RT Journal Article T1 Comparative Study of the Performance of Two Different Luciferases for the Analysis of Fumonisin B1 in Wheat Samples A1 Luque Uría, Álvaro A1 Peltomaa, Riikka A1 Navarro Duro, Marina A1 Fikacek, Sabrina A1 Head, Trajen A1 Deo, Sapna K. A1 Daunert, Sylvia A1 Benito Peña, María Elena A1 Moreno Bondi, María Cruz AB The development of two different immunoassays for the determination of fumonisin B1 in wheat samples is reported. A previously described mimopeptide for fumonisin B1 (FB1) was used to produce fusion proteins in combination with two different luciferases: Gaussia luciferase (GLuc) and NanoLuc luciferase (NLuc). The production, expression and the development of two immunoassays based on these fusion proteins (A2- GLuc and A2-NLuc) is detailed. The assay showing the best performance, A2-NLuc, with a limit of detection of 0.61 ngmL 1 and a dynamic range from 1.9 to 95 ngmL 1 , was employed for the analysis of spiked wheat samples, a reference matrix material, as well as naturally contaminated wheat samples. The recoveries obtained in the spiked samples were acceptable, between 81.5 and 109%, with relative standard deviations lower than 14%. The analysis of naturally contaminated wheat was validated by a liquid chromatography coupled to tandem mass detection method. PB Wiley-VCH SN 2629-2742 YR 2022 FD 2022-02-17 LK https://hdl.handle.net/20.500.14352/71361 UL https://hdl.handle.net/20.500.14352/71361 LA eng NO CRUE-CSIC (Acuerdos Transformativos 2022) NO Ministerio de Ciencia e Innovación (MICINN) DS Docta Complutense RD 20 jul 2024