<p>Pumpkin (<i>Cucurbita moschata</i> and <i>Cucurbita maxima</i>) represents a promising yet underexplored reservoir of bioactive compounds, with in vitro antioxidant and compositional data suggesting potential health benefits, which require further in vivo validation. However, comparative studies addressing their biochemical and antioxidant differences remain scarce. This work seeks to characterize the nutritional composition, antioxidant activity and molecular features of pumpkin pulp powders. Spectrophotometric and FTIR analyses revealed that <i>C. maxima</i> contained significantly higher phenolic (472 ± 4.8&#xa0;mg GAE/100&#xa0;g) and carotenoid contents than <i>C. moschata</i> (137 ± 6.4&#xa0;mg GAE/100&#xa0;g), which translated into superior DPPH and ABTS radical scavenging capacities. These results suggest that <i>C. maxima</i> exhibits a stronger antioxidant activity, which may be attributed to its richer phenolic and pigment composition. Overall, this work highlights the complementary properties of both species and supports their utilization as sustainable ingredients for nutraceutical and health-oriented food formulations, opening new perspectives for the development of innovative products.</p>

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Comparative biochemical and antioxidant profiling of Cucurbita moschata and Cucurbita maxima: insights into functional and nutraceutical potential

  • Sonia Dhifli,
  • Hela Mahmoudi,
  • Yassine M’Rabet,
  • Ibtissem Ghanmi,
  • Silvia Bobadilla,
  • Jaime Zacarias,
  • Maria Teresa,
  • Abdennacer Boulila,
  • Mondher Mejri,
  • Ana Salvador

摘要

Pumpkin (Cucurbita moschata and Cucurbita maxima) represents a promising yet underexplored reservoir of bioactive compounds, with in vitro antioxidant and compositional data suggesting potential health benefits, which require further in vivo validation. However, comparative studies addressing their biochemical and antioxidant differences remain scarce. This work seeks to characterize the nutritional composition, antioxidant activity and molecular features of pumpkin pulp powders. Spectrophotometric and FTIR analyses revealed that C. maxima contained significantly higher phenolic (472 ± 4.8 mg GAE/100 g) and carotenoid contents than C. moschata (137 ± 6.4 mg GAE/100 g), which translated into superior DPPH and ABTS radical scavenging capacities. These results suggest that C. maxima exhibits a stronger antioxidant activity, which may be attributed to its richer phenolic and pigment composition. Overall, this work highlights the complementary properties of both species and supports their utilization as sustainable ingredients for nutraceutical and health-oriented food formulations, opening new perspectives for the development of innovative products.