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Peer-reviewedCC BY-NC-NDFood chemistry: X

Carbon nanoparticles synergistically improve drought tolerance and nutraceutical innovation in okra (Abelmoschus esculentus L.): Antioxidant, antibacterial, and anti-fibrotic activities enhanced via flavonoid accumulation.

  • Jiyue Wang1,2
  • Mingli Yang3
  • Xiuhuan Meng4,3
  • Taoying Chen3
  • Nian Chen4,3
  • Yan Wang4
  • Chenggang Liang4
  • Bin Du5
5 affiliations
  1. 1Meishan Vocational & Technical College, Meishan 620000, China.
  2. 2Sichuan Provincial Key Laboratoryfor Development and Utilization of Characteristic Horticultural Biological Resources, Chengdu Normal University, Chendu 610500, China.
  3. 3Key Laboratory of Surveillance and Management of Invasive Alien Species in Guizhou Education Department, Platform for Exploitation and Utilization of Characteristic Plant Resources, College of Biological and Environmental Engineering, Guiyang University, Guiyang 550005, China.
  4. 4College of Life Sciences, Guizhou Normal University, Guiyang 550005, China.
  5. 5School of Food Science and Engineering, Guiyang University, Guiyang 550005, China.
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Abstract

Drought stress severely constrains okra (Abelmoschus esculentus) productivity and bioactive quality, yet effective mitigation strategies remain limited. Here, we demonstrate that carbon nanoparticles (CNPs) not only enhance drought tolerance-through improved root architecture, water uptake, and photosynthetic efficiency-but also uniquely reprogram flavonoid metabolism. Metabolomic profiling revealed 1025 metabolites; flavonoids were most responsive, with CNPs under drought specifically activating flavone and flavonol pathways, driving 1.55-6.86-fold accumulation of bioactive flavonoids (rutin, quercetin). Purified flavonoid extracts exhibited enhanced antioxidant and antibacterial activities, and suppressed hepatic stellate cell activation markers, suggesting nutraceutical potential beyond stress mitigation. This work establishes a dual-function CNP strategy that simultaneously improves agronomic resilience and enriches health-promoting metabolites in a major vegetable crop, addressing a critical gap in nano-enabled sustainable agriculture.

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Cite

BibTeXRIS
BibTeX
@article{wang2026carbon,
  title = {{Carbon nanoparticles synergistically improve drought tolerance and nutraceutical innovation in okra (Abelmoschus esculentus L.): Antioxidant, antibacterial, and anti-fibrotic activities enhanced via flavonoid accumulation.}},
  author = {Jiyue Wang and Mingli Yang and Xiuhuan Meng and Taoying Chen and Nian Chen and Yan Wang and Chenggang Liang and Bin Du},
  journal = {Food chemistry: X},
  year = {2026},
  month = oct,
  doi = {10.1016/j.fochx.2026.104584},
  url = {https://europepmc.org/article/MED/42927229},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Carbon nanoparticles synergistically improve drought tolerance and nutraceutical innovation in okra (Abelmoschus esculentus L.): Antioxidant, antibacterial, and anti-fibrotic activities enhanced via flavonoid accumulation.
AU  - Jiyue Wang
AU  - Mingli Yang
AU  - Xiuhuan Meng
AU  - Taoying Chen
AU  - Nian Chen
AU  - Yan Wang
AU  - Chenggang Liang
AU  - Bin Du
PY  - 2026
DA  - 2026/10/10
JO  - Food chemistry: X
DO  - 10.1016/j.fochx.2026.104584
UR  - https://europepmc.org/article/MED/42927229
AB  - Drought stress severely constrains okra (Abelmoschus esculentus) productivity and bioactive quality, yet effective mitigation strategies remain limited. Here, we demonstrate that carbon nanoparticles (CNPs) not only enhance drought tolerance-through improved root architecture, water uptake, and photosynthetic efficiency-but also uniquely reprogram flavonoid metabolism. Metabolomic profiling revealed 1025 metabolites; flavonoids were most responsive, with CNPs under drought specifically activating flavone and flavonol pathways, driving 1.55-6.86-fold accumulation of bioactive flavonoids (rutin, quercetin). Purified flavonoid extracts exhibited enhanced antioxidant and antibacterial activities, and suppressed hepatic stellate cell activation markers, suggesting nutraceutical potential beyond stress mitigation. This work establishes a dual-function CNP strategy that simultaneously improves agronomic resilience and enriches health-promoting metabolites in a major vegetable crop, addressing a critical gap in nano-enabled sustainable agriculture.
SN  - 2590-1575
ER  -