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日用化学工业 ›› 2017, Vol. 47 ›› Issue (4): 219-222.doi: 10.13218/j.cnki.csdc.2017.04.008

• 开发与应用 • 上一篇    下一篇

睡莲花提取物对酪氨酸酶的抑制作用及其动力学研究

李倩1, 李晨阳2, 詹羽娇2, 买吾拉江·阿不都热衣木1, 徐芳2, 赵军2   

  1. 1.新疆大学 生命科学与技术学院,新疆 乌鲁木齐 830046;
    2.新疆药物研究所 维吾尔药重点实验室,新疆 乌鲁木齐 830004
  • 收稿日期:2016-12-16 发布日期:2019-03-20
  • 通讯作者: 赵 军,研究员,E-mail:zhaojun21cn@163.com。
  • 作者简介:李 倩(1992-),女,四川人,硕士研究生,电话:(0991)2320227,E-mail:yaaitingzheng@163.com。
  • 基金资助:
    新疆维吾尔自治区公益性科研院所基本科研业务费专项资金资助项目(kygy2016166)

Inhibitory action of extracts from water lily flower on tyrosinase activity and its kinetics

LI Qian1, LI Chen-yang2, ZHAN Yu-jiao2, ABUDUREYIMU Maiwulajiang1, XU Fang2, ZHAO Jun2   

  1. 1.College of Life Sciences & Technology,Xinjiang University,Urumqi,Xinjiang 830046,China;
    2.Xinjiang Key Laboratory for Uighur Medicines,Xinjiang Institute of Materia Medic,Urumqi,Xinjiang 830004,China
  • Received:2016-12-16 Published:2019-03-20

摘要: 采用紫外分光光度计测定多巴醌,得到了睡莲花提取物对酪氨酸酶的抑制率;以L-酪氨酸为底物,采用酶动力学的方法研究了睡莲花提取物对酪氨酸酶单酚酶活性的抑制作用及抑制机制。结果表明,睡莲花提取物对酪氨酸酶具有明显抑制作用,其中30%乙醇洗脱部位抑制效果最好,其对酪氨酸酶单酚酶活性的抑制作用表现为可逆反竞争型抑制;50%乙醇洗脱部位对酪氨酸酶单酚酶活性的抑制作用表现为可逆性抑制,低浓度时为混合型,高浓度时为竞争型。

关键词: 美白化妆品添加剂, 睡莲花提取物, 酪氨酸酶, 抑制机制, 动力学

Abstract: Tyrosinase inhibitory ratio of extracts from water lily (Nymphaea candida Presl.) flower (70% ethanol extract,NCE;30% ethanol elution parts,NCEA;50% ethanol elution parts,NCEB) were obtained based upon determination of dopa quinone with ultraviolet spectrophotometer.Furthermore,the effect of the extracts on monophenolase activity of tyrosinase and its inhibiting mechanism were examined by enzyme reaction kinetics method adopting L-tyrosine as substrate.Results show that these extracts can obviously inhibit activity of tyrosinase,of which NCEA displays the best inhibition effect as comparing with that of NCE and NCEB.The inhibition of NCEA on monophenolase activity of tyrosinase displays as reversible anti-competitive inhibition;while NCEB displays as reversible inhibition with mixed inhibition under low concentration condition,and competitive inhibition under high concentration condition.

Key words: additive for whitening cosmetics, extracts of water lily (Nymphaea candida Presl.) flower, tyrosinase, inhibition mechanism, kinetics

中图分类号: 

  • TQ658