The optimum precipitation conditions of Jujube date polysaccharide were obtained as follows: The extracting liquid was concentrated4 times, adding4 times volume ethanol and making the final concentration of alcohol80%.

• 本文研究了红枣多糖的沉淀条件,并对所提取的红枣多糖粗品的抗氧化作用进行了探讨。