Intraspecific Chemical Variability of Essential Oil of Curcuma caesia (Black Turmeric)

  • PDF / 736,662 Bytes
  • 8 Pages / 595.276 x 790.866 pts Page_size
  • 98 Downloads / 171 Views

DOWNLOAD

REPORT


RESEARCH ARTICLE-BIOLOGICAL SCIENCES

Intraspecific Chemical Variability of Essential Oil of Curcuma caesia (Black Turmeric) Subhashree Singh1 · Bhaskar Chandra Sahoo1 · Asit Ray1 · Sudipta Jena1 · Manaswini Dash1 · Sanghamitra Nayak1 · Basudeba Kar1 · Suprava Sahoo1 Received: 17 July 2020 / Accepted: 1 September 2020 © King Fahd University of Petroleum & Minerals 2020

Abstract Rhizome essential oil of Curcuma caesia has myriad of therapeutic activities which is being practiced since ages as folklore remedy but commercially remained underutilized till date. Though previous reports had characterized the phytoconstituents of C. caesia essential oil, a comparative assessment will lead to identify a good germplasm for commercialization. Quality germplasm should have high yield and quality constituents. Hence, the current study deals with intraspecific variability of C. caesia rhizome essential oil associated with two geographical regions, i.e., Odisha and West Bengal. The Principal Component Analysis and Agglomerative Hierarchical Clustering analysis distinguished two groups of essential oils on the basis of the phytoconstituents. The highest oil yield was found in Mayurbhanj (0.64 ± 0.015% w/w) population, whereas the lowest oil yield was in South 24-Parganas population (0.39 ± 0.01% w/w). The chemical constituents of C. caesia were analyzed by Gas Chromatography–Mass Spectrometry which detected a total of 34 compounds accounting to 90.08–97.94% of the total oil. Oxygenated monoterpenes constituted the major fraction followed by oxygenated sesquiterpenes. West Bengal accessions were dominated by oxygenated monoterpenes (34.8–45.41%) followed by oxygenated sesquiterpenes (26.63–38.06%). However, Odisha accessions were rich in oxygenated monoterpenes (37.6–54.36%) followed by sesquiterpene hydrocarbons (21.9–33.8%). In this study, phytochemical variability in C. caesia associated with geographical distribution patterns has been successfully studied in respect of essential oil yield and quality. Keywords Essential oil · Curcuma caesia · Ecoregion · Diversity

1 Introduction Essential oils are aromatic raw material which is commercially being used over the past 200 years for their medicinal and aromatic properties [1]. The essential oil being one of the secondary metabolites is responsible for different activities due to the interaction of the varied complex constituents present within. Till date, around 3000 essential oils are known, out of which approximately 300 are in use mostly in fragrance industry [2–5]. But there are certain essential oils which have myriads of therapeutic activities and are popularly known for its traditional medicinal applications. Curcuma caesia native to Central and North East

B 1

Suprava Sahoo [email protected] Center for Biotechnology, Siksha ‘O’ Anusandhan (Deemed To Be University), Campus II, Kalinga Nagar, Ghatikia, Bhubaneswar, Odisha 751003, India

India is one such plant whose rhizome essential oil is being used since ages as folklore remedy but not commercially exploited till