在α-乳蛋白上选人类IgE表皮质,并开发用于食品矩阵中增强过敏原检测的特定检测工具
Yu Qiu1,2,3, Mao Ye1,2,3, Hongkai Tan1,2,3
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
Journal of agricultural and food chemistry
|February 10, 2025
概括
一种新的酶相关免疫吸收试验 (ELISA) 准确检测加工食品中的α-乳蛋白 (ALA). 这种敏感的方法有助于识别未申报的ALA,提高了牛奶过敏患者的食品安全.
科学领域:
- 食品科学 食品科学 食品科学
- 免疫学 免疫学 免疫学
- 分析化学 分析化学
背景情况:
- 食品蛋白质在加工过程中发生变化,但关键的过敏原表位通常保持完整.
- 准确检测食物过敏原,如α-乳蛋白 (ALA) 对于管理食物过敏至关重要.
研究的目的:
- 开发和验证一种敏感的三明治酶相关免疫吸收试验 (Epi-mAbs-sELISA) 用于量化α-乳蛋白 (ALA).
- 通过检测ALA残留物来评估食品的过敏性.
主要方法:
- 开发了一种新的三明治酶链接免疫吸收试验 (Epi-mAbs-sELISA),利用IgE线性表位.
- 为增强抗体亲和力和定量检测优化了测试方法.
- 通过使用各种食物矩阵验证了测试的性能.
主要成果:
- 优化的Epi-mAbs-sELISA显示了广泛的线性检测范围 (30.52 ng/mL至125 μg/mL) 和低的检测极限 (1.122 ng/mL).
- 在不同类型的食品中实现了卓越的精度 (RSD<10%) 和高回收率 (81.9%111.9%).
- 该试验成功检测了加工食品样本中的未申报的ALA,其性能优于商业ELISA套件.
结论:
- 埃皮-mAbs-sELISA是一种高度敏感和精确的方法,用于检测食品中的ALA.
- 这种测试可以有效地识别未申报的ALA,提高对牛奶过敏消费者的安全性.
- 该方法在与现有的商业ELISA检测过敏原检测套件相比,提供了更高的性能.
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