Chemo-divergence in essential oil composition among germplasm collection of five Ocimum species from eastern coastal plains of India
Abstract
The present work was aimed to study chemical diversity among Ocimum species collected from Eastern Coastal Plains of India. Seventeen accessions representing five Ocimum species namely; O. basilicum L., O. tenuiflorum, O. gratissimum L., O. americanum L. and O. citriodorum Vis. were investigated for essential oil content and oil composition by GC/FID and GC/MS. Essential oil content isolated from aerial parts of Ocimum species varied from 0.27% to 0.47% on fresh weight basis. A total of eighty-three compounds, constituting 95.2–99.9% of total oil were identified in five Ocimum species. Major volatile constituents identified were monoterpenoids (camphor, linalool, neral, nerol, geraniol, 1,8-cineole, ocimenes) and phenylpropanoids (methyl chavicol, eugenol, methyl eugenol, methyl cinnamate). Ocimum species germplasm was classified into different chemotypes. O. americanum accessions belonged to camphor-rich chemotype (38.7–51.4%); while O. gratissimum belonged to eugenol-rich chemotype (59.7–71.8%). A unique high (E)-methyl cinnamate-rich chemotype (61.3–69.0%) was identified in O. basilicum whereas eugenol and methyl eugenol-rich two chemotypes were identified in O. tenuiflorum germplasm. Essential oil profiling of O. citriodorum showed two distinct chemotypes rich in geranial/neral and methyl chavicol.
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Citral, linalool, and methyl chavicol are the three major essential oil components of O. × africanum.
“On the basis of previous studies, it has been found that citral, linalool and methyl chavicol are the three major essential oil components of Ocimum × africanum (Raina and Misra, 2017; Gurav et al., 2021; Janesha et al., 2018; Pisutthanan and Pisutthanan, 2009).”
From Vibrational spectroscopic methods for the identification and distinction of essential oils in genus Ocimum L.: A chemometric approach (2022) · cites this paper as Raina and Misra, 2017
Ocimum × africanum essential oil is characterized by estragole or methyl chavicol, linalool, and citral (neral and geranial) rich chemotypes.
“Ocimum × africanum essential oil is characterized by estragole or methyl chavicol, linalool, citral (neral and geranial) rich chemotypes (Raina and Misra, 2017; Gurav et al., 2021; Janesha et al., 2018; Pisutthanan and Pisutthanan, 2009).”
From Vibrational spectroscopic methods for the identification and distinction of essential oils in genus Ocimum L.: A chemometric approach (2022) · cites this paper as Raina and Misra, 2017
The essential oil constituents chosen for quantitative analysis were selected due to their scientific significance and pharmacological properties, identified as the predominant active volatile compounds in specific Ocimum species.
“The essential oil constituents chosen for quantitative analysis were selected due to their scientific significance and pharmacological properties, identified as the predominant active volatile compounds in specific Ocimum species [1,14,15] .”
From Untargeted metabolomics and targeted approach of essential oils to differentiate five Ocimum species using gas chromatography coupled with mass spectrometry (2024) · cites this paper as [14]
The Caryophyllene content in O. citriodorum oil (17.87-17.93%) was higher than previously reported for this species.
“Major Caryophyllene content found in the range of 17.87-17.93% in O. Citriodorum oil which was on the higher side as compared to the previous literature report on this species [14].”
From Untargeted metabolomics and targeted approach of essential oils to differentiate five Ocimum species using gas chromatography coupled with mass spectrometry (2024) · cites this paper as [14]
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Gurav, T. P., Dholakia, B. B., & Giri, A. P. (2022) · Phytochemistry Reviews · doi:10.1007/s11101-021-09767-z · Cited by 87 · see citing works
Tyagi, A., Yadav, A. K., Yadav, A., Saini, L., Kumar, V., Jain, P., Mohammad, I., Ansari, M. J., El Enshasy, H. A., Abdel-Gawad, F. K., et al. (2022) · Journal of King Saud University: Science · doi:10.1016/j.jksus.2022.102355 · Cited by 17 · see citing works
Jaiswal, R. P., Pasrija, A., Mishra, B., Gupta, P. K., & Mitra, R. (2024) · The Journal of Phytopharmacology · doi:10.31254/phyto.2024.13602 · Cited by 2 · see citing works
- Authors
- Raina, A. P., & Misra, R. C.
- Affiliations
- ICAR-National Bureau Of Plant Genetic Resources (IN)
- Indian Council of Agricultural Research (IN)
- Corresponding author
- Raina, Archana P.
- Venue
- Journal of Essential Oil Research
- Publisher
- Informa UK Limited
- Published
- 2017-10-06
- Volume
- 30
- Issue
- 1
- Pages
- 47-55
- ISSN
- 1041-2905 (ISSN-L)
- 2163-8152
- OpenAlex
- W2763278407
- Cited by
- 10
- References
- 1
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 2
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Essential Oil Research (publishedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
- Health Sciences › Medicine › Complementary and alternative medicine › Phytochemicals and Medicinal Plants
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant chemical constituents analysis
- Keywords
- Ocimum, essential oil composition, chemotypes, germplasm diversity, Ocimum basilicum, Ocimum sanctum, Ocimum gratissimum, Ocimum americanum, monoterpenoids, phenylpropanoids, eugenol, estragole, camphor
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