The Commercialization of Fruit Juice Production by using High Electric Field AC Sterilization Technology

Abstract

High Electric Field alternating current (HEF-AC) is an instantaneous microbial inactivating treatment based on two electrical effects: own-generated Joule heat by electric current flowed into food, and cell membrane injuries caused by applied electric field. We investigated the sterilization mechanism of HEF-AC, developed of electrode suitable for food and performed durability test by scale-up equipment. In 2014, HEF-AC sterilizer capable of processing 5,000L per hour was put into practical use in a fruit juice production line. In Pokka Lemon 100 manufactured with this technology, the change of color and the generation of heat odor were suppressed. Furthermore this technology has been applied to milk production since 2016.