1 Department of Training and Research in Chemical and Agro-Food Engineering, Unit of Agronomic Sciences and Processing Techniques, Félix Houphouet Boigny National Polytechnic Institute (INPHB), Ivory Coast.
2 Laboratory of Industrial Processes, Synthesis, Environment, and New Energies, Félix Houphouet Boigny National Polytechnic Institute (INPHB), Ivory Coast.
3 Laboratory of Medical Biochemistry, Unit of Training and Medical Ressearch, Alassane Ouattara University (UAO), Ivory Coast.
World Journal of Advanced Research and Reviews, 2025, 26(01), 4059-4066
Article DOI: 10.30574/wjarr.2025.26.1.1487
Received on 18 March 2025; revised on 26 April 2025; accepted on 28 April 2025
This study aims to analyze the sensory variability of black pepper (Piper nigrum l) produced in Ivory Coast according to its geographical origin. A trained sensory panel evaluated samples from seven locations using descriptive analysis. The analysis was performed by XLSTAT version 21 using the Friedman test at p<0.05 followed by the Conover test and hierarchical ascending classification (HAC). The results of the Friedman test revealed highly significant differences for some descriptors, notably Black (p= 3.53e-20), Punget (p=6.38e-11), Bitter (p=1.52e-15) and Salty (2.54e-08). The post-hoc test showed that the localities of Guiberoua and Niablé presented very distinct sensory profiles. The analysis by hierarchical ascending classification made it possible to group the localities into three clusters: (1) Guiberoua and Niablé; (2) Assouba and Lopou; (3) Azaguié, Maféré and Yakassémé with homogeneous sensory characteristics. These results confirm that pedoclimatic conditions and cultural practices significantly influence the organoleptic quality of pepper. They thus provide a scientific basis for valorization by geographical origin, with a view to strategies such as the protected geographical indication (PGI).
Sensory Profile; Friedman Test; CAH; Black Pepper; Geographic Variability
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Ramzie Kelly Dago, Djédjro Clément Akmel, Antoinette Yoboue and Emmanuel Assidjo. Study of the geographical variability of peppers (Piper nigrum) products in Ivory Coast. World Journal of Advanced Research and Reviews, 2025, 26(01), 4059-4066. Article DOI: https://doi.org/10.30574/wjarr.2025.26.1.1487.
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