MIT Microneedles Keep Vegetables Fresh Without a Fridge
MIT researchers used tiny needles to deliver melatonin into freshly cut pak choy after harvest. In lab tests, the treated vegetables stayed saleable for four extra days at room temperature. The method does not need refrigeration.
Context
Context: Food spoilage between harvest and sale is a long-running problem, and cold storage is costly for many farmers. Melatonin is a hormone best known for regulating sleep, and this work is still at lab-study stage.
Burning Potato score: 70%