Variations in compositions and antioxidant activities of essential oils from leaves of Luodian Blumea balsamifera from different harvest times in China

PLoS One. 2020 Jun 16;15(6):e0234661. doi: 10.1371/journal.pone.0234661. eCollection 2020.

Abstract

Xanthoxylin was the main compound (content 44.92% of total volatiles) in the leaves of Luodian B. balsamifera, which might be the key cause of failure in collecting essential oil (EO) of the leaves using general hydrodistillation in Clevenger apparatus. A modified hydrodistillation equipped with Clevenger apparatus was designed for isolating EO from the leaves. Six EOs of Luodian B. balsamifera harvested once a month from September to next February were collected successfully. The main components of EOs were δ-elemene, α-cubenene, caryophyllene, caryophyllene epoxide, γ-eudesmol, xanthoxylin, and α-eudesmol. The EOs of Luodian B. balsamifera collected from October to December had higher antioxidant activities (ACs). Combining the principal component analysis of chemical components with the results of ACs and the yields of six EOs, the leaves of Luodian B. balsamifera were suitable to be harvested in November and December to obtain EO with high quality.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antioxidants / isolation & purification*
  • Antioxidants / pharmacology
  • Asteraceae / chemistry*
  • China
  • Distillation / instrumentation
  • Distillation / methods
  • Oils, Volatile / chemistry*
  • Oils, Volatile / pharmacology
  • Plant Leaves / chemistry
  • Plant Oils / chemistry
  • Plant Oils / pharmacology
  • Polycyclic Sesquiterpenes / isolation & purification
  • Seasons
  • Sesquiterpenes / isolation & purification

Substances

  • Antioxidants
  • Oils, Volatile
  • Plant Oils
  • Polycyclic Sesquiterpenes
  • Sesquiterpenes
  • elemene
  • caryophyllene

Grants and funding

The leaves of Luodian Blumea balsamifera were collected from planting base belonging to Gui Zhou Ai Yuan Eco-Pharmaceutical Development Co. Ltd. (abbreviation: Ai Yuan). Ai Yuan received the support of the local government and the support of Chinese Innovation Fund for Technology Based Firms and Guizhou’s Innovation Fund for Technology Based Firms. The authors have a confidential cooperative relationship with Ai Yuan. This work was supported by Henan University of Technology under Henan University of Technology High-level Talents Fund (2015BS009). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.