The discrimination of raw and UHT milk samples contaminated with penicillin G and ampicillin using image processing neural network and biocrystallization methods

Ünlütürk, Sevcan; Pelvan, Merve; Unluturk, Mehmet S.

doi:10.1016/j.jfca.2013.06.007

Cited by 14 publications

(6 citation statements)

References 14 publications

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“…Image forming methods have been successfully applied in the differentiation and quality evaluation of cereal, fruit, vegetable, wine, or milk samples from different varieties (Busscher et al 2010), production or fertilization systems (Athmann 2011;Busscher et al 2010;Fritz et al 2011Fritz et al , 2014Fritz et al , 2017Kahl et al 2015;Mäder et al 1993Mäder et al , 2007Szulc et al 2010;Weibel et al 2000), or processing steps (Busscher et al 2010;Kahl et al 2009Kahl et al , 2014Seidel et al 2015;Unluturk et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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An update on image forming methods: structure analysis and Gestalt evaluation of images from rocket lettuce with shading, N supply, organic or mineral fertilization, and biodynamic preparations

Athmann

Bornhütter²,

Busscher

et al. 2021

Org. Agr.

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In the image forming methods, copper chloride crystallization (CCCryst), capillary dynamolysis (CapDyn), and circular chromatography (CChrom), characteristic patterns emerge in response to different food extracts. These patterns reflect the resistance to decomposition as an aspect of resilience and are therefore used in product quality assessment complementary to chemical analyses. In the presented study, rocket lettuce from a field trial with different radiation intensities, nitrogen supply, biodynamic, organic and mineral fertilization, and with or without horn silica application was investigated with all three image forming methods. The main objective was to compare two different evaluation approaches, differing in the type of image forming method leading the evaluation, the amount of factors analyzed, and the deployed perceptual strategy: Firstly, image evaluation of samples from all four experimental factors simultaneously by two individual evaluators was based mainly on analyzing structural features in CapDyn (analytical perception). Secondly, a panel of eight evaluators applied a Gestalt evaluation imbued with a kinesthetic engagement of CCCryst patterns from either fertilization treatments or horn silica treatments, followed by a confirmatory analysis of individual structural features. With the analytical approach, samples from different radiation intensities and N supply levels were identified correctly in two out of two sample sets with groups of five samples per treatment each (Cohen’s kappa, p = 0.0079), and the two organic fertilizer treatments were differentiated from the mineral fertilizer treatment in eight out of eight sample sets with groups of three manure and two minerally fertilized samples each (Cohen’s kappa, p = 0.0048). With the panel approach based on Gestalt evaluation, biodynamic fertilization was differentiated from organic and mineral fertilization in two out of two exams with 16 comparisons each (Friedman test, p < 0.001), and samples with horn silica application were successfully identified in two out of two exams with 32 comparisons each (Friedman test, p < 0.001). Further research will show which properties of the food decisive for resistance to decomposition are reflected by analytical and Gestalt criteria, respectively, in CCCryst and CapDyn images.

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Section: Introductionmentioning

confidence: 99%

“…CCCryst images are analyzed either computer-based (Andersen et al 1999;Doesburg and Nierop 2013;Unluturk et al 2013) or visually (Huber et al 2010;Fritz et al 2011;Doesburg et al 2015). For images of the two chromatographic methods, only visual evaluation procedures have been developed.…”

Section: Introductionmentioning

confidence: 99%

An update on image forming methods: structure analysis and Gestalt evaluation of images from rocket lettuce with shading, N supply, organic or mineral fertilization, and biodynamic preparations

Athmann

Bornhütter²,

Busscher

et al. 2021

Org. Agr.

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“…As a veterinary drug, ampicillin sodium is widely used to increase the rate of weight gain or to improve the feed efficiency in cattle breeding. In recent years, the excessive or improper usage of ampicillin sodium in some cases may lead to the presence of residues in edible animal tissues and body fluids, which is potentially toxic and dangerous for human health [4] . At present, the reasonable and correct use of BLAs for animals feeding has been emphasized in China, Europe and some other countries.…”

Section: Introductionmentioning

confidence: 99%

A novel surface molecularly imprinted polymer as the solid-phase extraction adsorbent for the selective determination of ampicillin sodium in milk and blood samples

Luo

et al. 2016

Journal of Pharmaceutical Analysis

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Surface molecularly imprinted polymers (SMIPs) for selective adsorption of ampicillin sodium were synthesized using surface molecular imprinting technique with silica gel as a support. The physical and morphological characteristics of the polymers were investigated by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), elemental analysis and nitrogen adsorption–desorption test. The obtained results showed that the SMIPs displayed great adsorption capacity (13.5 μg/mg), high recognition ability (the imprinted factor is 3.2) and good binding kinetics for ampicillin sodium. Finally, as solid phase extraction adsorbents, the SMIPs coupled with HPLC method were validated and applied for the enrichment, purification and determination of ampicillin sodium in real milk and blood samples. The averages of spiked accuracy ranged from 92.1% to 107.6%. The relative standard deviations of intra- and inter-day precisions were less than 4.6%. This study provides a new and promising method for enriching, extracting and determining ampicillin sodium in complex biological samples.

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“…Many studies have demonstrated the potential of the crystallization method as an indicator for systemic effects of processing, feeding regime, and production systems across a broad range of agricultural products [3,6,[13][14][15][16][17][18][19][20][21][22][23][24]. Kahl et al [3,25] discussed validation strategies for systemic approaches to organic food quality determination, including the method of copper chloride crystallization with additives.…”

Section: Introductionmentioning

confidence: 99%

Analytical perception and kinesthetic engagement in evaluation of copper chloride crystallization patterns of wheat, grape juice and rocket samples from conventional, organic and biodynamic cultivation

Fritz

Athmann

Bornhütter³

et al. 2022

Chem. Biol. Technol. Agric.

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Background When a dihydrate cupric chloride solution is crystallized in a petri dish in the presence of extracts of food products, dendritic crystal patterns emerge. The degree of growth, ripening and decomposition of the product is reflected in these patterns as salient unities (gestalts) of phenomenological features. In the present study we evaluated wheat, grape, and rocket (arugula) samples grown under different farming systems, fertilization treatments or horn silica application. The hypothesis of the present study was: samples are more precisely differentiated with a kinesthetic engagement in the perception of the gestalt decomposition than with ranking solely based on analytical criteria. Results In six out of seven panel tests with three different agricultural products grown with different methods, the following rankings for accelerated decomposability were derived: For wheat: biodynamic < organic < conventional (mineral fertilization and manure) < mineral (mineral fertilization only) For grapes: biodynamic < organic < conventional (mineral fertilization and compost) For rocket (arugula): biodynamic < organic < mineral For rocket (arugula): with horn silica < without horn silica application. Analytical assessment was compared with kinesthetic priming of the evaluation panel. In six out of seven tests kinesthetic assessments (i) yielded more highly significant differences in ranking between the cultivation methods; (ii) clearly improved matching of the samples in a confusion matrix to the ranking of the cultivation methods; and (iii) generated lower RMSE values. Conclusions Kinesthetic engagement in gestalt evaluation proved superior to an evaluation based on analytical perception. Highly significant differences between biodynamic and organic variants and also between treatments with and without horn silica application were found in six out of seven tests. In five of the six tests the only difference between organic and biodynamic variants was the application of the biodynamic preparations. The results indicate increased resistance to deterioration of the biodynamic variants, in terms of lower degradation in the crystallization images. This prompts additional research to establish whether the crystallization method can serve as a universal test to monitor the stress resistance of plants. Graphical Abstract

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The discrimination of raw and UHT milk samples contaminated with penicillin G and ampicillin using image processing neural network and biocrystallization methods

Cited by 14 publications

References 14 publications

An update on image forming methods: structure analysis and Gestalt evaluation of images from rocket lettuce with shading, N supply, organic or mineral fertilization, and biodynamic preparations

An update on image forming methods: structure analysis and Gestalt evaluation of images from rocket lettuce with shading, N supply, organic or mineral fertilization, and biodynamic preparations

A novel surface molecularly imprinted polymer as the solid-phase extraction adsorbent for the selective determination of ampicillin sodium in milk and blood samples

Analytical perception and kinesthetic engagement in evaluation of copper chloride crystallization patterns of wheat, grape juice and rocket samples from conventional, organic and biodynamic cultivation

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