Characterization of Multifloral Bee Pollen Collected from Geographically and Botanically Distinct Regions in Tunisia

Area of Science:

• Food Science
• Nutritional Biochemistry
• Analytical Chemistry

Background:

• Bee pollen is recognized for its nutritional and therapeutic benefits.
• Tunisia's diverse ecosystems are conducive to producing high-quality bee pollen.

Purpose of the Study:

• To characterize polyfloral bee pollen from Tunisian regions.
• To analyze physicochemical and phytochemical parameters for quality assessment and nutritional evaluation.
• To assess compliance with national quality standards.

Main Methods:

• Physicochemical and phytochemical analyses using standardized methods.
• Spectrophotometry for carotenoids and chlorophylls.
• High-Performance Liquid Chromatography (HPLC) for amino acids and sugars.
• Gas Chromatography-Mass Spectrometry (GC-MS) for fatty acids.
• Atomic Absorption Spectroscopy for mineral content.

Main Results:

• Significant variations in amino acid concentrations were observed (p < 0.05), with tyrosine, aspartic acid, and glutamic acid being dominant.
• Threonine was identified as a limiting amino acid, but the proportion of total essential amino acids (TEAA) to total amino acids (TAA) met FAO recommendations.
• Sixteen fatty acids were quantified, with alpha-linolenic acid, palmitic acid, and oleic acid being primary.
• Essential minerals (K, Ca, P, Mg, Zn, Fe, Mn, Cu) were present in significant amounts.

Conclusions:

• Tunisian bee pollen exhibits valuable nutritional and biochemical properties.
• The characterized bee pollen samples generally comply with quality standards.
• Bee pollen from Tunisia is confirmed as a valuable dietary supplement.