Phenolic composition and antioxidant capacities of ten Algerian date (Phoenix dactylifera L.) cultivars: A comparative study

Phenolic compounds and antioxidant capacities of ten Algerian date (Phoenix dactylifera L.) cultivars were investigated. The total phenolic, flavonoid, flavonol and condensed tannin contents of the different cultivars were measured using colorimetric methods. Free phenolic acid and flavonoid profiles of the date cultivars were analyzed by high performance liquid chromatography with diode array detection (HPLC-DAD), […]

Enzyme activity and biochemical changes of three date palm cultivars with different softening pattern during ripening

The physicochemical composition changes during palm ripening were studied. The activities of invertase and cell wall-modifying enzymes, namely pectin methylesterase (PME), β-galactosidase (β-Gal), endo-1,4-β-d-glucanase (EGase), and cellulase were monitored during growth and ripening of Shahani, Piaro and Deiry cultivars with different texture. Also we estimated the concentrations of six organic acids by HPLC .Reducing sugars, […]

Effects of pyrolysis conditions on the porous structure development of date pits activated carbon

Activated carbons were prepared from biomass of Algerian date pits for developing efficient and cheap adsorbents in the aim to remove heavy metals from waste water. Carbon adsorbents were obtained following two successive treatments: pyrolysis under dry nitrogen flow and physical activation under wet nitrogen flow. Pyrolysis process was optimized by varying some operating parameters […]

Use of date (Phoenix dactylifera L.) blanching water for reconstituting milk powder: yogurt manufacture

The processing of dates yields high volumes of blanching water. The use of such blanching water for reconstituting skim milk powder to produce low fat yogurt was studied. Physicochemical properties and antioxidant activity of two date cultivars (Medjoul and Confitera) blanching water were determined. Quality characteristics of yogurts (control; Medjoul and Confitera) were evaluated during […]

Nutritional quality of 18 date fruit varieties

The aim of the present study was to analyze and compare the chemical and physical properties of 18 varieties of the date fruits from date palm (Phoenix dactylifera); which are regarded as popular fruit commodities among the populace of the Middle Eastern peninsula. Dietary fiber; proximate analysis; micronutrients (micro-elements and macro-elements) and physical properties (weight; […]