Consumers dislike boar taint related off-flavours in pork chops regardless of a meal context

Meier-Dinkel, Lisa; Strack, Micha; Höinghaus, Kathrin; Mörlein, Daniel

doi:10.1016/j.meatsci.2016.07.014

Cited by 7 publications

(8 citation statements)

References 26 publications

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“…Decreased consumer acceptance was reported if deviant smell exceeds the latter threshold. 28 As derived from the ROC curves (Figure 6), the accuracy is highest when using the linear regression model using androstenone, skatole, and their interaction effect for prediction of deviant smell. Using only .…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 96%

“…Therefore, the consumer-oriented sensory threshold ≥3 was used. 28 Accordingly, 112/1031 (11%) truly tainted carcasses need to be detected. The optimum skatole sorting threshold that maximizes both sensitivity and specificity of a chemical detection method is located around 0.13 ppm (lower panel B of Figure 7).…”

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 99%

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Interaction of Skatole and Androstenone in the Olfactory Perception of Boar Taint

Mörlein

Trautmann

Gertheiss

et al. 2016

J. Agric. Food Chem.

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This study analyzed odor-odor interactions of two malodorous volatile substances, androstenone and skatole, that may accumulate in fat and meat of uncastrated male (boar) pigs. Therefore, fat samples were collected from 1000+ entire male pig carcasses for sensory evaluation and quantification of boar taint compounds using gas chromatography-mass spectrometry (GC-MS). Each sample was sniffed by 10 trained assessors, resulting in 11 000+ individual ratings, which were subjected to statistical analysis. Pearson correlations of chemical traits and sensory traits (panel average) were higher for skatole [r(1029) = 0.59; p < 0.001] than for androstenone [r(1029) = 0.44; p < 0.001]. Linear terms of androstenone and skatole as well as their interaction significantly (p < 0.05) contributed to perception of deviant smell (R(2) = 0.43). Standardized regression coefficients illustrate the higher importance of skatole (β = 0.68) than androstenone (β = 0.39). Interindividual differences in the responses of assessors to androstenone and skatole are confirmed. A new curved approach is suggested because it better accounts for the interaction of androstenone and skatole than the "safe box" approach. On the basis of these data, sorting strategies using instrumental measurements are discussed. An automated detection based on only skatole measurements is recommended because its performance is only slightly inferior to a sorting based on both androstenone and skatole. Sorting thresholds need to be calibrated against consumer acceptance though.

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Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 96%

Section: Journal Of Agricultural and Food Chemistrymentioning

confidence: 99%

Interaction of Skatole and Androstenone in the Olfactory Perception of Boar Taint

Mörlein

Trautmann

Gertheiss

et al. 2016

J. Agric. Food Chem.

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“…Besides, many consumers demand products characterised by high food safety and quality [16]. Therefore, animal health and consumer protection [17,18] as well as food quality such as avoidance of boar taint are further challenges [19,20]. For some of these challenges mentioned above, the use of specific carbohydrates, namely prebiotics, can be particularly interesting.…”

Section: Prebiotics In Monogastric Animals Especially In Pigsmentioning

confidence: 99%

“…Surgical castration of nearly all male suckling piglets is done up to now in most European countries [49]. However, this procedure is highly controversial discussed in public [19]. & Skatole is a product formed in the intestinal tract by microbial decomposition of the amino acid tryptophan [48].…”

Section: Effects Of Plant-based Fructans In Pig's Gutmentioning

confidence: 99%

Plant-based fructans for increased animal welfare: provision processes and remaining challenges

Zimmermann

Visscher

Kaltschmitt

2021

Biomass Conv. Bioref.

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Fructans are carbohydrates consisting of fructose monomers linked by β-2,1- and/or β-2,6-glycosidic bonds with linear or branched structure. These carbohydrates belong to the group of prebiotic dietary fibre with health-promoting potential for humans and mammals due to their indigestibility and selective stimulation of microorganisms in the gastrointestinal tract. This makes fructans interesting mainly for healthy food as well as animal feed applications. As a consequence of a growing public awareness for animal welfare, dietary fibre and thus fructans move into the focus as a fibre-rich feeding improving not only animals’ health but also their well-being. Against this background, this paper summarises the known effects of fructans focusing on pigs and highlights the state of the art in fructan production processes from plant material as well as selected current research lines. Additionally, an attempt is made to assess the potential of European fructan production for an application as animal feed. Based on this, challenges in the field of fructan production are addressed and alternative substrates for fructans are discussed and pointed out.

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“…Lately, 2-aminoacetophenone was also suggested to contribute to boar taint [ 21 ]. The detection of boar taint is important because boar taint can negatively affect consumers’ acceptability [ 12 , 22 , 23 ]. To avoid boar taint, surgical castration without anaesthesia/analgesia is widely used.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of on/at Line Methods to Determine Boar Taint and Boar Taint Compounds: An Overview

Font-i-Furnols

Martín-Bernal

Aluwé

et al. 2020

Animals

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Classification of carcasses at the slaughter line allows an optimisation of its processing and differentiated payment to producers. Boar taint is a quality characteristic that is evaluated in some slaughter plants. This odour and flavour is mostly present in entire males and perceived generally by sensitive consumers as unpleasant. In the present work, the methodologies currently used in slaughter plants for boar taint classification (colorimetric method and sensory quality control-human nose) and the methodologies that have the potential to be implemented on/at the slaughter line (mass spectrometry, Raman and biosensors) have been summarized. Their main characteristics are presented and an analysis of strengths, weaknesses, opportunities and threats (SWOT) has been carried out. From this, we can conclude that, apart from human nose, the technology that arises as very promising and available on the market, and that will probably become a substitute for the colorimetric method, is the tandem between the laser diode thermal desorption ion source and the mass spectrometry (LDTD-MS/MS) with automation of the sampling and sample pre-treatment, because it is able to work at the slaughter line, is fast and robust, and measures both androstenone and skatole.

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Consumers dislike boar taint related off-flavours in pork chops regardless of a meal context

Cited by 7 publications

References 26 publications

Interaction of Skatole and Androstenone in the Olfactory Perception of Boar Taint

Interaction of Skatole and Androstenone in the Olfactory Perception of Boar Taint

Plant-based fructans for increased animal welfare: provision processes and remaining challenges

Feasibility of on/at Line Methods to Determine Boar Taint and Boar Taint Compounds: An Overview

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