The honeybee has been known for its healing and nutritional benefits since antiquity. Many researchers proved that the properties of honey make it as one of the important natural antioxidant (Berretta et al., 2005; Boukraa, 2014). It was reported that honey with higher water content, darker color, high phenolic content has more antioxidant activity (Schramm et al., 2003; Das et al., 2015).
Several studies on phenolic profile and therapeutic potential of types of honey have been carried out in the different part of the world. However, the physicochemical properties, its chemical composition and and its therapeutic applications were reported in many part of the Algerian territory (Makhloufi et al., 2010; Benaziza-Bouchema and Schweitzer, 2010; Nair et al., 2013 ; Adjlane et al., 2014; Doukani et al., 2014). Obviously, honey chemical composition can be affected by the climatic factors, and the plant diversity. Unifloral bitter honey is produced from the nectar of Strawberry tree Arbutus unedo, a typical product of Mediterranean basin. The physicochemical properties (Alves et al., 2013; Ulloa et al., 2015) and the antioxidant activities (Rosa et al., 2011; Afrin et al., 2017) of Strawberry tree honey have been studied elsewhere. However, little is known in terms of its physicochemical parameters and bioactive properties, at the local level, although bitter honey is a field of attraction among local population regarding its therapeutic advantages. Therefore, the objectives of the present study were to compare between the physicochemical, the biochemical and the antioxidant characteristics of sweet and bitter honey collected from the forests of Skikda province, Northeast Algeria.


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