Food Ultrasound

Ultrasound just scored another win in the world of food preservation, this time for one of the trickiest fruits to keep fresh once it's cut: dragon fruit, or pitaya. Researchers at Jinzhou Medical University in China developed a taurine-loaded nanoemulsion using low-frequency ultrasonic processing that dramatically slows the browning, softening, moisture loss, and microbial spoilage that usually make fresh cut pitaya unsellable within days. The findings, published in Frontiers in Nutrition, offer a compelling example of how ultrasonic technology is quietly reshaping the food industry's approach to shelf life, safety, and sustainability themes that resonate strongly with the growing global community of ultrasonic cooking and food-science practitioners tracked by platforms such as Ultrasonic Chef. Why Fresh Cut Fruit Is So Hard to Keep Fresh Pre-cut fruit is a convenience shoppers love, but it's a nightmare for food scientists. The moment a knife breaks the skin, the expose...