Relationship between the COI test and other sensory profiles by statistical procedures

Authors

  • R. Aparicio Instituto de la Grasa (CSIC)
  • M. V. Alonso Instituto de la Grasa (CSIC), Sevilla
  • M. T. Morales Instituto de la Grasa (CSIC), Sevilla
  • J. J. Calvente University of Seville, temporally at Instituto de la Grasa

DOI:

https://doi.org/10.3989/gya.1994.v45.i1-2.966

Keywords:

Chemometrics, COI test, Fuzzy logic, Sensory Analysis, Sensory wheel, Virgin olive oil

Abstract


Relationships between 139 sensory attributes evaluated on 32 samples of virgin olive oil have been analysed by a statistical sensory wheel that guarantees the objectiveness and prediction of its conclusions concerning the best clusters of attributes: green, bitter-pungent, ripe fruit, fruity, sweet fruit, undesirable attributes and two miscellanies. The procedure allows the sensory notes evaluated for potential consumers of this edible oil from the point of view of its habitual consumers to be understood with special reference to The European Communities Regulation n-2568/91. Five different panels: Spanish, Greek, Italian, Dutch and British, have been used to evaluate the samples. Analysis of the relationships between stimuli perceived by aroma, flavour, smell, mouthfeel and taste together with Linear Sensory Profiles based on Fuzzy Logic are provided. A 3-dimensional plot indicates the usefulness of the proposed procedure in the authentication of different varieties of virgin olive oil. An analysis of the volatile compounds responsible for most of the attributes gives weight to the conclusions. Directions which promise to improve the E.G. Regulation on the sensory quality of olive oil are also given.

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Published

1994-04-30

How to Cite

1.
Aparicio R, Alonso MV, Morales MT, Calvente JJ. Relationship between the COI test and other sensory profiles by statistical procedures. Grasas aceites [Internet]. 1994Apr.30 [cited 2024May23];45(1-2):26-41. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/966

Issue

Section

Monography

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