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<p><i>Pereskia aculeata</i> Miller, popularly known as ora-pro-nóbis, is a nutritionally valuable Unconventional Food Plant (UFP) with growing interest for agricultural production. However, little is known about how cultivation practices, such as planting density, influence its nutritional composition. This study evaluated the impact of different planting densities on the production of bioactive compounds in two <i>P. aculeata</i> clones (57009 and 58827), cultivated under four densities (1, 8, 16, and 32 plants/m<sup>2</sup>). The total protein and phenolic contents remained stable across planting densities, with average protein concentrations of 113.09 ± 11.90&#xa0;mg/g and 130.94 ± 14.79&#xa0;mg/g of fresh mass in clones 57009 and 58827, respectively. Flavonoid content was significantly higher in clone 57009, with up to 78% more flavonoids than clone 58827 at the lowest planting density. However, flavonoid concentration in clone 57009 decreased by approximately 50% as planting density increased. Clone 58827 showed a 43% increase in carotenoid content at higher densities compared to the lowest density. In contrast, antioxidant activities (ABTS&#xa0;and DPPH), hydrogen peroxide (H₂O₂), and nitric oxide (NO) levels were not significantly affected by planting density. These findings demonstrate the distinct biochemical profiles of <i>P. aculeata</i> clones and highlight how planting density influences the accumulation of specific bioactive compounds.</p>

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Phytochemical Analysis of Two Pereskia Aculeata Clones Under Different Planting Densities

  • 期刊论文

  • 发表日期：

    2025年10月15日

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  • Lucas Moreira Maia,
  • Bianca Cristina Carvalho Reis,
  • Maria Regina de Miranda Souza,
  • Maira Christina Marques Fonseca,
  • Cleide Maria Ferreira Pinto,
  • Tiago Antônio de Oliveira Mendes

摘要

Pereskia aculeata Miller, popularly known as ora-pro-nóbis, is a nutritionally valuable Unconventional Food Plant (UFP) with growing interest for agricultural production. However, little is known about how cultivation practices, such as planting density, influence its nutritional composition. This study evaluated the impact of different planting densities on the production of bioactive compounds in two P. aculeata clones (57009 and 58827), cultivated under four densities (1, 8, 16, and 32 plants/m2). The total protein and phenolic contents remained stable across planting densities, with average protein concentrations of 113.09 ± 11.90 mg/g and 130.94 ± 14.79 mg/g of fresh mass in clones 57009 and 58827, respectively. Flavonoid content was significantly higher in clone 57009, with up to 78% more flavonoids than clone 58827 at the lowest planting density. However, flavonoid concentration in clone 57009 decreased by approximately 50% as planting density increased. Clone 58827 showed a 43% increase in carotenoid content at higher densities compared to the lowest density. In contrast, antioxidant activities (ABTS and DPPH), hydrogen peroxide (H₂O₂), and nitric oxide (NO) levels were not significantly affected by planting density. These findings demonstrate the distinct biochemical profiles of P. aculeata clones and highlight how planting density influences the accumulation of specific bioactive compounds.