Abstract:The vitamin B_1 and B_2 content of 25 rice (Oryza sativa L.) Varieties of differenttypes were determined.The results indicated that the vitamin B_1 content was rangedfrom 0.299 to 0.436mg/100g in brown rice and 0.087-0.195mg/100g in milledrice,while the vitamin B_2 content in brown and milled rice w