This study aimed to determine the palynological and physicochemical properties of multifloral honey collected from different regions of Algeria. A total of 24 different honey samples have been analysed for various physicochemical parameters (moisture, electrical conductivity, pH, acidity (free, lactone and total), Hydroxymethylfurfural (HMF), proteins, color, total sugars, fructose, glucose, sucrose, and fructose/glucose ratio). The results obtained in the present study show the variability of the chemical composition of the honey samples. The results of the study indicated that most of the honey samples were of good quality, and were found to meet all major international honey specifications. From the palynological point of view, 62.5% of the samples had a moderate amount of pollen grains per 10 gram of honey (class II); seven samples (29.16%) were rich in pollen (class III), and only two samples (8.33%) had a low pollen concentration (class I). A total of 94 pollen types, belonging to 48 botanical families, were identified. The pollen types identified per sample vary from 15 to 37, with an average of 27 types. The best represented families were Fabaceae, Boraginaceae, and Asteraceae, which present in all the samples. The best represented secondary pollen types were Echium sp., Trifolium sp., Peganum harmala, Eucalyptus sp., Olea europaea, Chenopodium sp., Ononis natrix, and Ziziphus lotus. The qualitative pollen analysis demonstrated the important participation of nectarless plants in the makeup of the honeys, especially Chenopodium sp., and Olea europaea.

本研究旨在确定从阿尔及利亚不同地区采集的多花蜂蜜的孢粉学和理化特性。共分析了 24 种不同的蜂蜜样品的各种理化参数（水分、电导率、pH 值、酸度（游离、内酯和总酸度）、羟甲基糠醛 (HMF)、蛋白质、颜色、总糖、果糖、葡萄糖、蔗糖和果糖/葡萄糖比率）。本研究中获得的结果显示了蜂蜜样品化学成分的可变性。研究结果表明，大部分蜂蜜样品质量良好，符合所有主要国际蜂蜜规格。从孢粉学的角度来看，62.5%的样品每10克蜂蜜中含有适量的花粉粒（II类）；七个样本 (29. 16%）富含花粉（III 类），只有两个样本（8.33%）的花粉浓度较低（I 类）。共鉴定出属于 48 个植物科的 94 种花粉类型。每个样本鉴定的花粉类型从 15 种到 37 种不等，平均为 27 种。最具代表性的科是豆科、紫草科和菊科，它们存在于所有样本中。最具代表性的次生花粉类型是Echium sp.、Trifolium sp.、Peganum harmala、Eucalyptus sp.、Olea europaea、Chenopodium sp.、Ononis natrix和Ziziphus lotus。定性花粉分析表明无花蜜植物在蜂蜜的构成中发挥了重要作用，尤其是藜属植物和油橄榄。