectively. A good repeatability (RSD<10.3%, n=8) and satisfactory linearity (r(2) >or= 0.99) of results were achieved. The accuracy of the method was tested by the relative recovery experiments on spiked samples, with results ranging from 90 to 113%. The method proved to be rapid and cost-effective and is a green procedure for screening purposes.

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Section: Resultsmentioning

confidence: 77%

Study on the Performance of the Headspace Liquid-Phase Microextraction, Gas Chromatography−Mass Spectrometry in the Determination of Sorbic and Benzoic Acids in Soft Drinks and Environmental Water Samples

Farahani

Dinarvand²,

Norouzi³

2009

J. Agric. Food Chem.

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“…These parameters are based on sensory properties such as flavor, color, aroma, taste and texture. The quality parameters that are based on quantitative properties such as percentage of sugar, protein, peroxides, free fatty acids, enzymes can be determined via several analytical techniques such as Thin layer chromatography (TLC) , high‐performance liquid chromatography (HPLC) , micellar electrokinetic chromatography , gas chromatography (GC) , and electrochemical techniques . The application of electrochemical techniques in food analysis is promising .…”

Section: Introductionmentioning

confidence: 74%

“…For this reason, the development of appropriate and inexpensive methods to determine BA is of great importance for food safety . To date, thin layer chromatography (TLC) , high‐performance liquid chromatography (HPLC) , micellar electro kinetic chromatography (MEKC) and gas chromatography (GC) have been developed for BA determination. In this study, an electrochemical measurement approach was developed to determine BA in food.…”

Section: Introductionmentioning

confidence: 99%

Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

Kazıcı

Yayla

Aktaş³

et al. 2019

Electroanalysis

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In this study a PdSn based sensor was developed for the determination of benzoic acid (BA) in foods. A carbon (Vulcan XC‐72R) supported PdSn catalyst was prepared via polyol method and its surface electronic and chemical properties were investigated by advanced surface analytical techniques such as scanning electron microscopy (SEM), X‐ray diffraction spectroscopy (XRD), X‐ray Photoelectron Spectroscopy (XPS), temperature‐programmed reduction with H2 (TPR‐H2) and transmission electron microscopy (TEM). Electrochemical measurements were performed by employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques on PdSn/GCE/Vulcan XC‐72R electrode. The developed sensor showed a wide linear range up to 10 mM with a 0.77 μM low limit of detection (LOD) as well as high stability. Further experiments were performed on food samples containing BA to achieve real sample measurements. For real sample measurements, PdSn/GCE/Vulcan XC‐72R electrode was used for the determination of BA in different kinds of samples such as mayonnaise, ketchup and carbonated beverages.

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“…In the United States, sodium benzoate is classified as “generally recognized as safe.” It is permitted to use in food materials up to a maximum level of 0.1% . Although, it has been neglected as a catalyst for a long time and less number of reactions carried by using it as catalyst . Therefore, the study of sodium benzoate as environmentally benign catalyst appears to be very reasonable.…”

Section: Introductionmentioning

confidence: 99%

One‐pot Synthesis of 3‐phenyl‐4‐pyrazolylmethylene‐isoxazol‐(5H)‐ones Catalyzed by Sodium Benzoate in Aqueous Media under the Influence of Ultrasound Waves: A Green Chemistry Approach

Konkala

Dubey

2017

Journal of Heterocyclic Chem

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A series of 4-pyrazolylmethylene-3-phenylisoxazol-5(4H)-ones have been prepared from Knoevenagel condensation of pyrazole-4-carbaxaldehyde with isoxazolone precursors or via one-pot three-component cyclocondensation of pyrazole-4-carbaxaldehyde with β-ketoesters and hydroxylamine hydrochloride in the presence of sodium benzoate in water under the influence of ultrasonic waves. The merits of this method are efficient, clean, green, easy work-up, high yields, and shorter reaction time, and the catalyst could be recycled easily without affecting the catalytic activity.

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Thin Layer Chromatography Reflectometric Determination of Benzoic and Sorbic Acids in Fruit Beverages

Cited by 7 publications

References 0 publications

Study on the Performance of the Headspace Liquid-Phase Microextraction, Gas Chromatography−Mass Spectrometry in the Determination of Sorbic and Benzoic Acids in Soft Drinks and Environmental Water Samples

Study on the Performance of the Headspace Liquid-Phase Microextraction, Gas Chromatography−Mass Spectrometry in the Determination of Sorbic and Benzoic Acids in Soft Drinks and Environmental Water Samples

Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

One‐pot Synthesis of 3‐phenyl‐4‐pyrazolylmethylene‐isoxazol‐(5H)‐ones Catalyzed by Sodium Benzoate in Aqueous Media under the Influence of Ultrasound Waves: A Green Chemistry Approach

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