This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


peer-reviewed publication

trusted source


Lipids with potential health benefits in herbal teas identified

Lipids with potential health benefits in herbal teas
The lipids in some herbal teas have been identified in detail for the first time, preparing the ground for investigating their contribution to the health benefits of the teas. The four types of herbal tea investigated in this study for their bioactive lipids. Credit: Siddabasave Gowda

Herbal teas are enjoyed worldwide, not only for their taste and refreshment but also for a wide range of reputed health benefits. But the potential significance of a category of compounds called lipids in the teas has been relatively unexplored.

Researchers at Hokkaido University, led by Associate Professor Siddabasave Gowda and Professor Shu-Ping Hui of the Faculty of Health Sciences, have now identified 341 different molecular species from five categories of lipids in samples of four types of herbal tea. They published their results in the journal Food Chemistry.

Lipids are a diverse collection of natural substances that share the property of being insoluble in water. They include all of the fats and oils that are common constituents of many foods, but they have generally not been examined as significant components of teas.

The Hokkaido team selected four teas for their : dokudami (Houttuynia cordata, fish mint), kumazasa (Sasa veitchii), sugina (Equisetum arvense, common horsetail) and yomogi (Artemisia princeps, Japanese mugwort).

"These herbs are native to Japan and have been widely consumed as tea from due to their medicinal properties," says Gowda. The medicinal benefits attributed to these and other herbal teas include antioxidant, antiglycation, anti-inflammatory, antibacterial, antiviral, anti-allergic, anticarcinogenic, antithrombotic, vasodilatory, antimutagenic, and anti-aging effects.

The lipids in the teas were separated and identified by combining two modern analytical techniques called high-performance liquid chromatography and linear ion trap-Orbitrap mass spectrometry.

Lipids with potential health benefits in herbal teas
Separation and analysis revealed the lipid profiles of four herbal teas. Credit: Food Chemistry (2024). DOI: 10.1016/j.foodchem.2024.138941

The analysis revealed significant variations in the lipids in the four types of tea, with each type containing some known bioactive lipids. These included a distinct category of lipids called short-chain fatty acid esters of hydroxy fatty acids (SFAHFAs), some of which had never previously been found in plants. SFAHFAs detected in tea could be a novel source of short-chain fatty acids, which are essential metabolites for maintaining gut health.

"The discovery of these novel SFAHFAs opens new avenues for research," says Hui, adding that the lipid concentrations found in the teas are at levels that could be expected to have significant nutritional and medical effects in consumers.

The lipids discovered also included α-linolenic acid, already known for its anti-inflammatory properties, and which has been associated with a variety of . These two compounds are examples of a range of poly-unsaturated found in the teas, a category of lipids that are well-known for their nutritional benefits.

"Our initial study paves the way for further exploration of the role of lipids in herbal teas and their broad implications for human health and nutrition," Gowda concludes. "We now want to expand our research to characterize the lipids in more than 40 types of herbal tea in the near future."

More information: Lipsa Rani Nath et al, Dissecting new lipids and their composition in herbal tea using untargeted LC/MS, Food Chemistry (2024). DOI: 10.1016/j.foodchem.2024.138941

Journal information: Food Chemistry

Citation: Lipids with potential health benefits in herbal teas identified (2024, March 29) retrieved 20 April 2024 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Discovery of 100 fatty acids opens new research paths


Feedback to editors