Physics

Plasma treatment keeps cut flowers fresher for two weeks without chemicals

AI Insight

Researchers at Griffith University have investigated the use of plasma treatment as a chemical-free method to extend the post-harvest longevity of cut flowers. The technique applies ionized gas to the flowers or their water supply, generating reactive oxygen and nitrogen species that appear to inhibit microbial growth and slow cellular degradation. Results suggest that plasma-treated flowers can remain fresh for approximately two weeks, comparable to or exceeding outcomes achieved with conventional chemical preservatives.


If scalable, this approach could reduce the floriculture industry's reliance on chemical preservatives and potentially lower environmental impacts associated with flower preservation and long-distance transport. It may also offer economic benefits to growers and retailers by reducing post-harvest losses.


From long‑distance transport to chemical preservatives, most cut flowers come with a hidden environmental cost—something a new Griffith University experiment aims to rethink.

Source: Plasma treatment keeps cut flowers fresher for two weeks without chemicals