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用Ｆｅ（Ⅱ）－次黄嘌呤－黄嘌呤氧化酶（ｘｏ）体系，研究了宁夏枸杞水提物的抗氧化活性。结果表明：宁夏枸杞具有明显的抗氧化活性，并呈剂量－效应关系，（ｒ＝０．９２８，Ｐ＜０．０１），当宁夏枸杞水提物终浓度为０．５２、１．０４、２．０８、４．１７、８．３３ｇ／Ｌ时，其硫代巴比妥酸反应物的阻断率（ＴＢＡＳＩ）分别为２５．１％、３３．９４％、５９．９１％、７６．７９％、９５．０１％。同时与水溶性抗氧化剂维生素Ｃ进行比较，当终浓度为８．３３ｇ／Ｌ时，宁夏枸杞的抗氧化活性优于维生素Ｃ，（Ｐ＜０．０１）。从而提示，宁夏枸杞作为天然抗氧化剂，具有良好的开发前景。
Fe(II)-hypoxanthine-xanthine oxidase (xo) system was used to study the antioxidant activity of Ningxia water extract. The results showed that: Ningxia wolfberry has significant antioxidant activity, and showed a dose-effect relationship, (r = 0.928, P <0.01), when the Ningxia wolfberry aqueous extract final concentration of 0.52, 1.04, At 2.08, 4.17, and 8.33 g/L, the blockade rates of thiobarbituric acid reactants (TBASI) were 25.1%, 33.94%, 59.91%, and 76.7%, respectively. 79%, 95.01%. At the same time compared with the water-soluble antioxidant vitamin C, when the final concentration was 8.33g/L, the antioxidant activity of Ningxia wolfberry was better than that of vitamin C (P<0.01). This suggests that Ningxia wolfberry has a good development prospect as a natural antioxidant.