Bioactive compounds and pharmacological properties of some date cultivars (Phoenix dactylifera L.)
Abstract
In this study, five Algerian date cultivars (Phoenix dactylifera L.) were investigated for their antioxidant contents, phenolic profiles, and some pharmacological properties (anti-inflammatory, anti-diabetic, and antioxidant activities). The results showed that the Tanslit cultivar was the most concentrated in total phenolic compounds and flavonoids with 433.03±0.47 96 mg QE/100g DM and 102.5±3.96 mg QE/100g DM, respectively. The Tamdjohert cultivar was the richest on anthocyanins (9.83±0.07mg CE/100g DM). HPLC analysis indicated that the Tamdjohert cultivar contained a high flavonoids concentration (8.22 ± 0.53mg/100g DM), and the Takarmoust cultivar displayed the highest concentration of phenolic acids (15.64±0.41mg/100g DM). The results indicated that the Litim cultivar exhibited strong hydroxyl radical inhibition (134.95±18.07mg GAE/100g DM), and also potently inhibited α-amylase activity (35.19±4.98%). The Tamdjohert cultivar exerted the highest reduction of inflammatory mediators (255.87±18.47mg GAE/100g DM). This study demonstrated that date fruit was a good source of bioactive compounds with important pharmacological properties and can be considered as functional food.