根据最新研究报告 ,在 2 0 0 2～ 2 0 0 7年期间 ,价值 2 2亿美元的世界维生素市场将处于停滞不前的局面 ,使生产商的改组和降低成本工作处于困境。维生素生产商利润率降低 ,使许多公司不得不集中力量理顺生产和降低生产成本。由于采用发酵工艺比采用化学合成工艺有更大的降低 According to the latest research report, the world vitamin market valued at 2.2 billion U.S. dollars will be at a standstill during 2002-2007, putting manufacturers in a difficult position to restructure and reduce costs. The lower profit margins for vitamin producers have forced many companies to concentrate on rationalizing production and lowering production costs. Due to the use of fermentation process than the use of chemical synthesis process has been greatly reduced