Utilization of the date seed powder in food manufacturing

Abstract

This research was undertaken to estimate the possibility of date seeds usage in food manufacture. The date seeds were roasted, powdered (RDSP) and used in manufacture of homemade chocolate balls (CB), chocolate spread (CS) and dark chocolate (DC), where the cocoa powder (CP) was replaced by 25, 50 and 75% RDSP in each processed product mentioned above. Chemical composition, total phenol content, phenols and flavonoids compounds identification, minerals composition of RDSP, CB, CS and DC were investigated. Moreover, cytotoxicity of RDSP and sensory evaluation of CB, CS and DC samples was estimated. Results showed that RDSP exhibit an excellent content of crude fibre, total carbohydrates, total phenol, potassium, a considerable amount of sodium, iron, calcium and magnesium. The RDSP showed doses dependent cytotoxicity, where the cell viability at doses of 62.5, 125, 250, 500 and 1000 µg/ml of RDSP was 95.63, 92.48, 89.99, 75.22 and 52.85% for the MCF-7 cells, respectively and the IC50 value was 112.28 µg/ml in MCF-7 cells. The usage of RDSP caused reinforcement in the crude fibre total phenol, sodium and potassium content, improvement in phenolic and flavonoids compound of the CB, CS and DC samples, moreover, the overall acceptability of the CB, CS and DC samples was ranged between very good and good grade. Therefore, RDSP could be recommended to be used in chocolate products manufacture as a promise ingredient rich in natural antioxidants, crude fibre and had anti-cancer properties.