1简介我国每年维生素C需求量达3万t左右，其中用在饲料工业中达2万t左右，因Vc在大多数动物体内自身不能合成，必须从外界食物中摄取。为了改善Vc的稳定性，近年来，国外的科学家研制成功一种高稳态Vc酯L-抗坏血酸-2-三聚磷酸酯（简称AsTP）。我国在吸收国外先进技术基础上，结 1 Introduction China’s annual demand for vitamin C is about 30,000 tons, of which about 20,000 tons are used in the feed industry. Vc cannot be synthesized in most animals and must be taken from the outside world. In order to improve the stability of Vc, in recent years, foreign scientists have successfully developed a high steady-state Vc ester L-ascorbic acid-2-tripolyphosphate (referred to as AsTP). Our country is absorbing foreign advanced technology based on the knot