Related Experiment Video
Updated: Jul 17, 2026

10:50
Transcript and Metabolite Profiling for the Evaluation of Tobacco Tree and Poplar as Feedstock for the Bio-based Industry
Published on: May 16, 2014
The Leaf Oil of Liquidambar styraciflua
1Department of Applied Sciences, Hawkesbury Agricultural College, Richmond, Australia, 2753.
Planta Medica
|June 1, 1989
Summary
The leaf oil of Liquidambar styraciflua contains 36 terpenoids, including terpinen-4-ol, alpha-pinene, and sabinene. Its high terpinen-4-ol and low 1,8-cineole content suggest potential pharmacological applications.
Area of Science:
- Phytochemistry
- Natural Products Chemistry
Background:
- Liquidambar styraciflua (Sweetgum) is a tree species with traditional uses.
- Leaf essential oils are a source of bioactive compounds.
Purpose of the Study:
- To analyze the chemical composition of Liquidambar styraciflua leaf oil.
- To identify major constituents and assess potential pharmacological relevance.
Main Methods:
- Simultaneous distillation-extraction (SDE) was used to obtain leaf oil.
- Gas chromatography (GC) and GC-mass spectrometry (GC-MS) were employed for chemical analysis.
Main Results:
- Thirty-six terpenoid components were identified in the leaf oil.
- Major constituents included terpinen-4-ol (30.1%), alpha-pinene (16.8%), and sabinene (11.2%).
- The oil exhibited a high concentration of terpinen-4-ol and a low level of 1,8-cineole.
Conclusions:
- The chemical profile of Liquidambar styraciflua leaf oil is dominated by terpenoids.
- The specific composition, particularly high terpinen-4-ol and low 1,8-cineole, indicates potential pharmacological interest.
Related Concept Videos
Adaptations that Reduce Water Loss
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
Light Acquisition
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
Esters to Carboxylic Acids: Saponification
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...

