a Department of Food Science , University of Parma , Parco Area delle Scienze 17/A , 43124 Parma , Italy.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2013;30(9):1606-13. doi: 10.1080/19440049.2013.802839. Epub 2013 Jul 2.
Fumonisin derivatives obtained by esterification of fumonisin B₁ (FB₁) with palmitic, oleic and linoleic fatty acids have been recently described, but never reported in raw maize so far. In this study, the presence of oleoyl-EFB₁ (EFB₁OA) and linoleoyl-EFB₁ (EFB₁LA) in raw maize is reported by means of a suitable LC-ESI-MS/MS method. In addition, the production of EFB₁ derivatives by three Fusarium verticillioides strains is described on malt extract-based media and on corn meal-based growth media. EFB₁OA and EFB₁LA were produced by all considered strains in corn meal medium, with EFB₁LA > EFB₁OA. On the contrary, EFB₁OA and EFB₁LA were never observed in Fusarium cultures grown on a malt extract medium, suggesting that the esterification of FB₁ can occur only in a complex matrix such as maize.
最近已经描述了通过棕榈酸、油酸和亚油酸脂肪酸与伏马菌素 B1（FB1）酯化获得的伏马菌素衍生物，但迄今为止从未在生玉米中报道过。在这项研究中，通过合适的 LC-ESI-MS/MS 方法报告了生玉米中存在油酰基-EFB1（EFB1OA）和亚油酰基-EFB1（EFB1LA）。此外，还描述了三种尖孢镰刀菌菌株在麦芽提取物基础培养基和玉米粉生长培养基上产生 EFB1 衍生物的情况。在玉米粉培养基中，所有考虑的菌株都产生了 EFB1OA 和 EFB1LA，EFB1LA>EFB1OA。相反，在麦芽提取物培养基上生长的镰刀菌培养物中从未观察到 EFB1OA 和 EFB1LA，这表明 FB1 的酯化只能在玉米等复杂基质中发生。
