At the Indian Institute of Technology (IIT) Indore, a novel LED light-based storage technology has been developed, aiming to safeguard fruits and vegetables from spoilage and enhance their shelf life, according to an official statement. This technology relies on photodynamic inactivation (PDI) of microbes, employing a kit that combines a safe, derivatized vitamin B2 spray as a photosensitizer with a flash visible light source emitting at wavelengths of 455 and 476 nm. The process is designed to eliminate microbes on both open and packaged food items, achieving complete sterilization and halting microbial reproduction.
The introduction of this technology could be particularly advantageous for small-scale farmers seeking to preserve their produce at home until favorable market prices are available. "With the help of our technology, fruits and vegetables can be preserved for 30 to 40 days without cold storage in a 10x10 square feet room at a cost of only Rs 1,000 ($11.80) per month," stated IIT Indore professor Debayan Sarkar. The methodology involves the application of blue and green LED light of specific wavelengths on produce, along with a vitamin B2 spray, thereby preventing spoilage and extending shelf life.
Furthermore, the system is integrated with a mobile application, enabling farmers to remotely monitor the condition of their stored fruits and vegetables. This technological advancement represents a significant step forward in post-harvest management practices in India.
Source: The Tribune