A group of 5 laboratory-trained panelists subjectively assessed samples for appearance, stem and sheath browning, aroma, crunchiness, dehydration and overall quality on a 5-point scale.<br><br>Appearance was scored using a scale from 5 to 1, where 5 = excellent (fresh appearance, bright white color), 4 = good (slight dehydration on the cut surfaces, very mild signs of deterioration of the stem and absence of defects in the sheath, slight yellowing), 3 = fair (no ticeable dehydration on the cut surfaces and yellowing, appreciable signs of deterioration on the stem and mild on the sheath), 2 = poor (severe symptom of dehydration and perceptible deterioration on stem and on the sheath, appreciable browning of the stem), 1 = very poor (severe dehydration on stem and sheath, severe browning of the stem, possible microbial spoilage). <br><br>A score of 3 was considered as a limit of marketability while a score of 2 was considered as a limit of edibility. <br>Browning of the cut surfaces was scored separately on stem and sheath parts of sliced fennel using a scale from 1 to 5, where 1 = absence of browning, 3 = slight browning, 5 = complete browning. <br>The same 5 point scale structure was used to evaluate subjectively the other attributes such as aroma (1 = absent, 3 = moderate, 5 = full characteristic), crunchiness (1 = not crunchy, 3 = fairly crunchy, 5 = very crunchy), and dehydration (1 = fresh-like, 3 = slightly dehydrated, 5 = very dehydrated). <br>Finally, on the base of all these sensorial parameters, panelists attributed an overall evaluation using a scale from 1 to 5, where 1 = very poor, 3 = fair, and 5 = excellent.
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