Number of consumers and days of display necessary for the assessment of meat colour acceptability

Abstract

Visual assessment is regarded as the gold standard to evaluate meat colour shelf-life, but it is costly and time consuming. To address this issue, this paper aims to evaluate the number of consumers and days of display that are necessaries in order to assess the colour shelf-life of meat, presented with different methods, all using images. Photographs of thirty-six lamb steaks were taken just after cutting (day 0) and on each of the following days until the 14th day of display under standardized conditions. Images were presented in three different manners: 1) with days of display and animals in random order (Random); 2) days of display in sequential and animals in random order (Sequential); and, 3) days of display and animals in sequential order (Animal); they were presented to 211 consumers who evaluated visual acceptability on a 9-point scale. At day zero, visual acceptability scores were the highest in Animal, followed by Sequential, and then by the Random (P < 0.05) method. Scores decreased over time for all methods tested (P < 0.05). The Random method presented the highest standard

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Computer vision as the golden tool: mathematical models for evaluating color and storage time of hamburgers with goji berry natural additive

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Acceptability by sensory and visual analyses of meat from Nellore heifers fed with natural additives and finished in feedlots

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