吊白块又名雕白粉,化学名甲醛合次硫酸氢钠,是印染、造纸工业也难怪的漂白剂。近年来常有不法商贩将其添加在面粉、腐竹、白糖等食品中,以增加食品的感官性状和口感。把吊白块作为添加剂添加在食品中其主要残留物质是甲醛和二氧化硫,都对人体产生巨大危害,尤其是甲醛是一种潜在 Diao white block, also known as carved white powder, chemical name of formaldehyde sodium bisulfate, printing and dyeing, paper industry is also no wonder the bleach. In recent years, unscrupulous traders often add it to the flour, yuba, sugar and other foods to increase the sensory properties of food and taste. The white sticks as an additive added to food in the main residual substances are formaldehyde and sulfur dioxide, all have a tremendous harm to humans, especially formaldehyde is a potential