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<p><i>Dendrobium</i> Sonia ‘Jo Daeng’ is a major commercial hybrid cultivated for cut flowers in Thailand and represents a potential source of bioactive compounds for value-added applications. This study aimed to optimize the temporary immersion system (TIS) bioreactor conditions for the efficient large-scale propagation of <i>D.</i> Sonia ‘Jo Daeng’ and to evaluate the physicochemical properties and bioactivities of the resulting plant biomass. Optimized culture conditions yielded healthy plantlets with desirable morphological characteristics and consistent biomass production. Biochemical analyses revealed that the plantlets contained considerable amounts of polysaccharides, phenolics, flavonoids, and vitamin C. These constituents exhibited significant antioxidant and tyrosinase inhibitory activities. Ethanolic extracts were non-cytotoxic to B16F10 melanoma cells and retained their bioactive properties under refrigerated storage, indicating biosafety and stability. Although no antibacterial activity against <i>Staphylococcus aureus</i> was observed, the extracts displayed moisturizing properties, highlighting their potential utility in skincare formulations. Overall, the results indicate that TIS bioreactors can be applied for the controlled production of <i>Dendrobium</i> biomass containing bioactive constituents. This study provides preliminary evidence supporting the potential use of tissue culture–derived orchid biomass as a source of functional plant materials and offers a foundation for further investigation into downstream applications.</p>

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Optimized bioreactor cultivation enhances biomass productivity and bioactive metabolite accumulation in Dendrobium Sonia ‘Jo Daeng’

  • 期刊论文

  • 发表日期：

    2026年2月20日

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  • Budsaraporn Ngampanya,
  • Suwimon Datarun,
  • Patthicha Deesubin,
  • Pornsak Sriamornsak,
  • Kullanart Obsuwan

摘要

Dendrobium Sonia ‘Jo Daeng’ is a major commercial hybrid cultivated for cut flowers in Thailand and represents a potential source of bioactive compounds for value-added applications. This study aimed to optimize the temporary immersion system (TIS) bioreactor conditions for the efficient large-scale propagation of D. Sonia ‘Jo Daeng’ and to evaluate the physicochemical properties and bioactivities of the resulting plant biomass. Optimized culture conditions yielded healthy plantlets with desirable morphological characteristics and consistent biomass production. Biochemical analyses revealed that the plantlets contained considerable amounts of polysaccharides, phenolics, flavonoids, and vitamin C. These constituents exhibited significant antioxidant and tyrosinase inhibitory activities. Ethanolic extracts were non-cytotoxic to B16F10 melanoma cells and retained their bioactive properties under refrigerated storage, indicating biosafety and stability. Although no antibacterial activity against Staphylococcus aureus was observed, the extracts displayed moisturizing properties, highlighting their potential utility in skincare formulations. Overall, the results indicate that TIS bioreactors can be applied for the controlled production of Dendrobium biomass containing bioactive constituents. This study provides preliminary evidence supporting the potential use of tissue culture–derived orchid biomass as a source of functional plant materials and offers a foundation for further investigation into downstream applications.