ArticleScientific reports2025
Chemometric-guided diversity study of black turmeric essential oils from Eastern India revealed industrially feasible quality chemotypes with promising bioactivities.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Rhizomes as Multi-Target Pharmacological Platforms Against Tauopathy: Neuro-Metabolic Crosstalk, Drug-Likeness, and Translational Challenges.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Regional variability in phytochemical profiles and bioactivities of macerate and decoction extracts from three medicinal plants of Burkina Faso.Frontiers in plant science · 2026Article
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Abstract
Curcuma caesia Roxb. (Black Turmeric), a perennial herb, is known for its bluish-black rhizome and camphoraceous aroma. Although it is reported to have wide range of therapeutic activities, the chemotype selection from eco-regions of Eastern India is still scarce. The present study investigated the intraspecific diversity in essential oil (EO) yield and composition among 53 accessions and the bioactivity potential of the top 20 high oil-yielding accessions. Hydrodistillation of the rhizomes revealed significant variation in EO yield (0.31-2.53% v/w), with the highest yield observed in Curcuma caesia 43 accession. GC-MS analysis identified 60 compounds, accounting for 85.09-99.94% of the total oil composition. The identified predominant compounds were curzerenone (20.31-28.12%), camphor (8.33-19.74%), eucalyptol (2.14-18.23%), ar-turmerone (0.26-17.83%), borneol (0.91-12.40%), curzerene (1.87-4.73%). Chemometric analyses, including PCA, PLS-DA, sPLS-DA, and clustering methods such as hierarchical clustering (dendrogram) and K-means partitional clustering, effectively classified accessions into three distinct chemotype: C. caesia curzerenone, C. caesia camphor, and C. caesia eucalyptol. The DPPH assay revealed remarkable antioxidant potential, particularly in Curcuma caesia 43 accession (IC
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