Buenos Aires - - Thursday 24 De September

Home Argentine Knowledge Create photodisinfectant to replace agrotoxics

Create photodisinfectant to replace agrotoxics

UNSL scientists created a photodisinfectant that would be applied in fruit and vegetable products, replacing agrotoxics.


Scientists from the  National University of San Luis  (UNSL) developed a  photodisinfectant  for  frutihorti products; glues  that replaces the use of agrotoxics and allows fruits and vegetables to reach the consumer's table in good state of conservation.

The photodisinfectant is activated when it is in the presence of light, either solar or lamps, and kills microorganisms while they are being illuminated. This allows “to eliminate fungi and bacteria,” explained  Matías Funes , assistant researcher at the Conicet who directed the study.

Among the advantages of the product that works as an insecticide, bactericidal or fungicide, it is noted that it quickly degrades with light. In addition, it does not produce accustoming and, as it is transparent, does not cover the nozzles of any applicators. They can be applied manually or using airplanes, so you save a lot of time on their administration.

college students

 The source of photodisinfectant 

The photodisinfectant compound is formulated with  nanoemulsions , which are small emulsions that make it look clear and clean. It is not a synthesis  product  as it is obtained from a plant that is easily found in St. Louis.

It is  St. John's wort , an ornamental plant that can be planted to make the product. It is developed by botanists, specialists in photochemistry, physicochemists, through a research project that began 6 years ago, the scientist said.

 Utility and application 

Replacing the agrotoxics used in mass crops adds to the health of the population and avoids the long chain of toxicity. “Agrotoxics produce great pollution in soils, water and even people's bodies,” said Funes.

The scientist indicated the process to validate the discovery of photodisinfectant. Two peppers were exposed to the action of the sun for five days and the one treated showed no variation in its texture and consistency, internal and external. The other pepper exhibited mushrooms on its surface on the third day.

Funes also explained the advantages for productions such as blueberries, which must withstand a harvest time and transport from the origin to the gondolas. With the photodisinfectant they could reach their consumers in healthy conditions.

The specialist revealed that companies that were interested in its use are from the agro-industrial sector. They would apply it on a large scale, although he clarified that the research team is also interested in getting it to the citizen. For  orchards  or a small production.

This photo disinfectant arose from the idea of adding added value to the native flora. This product also opened research for painkillers. These are made from carqueja under the dynamics of  development  more innovation (R&D) that drives the  public university .


Source:  LA V  O

Publication Date: 03/01/2020

Rate this item


I wrote! Reader Notes

Go to section


There are not comments

Leave feedback


Celeste Muriega Celeste Muriega, a luxury interviewee

The driver talked to Serargentino.com. He spoke of tastes, passions and his present in Miami, after...

mujeres en feria de artesanos Shall we go to the fair?

Vegetable, handicrafts, antiques. Going to the fair is a necessary routine in Santa Fe, as well as a...

Batalla de Tucumán Remembering the Battle of Tucumán

We tell you about the impressive battle led by Belgrano in San Miguel de Tucumán.

Argentines around the world
 Tec, The largest mural in the world

We tell you the story of a Cordoba artist who painted one of the largest murals in São Paulo. He is...


I want to be up to date

Subscribe to our newsletter and I received the latest news