Research Information System
WASTE AND BIOMASS VALORIZATION, 2025 (SCI-Expanded)
The Golden Delicious variety of Malus domestica apples, grown on the Ghriss plain in western Algeria, was widely consumed. However, fungal spoilage during cold storage was a main problem, resulting in significant waste.The present study focuses on the valorization of apple seed waste for the extraction of vegetable oils using n-hexane and petroleum ether solvents, separately with a Soxhlet apparatus.The physicochemical properties were assessed according to AOCS methods, while GC-FID and HPLC-DAD analyses were used to detect the fatty acid composition, and quantify alpha-tocopherol, respectively. The results revealed that the oil yields were 23.06 and 22.55%,with refractive indices of 1.4711, 1.4685, moisture contents 8.43 +/- 0.35; 16.90 +/- 0.09 g/100 g; acid values 0.332 +/- 0.20, 0.3633 +/- 0.21 mgKOH/g oil; saponification values 112.2 +/- 0.53-70.04 +/- 1.20 mg KOH/g oil; peroxide values 5.233 +/- 0.21; 6. 167 +/- 0.21 meq O-2/kg oil and iodine values 101.84 +/- 1.13; 106.93 +/- 1.20 g I-2/100g. All these findings were significantly different (P < 0.05), except for the acid value. Linoleic acid was detected as the dominant fatty acid, followed by oleic acid and then palmitic acid. The highest linoleic acid content was 54.78%, and the highest oleic acid content was 36.13%. The highest alpha-tocopherol content was 540 mg/kg, followed by 440 mg/kg. In conclusion, based on these interesting findings, apple seed oils from cold storage waste, could serve as a new source of fatty acids, and alpha-tocopherol for use in cosmetics, pharmaceuticals and the food industry.