利用电能延长食品保鲜期是美国电力研究所的新技术重点研究项目，目的是在加工和包装期间用电技术消灭食品中的有害细菌，保护消费者的健康。目前的研究涉及高能电子束工艺，也称电子杀菌或辐照，它用高能脉冲破坏DNA和细胞分裂，从而消灭食品中的微生物。这样可延长食品保鲜， The use of electrical energy to extend the shelf life of food is a key new technology research project of the U.S. Electric Power Research Institute. Its purpose is to eliminate harmful bacteria in foodstuffs during the process of processing and packaging, and to protect consumers’ health. Current research involves high-energy electron beam technology, also known as electron sterilization or irradiation, which uses high-energy pulses to destroy DNA and cell division, thereby eliminating microbes in food. This will extend food preservation,