A Monoclonal Antibody-Based Enzyme-Linked Immunosorbent Assay for 5-Formyltetrahydrofolate Detection in Maize Kernels

文献类型： 外文期刊

第一作者： Yue, Huanfang

作者： Yue, Huanfang;Zhang, Wei;Cao, Zhen;Tan, Guiyu;Wang, Baomin;Yue, Huanfang;Liang, Qiuju;Zhang, Chunyi

作者机构：

关键词： 5-Formyltetrahydrofolate;Monoclonal antibody;ELISA;Maize kernels

期刊名称：FOOD ANALYTICAL METHODS （ 影响因子：3.366； 五年影响因子：3.07 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Maize is one of the most important staple food crops worldwide. 5-Formyltetrahydrofolate (5-F-THF), the most dominant and stable folate derivative in maize kernels, is important to human health and acts key roles in several metabolic pathways and biological processes. To assist investigating maize germplasm and subsequent breeding of maize varieties containing high levels of 5-F-THF, a cost-effective and high-throughput methodology for 5-F-THF detection is required. In the present study, monoclonal antibodies (mAbs) against 5-F-THF were raised in mice, followed by establishment of an indirect competitive enzyme-linked immunosorbent assay (icELISA). The icELISA showed an IC50 of 35.10 ng/mL and a working range of 7.90-263.89 ng/mL for 5-F-THF. The analytical recovery for 5-F-THF in the maize kernels with icELISA was 66-111 %, and that with liquid chromatography-mass spectrometry (LC-MS) was 57-114 %, indicating a good consistency between these two methods (Slope, 0.92; R (2), 0.98). We conclude that the sensitive and versatile icELISA can be used for high-throughput detection of 5-F-THF in maize kernels.

分类号： TS2

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