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<p>The Golden Delicious variety of <i>Malus domestica</i> 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&#xa0;g/100&#xa0;g; acid values 0.332 ± 0.20, 0.3633 ± 0.21 mgKOH/g oil; saponification values 112.2 ± 0.53–70.04 ± 1.20&#xa0;mg KOH/g oil; peroxide values 5.233 ± 0.21; 6. 167 ± 0.21 meq O<sub>2</sub>/kg oil and iodine values 101.84 ± 1.13; 106.93 ± 1.20 g I<sub>2</sub>/100g. All these findings were significantly different (P &lt; 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&#xa0;mg/kg, followed by 440&#xa0;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.</p> Graphical abstract <p></p>

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Valorization of Apple Waste from Cold Storage Through Seed Oil Extractions in Western Algeria

  • 期刊论文

  • 发表日期：

    2025年6月3日

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  • Ikram Boufera,
  • Ourida Chouitah,
  • Fatima Zohra Kiari,
  • Yehia Khelef,
  • Ramazan Erenler,
  • Ibrahim Demirtas,
  • Mehmet Hakki Alma

摘要

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 O2/kg oil and iodine values 101.84 ± 1.13; 106.93 ± 1.20 g I2/100g. 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.

Graphical abstract