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Background <p>This study investigates the quality of <i>Adansonia digitata</i> L. and <i>Carthamus tinctorius</i> L. edible oils from Kogi state, Nigeria. Percentage oil yield, physicochemical properties, mineral content, antioxidant activity and chemical composition were analysed using standard analytical methods and GC-MS. Significant differences (<i>P</i> ≤ 0.05) were found between samples.</p> Results <p><i>Adansonia digitata</i> L. seed oil had the highest percentage of oil yield (38.12%). <i>Adansonia digitata</i> L. seed oil had the least analysed physicochemical properties including, specific gravity (0.79 ± 0.01), peroxide value (1.14 ± 0.05 mEqO<sub>2</sub>/kg), iodine value (86.72 ± 0.80&#xa0;g/100&#xa0;g), saponification value (198.24 ± 1.10 mgKOH/g), acid value (0.82 ± 0.02 mgKOH/g), free fatty acid (0.46 ± 0.01%), refractive index (1.46 ± 0.03) and viscosity index (35.05 ± 0.53%). <i>Adansonia digitata</i> L. seed oil had the highest potassium, sodium and magnesium, while phosphorus, calcium, iron and zinc were highest in <i>Carthamus tinctorius</i> L. seed oil. Both samples showed good antioxidant activity, with <i>Adansonia digitata</i> L. seed oil being more effective. GC-MS showed that palmitic acid (18.35%) was most abundant in <i>Adansonia digitata</i> L. seed oil, while linoleic acid (25.69%) was in <i>Carthamus tinctorius</i> L. seed oil.</p> Conclusion <p>The findings from this study revealed that these edible oils are rich sources of nutritional and pharmaceutical properties.</p> Graphical Abstract <p></p>

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Characterisation and comparative quality assessment of edible oils from Adansonia digitata L. and Carthamus tinctorius L. seeds found in Kogi state, Nigeria

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月26日

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  • Godfrey Okechukwu Eneogwe,
  • Ejike Onwudiegwu Okpala,
  • Faith Obuye,
  • William Ojoniko Anthony,
  • Esther Amarachukwu Agbo,
  • Godsvictory Manafa,
  • Blessing Chichisoko Achemta,
  • Esther Izhiyi Ibrahim,
  • Bilkisu Idris Abdullahi,
  • Prince Chukwudi Ossai,
  • Ibukun Kristabel Osagbemi

摘要

Background

This study investigates the quality of Adansonia digitata L. and Carthamus tinctorius L. edible oils from Kogi state, Nigeria. Percentage oil yield, physicochemical properties, mineral content, antioxidant activity and chemical composition were analysed using standard analytical methods and GC-MS. Significant differences (P ≤ 0.05) were found between samples.

Results

Adansonia digitata L. seed oil had the highest percentage of oil yield (38.12%). Adansonia digitata L. seed oil had the least analysed physicochemical properties including, specific gravity (0.79 ± 0.01), peroxide value (1.14 ± 0.05 mEqO2/kg), iodine value (86.72 ± 0.80 g/100 g), saponification value (198.24 ± 1.10 mgKOH/g), acid value (0.82 ± 0.02 mgKOH/g), free fatty acid (0.46 ± 0.01%), refractive index (1.46 ± 0.03) and viscosity index (35.05 ± 0.53%). Adansonia digitata L. seed oil had the highest potassium, sodium and magnesium, while phosphorus, calcium, iron and zinc were highest in Carthamus tinctorius L. seed oil. Both samples showed good antioxidant activity, with Adansonia digitata L. seed oil being more effective. GC-MS showed that palmitic acid (18.35%) was most abundant in Adansonia digitata L. seed oil, while linoleic acid (25.69%) was in Carthamus tinctorius L. seed oil.

Conclusion

The findings from this study revealed that these edible oils are rich sources of nutritional and pharmaceutical properties.

Graphical Abstract