Abstract:Peanuts adsorb water and become mildewed when left in the air.For the sake of peanut quality，peanuts in shell and peanut kernels were stored separately in N2atmosphere，and the quality indexes were monitored，mainly including moisture content，germination rate，and color of them，and acid value，peroxide value，iodine value，and vitamin E content of the oil extracted from them.The experimental results showed that the moisture content of peanuts in shell ranged from 4.97% to 6.46% and that of peanut kernels fell in the range of 4.79%-5.60% during the storage in N2atmosphere.In addition，the germination rates of both peanuts in shell and peanut kernels were higher than 90%.The a*and b*values of the two demonstrated an increasing trend，and the values of peanut kernels were higher than those of peanuts in shell，indicating that storage in shell delayed the color deepening.The quality of oil extracted from peanuts in shell and peanut kernels was measured.The acid value and peroxide value displayed an increasing trend，and the vitamin E content showed a decreasing trend.During storage，the acid value and peroxide value of oil extracted from peanut kernels were relatively higher than those of the oil extracted from peanuts in shell，suggesting that peanuts in shell were more stable than peanut kernels for the delayed oxidative rancidity during storage.