一、维生素B1(硫胺素)维生素B1属水溶性维生素。又名硫胺素、抗脚气病维生素。维生素B1对氧安定,比较耐热,特别是酸性条件下极其稳定,但在碱性条件下极不稳定,甚至在室温条件下储存,亦可逐渐破坏,所以在煮粥、煮豆或蒸馒头时,加碱过量,将造成维生素B1的大量破坏。含维生素B1丰富的食物有谷类、豆类、干果及硬果;动物的心、肝、肾、脑,瘦猪肉及蛋类含量也很丰富。蔬菜较水果含维生素B1稍多,但不是主要来源。谷类 First, vitamin B1 (thiamine) Vitamin B1 is a water-soluble vitamins. Also known as thiamine, anti-beriberi vitamins. Vitamin B1 on oxygen stability, more heat, especially under extremely acidic conditions, but very unstable in alkaline conditions, even under the conditions of storage at room temperature, but also gradually destroyed, so porridge, boiled beans or steamed bread , Excessive alkali, vitamin B1 will cause a lot of damage. Rich in vitamin B1 foods are cereals, beans, dried fruits and nuts; animal heart, liver, kidney, brain, lean pork and egg content is also very rich. Vegetables contain more vitamin B1 than fruit, but not the main source. cereal