Ethnomelissological, melissopalynological and physicochemical characterization of honeys from the El Tarf region, Northeastern Algeria

Amira  Bergal; Warda  Boumaraf; Loubna Nefla; Chahrazed  Bouksiba; Djamel   Benouareth

Amira Bergal Laboratory of Environmental Sciences and Agroecology, Department of Biology, Faculty of Natural and Life Sciences, Chadli Bendjedid University, El-Tarf, P.O. Box 73, 36000, Algeria. Laboratory of Molecular and Cellular Biology, Department of Biology, Faculty of Natural and Life Sciences and Earth and Universe Sciences, University of 8 May, Guelma, Algeria. https://orcid.org/0009-0007-2039-9169
Warda Boumaraf Laboratory of Environmental Sciences and Agroecology, Department of Biology, Faculty of Natural and Life Sciences, Chadli Bendjedid University, El-Tarf, P.O. Box 73, 36000, Algeria https://orcid.org/0009-0004-6595-6203
Loubna Nefla Laboratory of Biodiversity and Ecosystem Pollution, Department of Biology, Faculty of Natural and Life Sciences, Chadli Bendjedid University, El-Tarf, P.O. Box 73, 36000, Algeria. https://orcid.org/0009-0002-1945-6641
Chahrazed Bouksiba Laboratory of Biodiversity and Ecosystem Pollution, Department of Biology, Faculty of Natural and Life Sciences, Chadli Bendjedid University, El-Tarf, P.O. Box 73, 36000, Algeria https://orcid.org/0009-0007-7275-2227
Djamel Benouareth Laboratory of Molecular and Cellular Biology, Department of Biology, Faculty of Natural and Life Sciences and Earth and Universe Sciences, University of 8 May, Guelma, Algeria. https://orcid.org/0000-0002-8564-1493

Keywords: apiculture, pollen spectrum, honey quality parameters, traditional knowledge, El Tarf-Algeria

Abstract

Honey is a natural product produced by bees from floral nectar or plant secretions. This study evaluated apicultural practices and honey quality from the El Tarf region (northeastern Algeria) using an integrated approach combining ethnomellissological surveys, melissopalynological analysis, and physicochemical characterization. A total of 36 samples representing six honey types (white heather, eucalyptus, lavender, mountain, multifloral, and orange blossom) were collected from four localities (Aïn Khiyar, Zitouna, Bougous, and Aïn Karma). Pollen analysis revealed a predominance of polyfloral honeys with variable monofloral representation. Physicochemical parameters showed significant variability among honey types (p < 0.05), with pH ranging from 3.73 to 4.37, moisture content from 13.90 % to 18.19 %, and electrical conductivity from 330.33 to 719.33 µS.cm^-1. Hydroxymethylfurfural (HMF) content varied between 41.35 and 49.80 mg.kg^-1, while total acidity ranged from 41.50 to 63.64 meq.kg^-1. Diastase activity (9.50–14.00 DN) and proline content (310–420 mg.kg^-1) also showed significant differences according to botanical origin (p < 0.05). All samples complied with international honey quality standards. Principal Component Analysis (PCA) showed that honey samples were clearly structured according to botanical origin, with electrical conductivity, proline, and acidity contributing most to variability (PC1 = 46.38 %, PC2 = 28.04 %). Monofloral honeys exhibited more homogeneous profiles, whereas multifloral samples were more dispersed, confirming significant compositional variability (p < 0.05). The results demonstrate that honey quality in the El Tarf region is primarily influenced by floral origin and local beekeeping practices, highlighting the relevance of integrating traditional knowledge with physicochemical and palynological approaches for honey authentication and quality assessment.

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