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Article

Chemical Composition and Antioxidant Activity of the Essential Oils of Citral-Rich Chemotype Cinnamomum camphora and Cinnamomum bodinieri

by
Qingyan Ling
1,2,
Beihong Zhang
2,
Yanbo Wang
2,
Zufei Xiao
2,
Jiexi Hou
2,
Changlong Xiao
2,
Yuanqiu Liu
1,* and
Zhinong Jin
2,*
1
Key Laboratory of Silviculture, Co-Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, College of Forestry, Jiangxi Agricultural University, Zhimin Rd. 1101, Nanchang 330045, China
2
Jiangxi Provincial Engineering Research Center for Seed-Breeding and Utilization of Camphor Trees, School of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang 330099, China
*
Authors to whom correspondence should be addressed.
Molecules 2022, 27(21), 7356; https://doi.org/10.3390/molecules27217356
Submission received: 13 September 2022 / Revised: 25 October 2022 / Accepted: 26 October 2022 / Published: 29 October 2022
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Abstract

Citral chemotypes Cinnamomum camphora (C. camphora) and Cinnamomum bodinieri (C. bodinieri) are promising industrial plants that contain abundant citral. For a more in-depth study, their significant biological effect, the chemical composition and antioxidant capacity of essential oils of citral-rich chemotype C. camphora and C. bodinieri (EOCC) were determined in the present study. The EOCC yield, obtained by hydro-distillation and analyzed by gas chromatography–mass spectrometry (GC-MS), ranged from 1.45–2.64%. Forty components more than 0.1% were identified and represented, mainly by a high content of neral (28.6–39.2%), geranial (31.8–54.1%), Z-isocitral (1.8–3.2%), E-isocitral (3.2–4.7%), geraniol (1.3–2.6%) and caryophyllene (0.6–2.4%). The antioxidant properties of EOCC were estimated by DPPH, ABTS and FRAP methods. As our results indicated, the antioxidant activity was significantly correlated to oxygenated monoterpenes. The variety of C. bodinieri (N7) presented the best antioxidant profile, given its highest inhibition of DPPH radical (IC50 = 6.887 ± 0.151 mg/mL) and ABTS radical scavenging activity (IC50 = 19.08 ± 0.02 mg/mL). To the best of our knowledge, more than 88% citral of C. bodinieri was investigated and the antioxidant properties described for the first time. Considering high essential oil yield, rich citral content and high antioxidant activity, the N7 variety will be a good candidate for pharmaceutical and cosmetic development of an improved variety.
Keywords: Cinnamomum camphora; Cinnamomum bodinieri; citral chemotype; essential oil; chemical composition; antioxidant capacity Cinnamomum camphora; Cinnamomum bodinieri; citral chemotype; essential oil; chemical composition; antioxidant capacity

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MDPI and ACS Style

Ling, Q.; Zhang, B.; Wang, Y.; Xiao, Z.; Hou, J.; Xiao, C.; Liu, Y.; Jin, Z. Chemical Composition and Antioxidant Activity of the Essential Oils of Citral-Rich Chemotype Cinnamomum camphora and Cinnamomum bodinieri. Molecules 2022, 27, 7356. https://doi.org/10.3390/molecules27217356

AMA Style

Ling Q, Zhang B, Wang Y, Xiao Z, Hou J, Xiao C, Liu Y, Jin Z. Chemical Composition and Antioxidant Activity of the Essential Oils of Citral-Rich Chemotype Cinnamomum camphora and Cinnamomum bodinieri. Molecules. 2022; 27(21):7356. https://doi.org/10.3390/molecules27217356

Chicago/Turabian Style

Ling, Qingyan, Beihong Zhang, Yanbo Wang, Zufei Xiao, Jiexi Hou, Changlong Xiao, Yuanqiu Liu, and Zhinong Jin. 2022. "Chemical Composition and Antioxidant Activity of the Essential Oils of Citral-Rich Chemotype Cinnamomum camphora and Cinnamomum bodinieri" Molecules 27, no. 21: 7356. https://doi.org/10.3390/molecules27217356

APA Style

Ling, Q., Zhang, B., Wang, Y., Xiao, Z., Hou, J., Xiao, C., Liu, Y., & Jin, Z. (2022). Chemical Composition and Antioxidant Activity of the Essential Oils of Citral-Rich Chemotype Cinnamomum camphora and Cinnamomum bodinieri. Molecules, 27(21), 7356. https://doi.org/10.3390/molecules27217356

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