A REVIEW ON DETECTION METHODS FOR IRRADIATED FOOD DEVELOPMENTAL STRATEGY OF FOOD IRRADIATION IN HENAN PROVINCE AFTER CHINA ENTERING WTO RESEARCHES AND COMMERCIALIZATION OF FOOD IRRADIATION TECHNOLOGY IN CHINA THE APPLICATION ANALYSIS OF HIGH ENERGY ELECTRON ACCELERATOR IN FOOD IRRADIATION PROCESSING APPLICATION AND CHARACTERISTICS OF FOOD IRRADIATION BY ELECTRON BEAM HYDROGEN PEROXIDE IN IRRADIATED LIQUID FOODS PROGRESS IN THE STUDY OF REDUCING FOOD ALLERGENICITY BY IRRADIATION