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author:

李忠琴 (李忠琴.) [1] | 许小平 (许小平.) [2] (Scholars:许小平) | 王武 (王武.) [3]

Indexed by:

CQVIP PKU CSCD

Abstract:

利用反向高效液相色谱(RP-HPLC)测定该酶产物尿酸的生成量,研究黄嘌呤氧化酶的酶学特性.结果表明,在50mmol/L Tris-HCl缓冲液和0.24mmol/L黄嘌呤的体系中,该酶检测反应的最适温度为37℃,最适pH8.4.XOD在pH7.0~9.0,40℃以下稳定,对黄嘌呤的Km值为0.043mmol/L.XOD酶激活剂包括水杨酸钠、半胱氨酸、组胺、硫酸铵、乙二胺四乙酸等.金属离子对其活性有抑制作用.低浓度表面活性剂Tween 80、SDS和Triton X-100对该酶活力影响不明显.

Keyword:

稳定性 酶学特性 黄嘌呤氧化酶

Community:

  • [ 1 ] [李忠琴]江南大学
  • [ 2 ] [许小平]福州大学
  • [ 3 ] [王武]江南大学

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Source :

食品科学

ISSN: 1002-6630

CN: 11-2206/TS

Year: 2008

Issue: 9

Volume: 29

Page: 420-422

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 1

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