Students at Israel’s Technion Institute won the MicroBiome-Push project of “Food Solutions” – an educational program of the European food consortium, EIT Food. They used a naturally occurring bacteriophage (safe to humans) to destroy the bacteria that spoils natural fruit juice.

https://www.jewishpress.com/news/business-economy/the-juice-keepers-technion-students-use-viruses-to-stop-juice-from-spoiling/2020/12/22/