食品科学 ›› 2021, Vol. 42 ›› Issue (20): 38-44.doi: 10.7506/spkx1002-6630-20200728-352

• 生物工程 • 上一篇    下一篇

桃主要过敏原蛋白Pru p 3的分离纯化及质谱鉴定

康文瀚,张九凯,邢冉冉,孙秀兰,陈颖   

  1. (1.中国检验检疫科学研究院,北京 100176;2.江南大学食品学院,江苏 无锡 214122)
  • 出版日期:2021-10-25 发布日期:2021-11-12
  • 基金资助:
    中国检验检疫科学研究院基本科研业务费项目(2020JK043)

Isolation, Purification and Mass Spectrometry Identification of the Major Peach Allergen Pru p 3

KANG Wenhan, ZHANG Jiukai, XING Ranran, SUN Xiulan, CHEN Ying   

  1. (1. Chinese Academy of Inspection and Quarantine, Beijing 100176, China; 2. College of Food Science and Engineering, Jiangnan University, Wuxi 214122, China)
  • Online:2021-10-25 Published:2021-11-12

摘要: 选取水蜜桃、油桃、蟠桃及黄桃4 种桃为原料,以ZipTipC18微量层析柱为纯化工具快速分离纯化果皮及果肉中的桃过敏原蛋白Pru p 3,并利用液相色谱-串联质谱对其进行鉴定。结果表明,该纯化方法获得的产物为桃过敏原蛋白Pru p 3,蛋白纯度为95%。该方法为桃过敏原蛋白Pru p 3的研究提供了技术支撑。

关键词: 桃;过敏原;脂质转移蛋白;纯化;质谱

Abstract: Lipid transfer protein (LTP, Pru p 3) is the major allergen protein of peach (Prunus persica L. Batsch). In this study, Pru p 3 was purified from the peel and pulp of honey peach, nectarine, flat peach, and yellow-fleshed peach using a microchromatographic column, ZipTipC18, and identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The results showed that Pru p 3 with a purity of 95% was obtained and confirmed. The purification method can provide technical support for further studies of peach Pru p 3.

Key words: peach; allergens; lipid transfer protein; purification; mass spectrometry

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