Samples were completely rotated and 2 repetitions were completed. The evaluation proceeded in 3 sessions of 2 h each:
Session 1 – Training: Samples were presented to the panellists in pairs. A list of 42 attributes corresponding to the hot beverage product category was used for the assessment. In this step the panellists rated the pair of samples perceived intensities on 150 mm closed-end unstructured scales. This task informed about whether an attribute was perceived by the panellists, and allowed assessing the degree of consensus in the ratings. If discrepancies in attributes or ratings were detected, an open discussion was prompted, in order to arrive to a consensus. Attributes selected for the data collection
step were the ones utilized by at least half of the panel (23 attributes in total).
Sessions 2 & 3 – Sensory evaluation & repetition: Samples were presented to the panellists in a sequential monadic way following a Latin square design generated by Fizz (FIZZ 2.40B, Biosystems, France). They entered their intensity ratings by logging in a FIZZ QDA session built for 7 products and including the 23 selected attributes, using closed-end unstructured 150 mm scales displayed on computer screens. Session 3: was a repetition of Session 2 in order to check the performance of the panel as well as the reproducibility and attribute interactions as used by the panellists.
Samples were completely rotated and 2 repetitions were completed. The evaluation proceeded in 3 sessions of 2 h each: Session 1 – Training: Samples were presented to the panellists in pairs. A list of 42 attributes corresponding to the hot beverage product category was used for the assessment. In this step the panellists rated the pair of samples perceived intensities on 150 mm closed-end unstructured scales. This task informed about whether an attribute was perceived by the panellists, and allowed assessing the degree of consensus in the ratings. If discrepancies in attributes or ratings were detected, an open discussion was prompted, in order to arrive to a consensus. Attributes selected for the data collectionstep were the ones utilized by at least half of the panel (23 attributes in total). Sessions 2 & 3 – Sensory evaluation & repetition: Samples were presented to the panellists in a sequential monadic way following a Latin square design generated by Fizz (FIZZ 2.40B, Biosystems, France). They entered their intensity ratings by logging in a FIZZ QDA session built for 7 products and including the 23 selected attributes, using closed-end unstructured 150 mm scales displayed on computer screens. Session 3: was a repetition of Session 2 in order to check the performance of the panel as well as the reproducibility and attribute interactions as used by the panellists.
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