上世纪80年代初,我高考落榜后就跟着父亲搞肠衣加工。一天在翻阅报刊时,突然看见:小肠加工肠衣后的下脚料能提取一种贵重生化药品原料——肝素钠,这一信息让我高兴得手舞足蹈。为进一步了解这信息,我当天就赶到县邮电局,拨通了上海某生物研究所的电话。该所介绍:一副小肠的肠粘膜可创产值2元,利润1元以上,上海、南京等地的生化厂大量收购。为核实此 In the early 1980s, after my college entrance exam, I followed my father’s casing process. When I read the newspapers one day, I suddenly saw that the leftovers after the small intestines processed the casings could extract a precious biochemical raw material, heparin sodium, which made me glad to dance. To further understand this information, I rushed to the county post office on the same day and dialed a telephone call from a biological institute in Shanghai. The Institute introduced: A small intestine of the intestinal mucosa can create a production value of 2 yuan, a profit of more than 1 yuan, a large number of biochemical plants in Shanghai, Nanjing and other places. To verify this