Sunflower seed kernel oil was preparated using sunflower seed kernels as raw materials.On the basis of single factor experiments,the roasting process of sunflower seed oil was optimized by orthogo-nal experiments,and its volatile substances and microstructure were analyzed.The results showed that the best roasting process was roasting temperature 150 ℃,roasting time 30 min,and squeezing water con-tent 3.5％.Under these conditions,the sunflower seed kernel oil contained 56 volatile substances,a-mong which the content of pyrazine and aldehydes w...
