Purar Božana, Djalovic Ivica, Bekavac Goran, Grahovac Nada, Krstović Saša, Latković Dragana, Janić Hajnal Elizabet, Živančev Dragan
Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Maxim Gorki 30, 21000 Novi Sad, Serbia.
Faculty of Agriculture, University of Novi Sad, Sq. D. Obradovic 8, 21000 Novi Sad, Serbia.
Foods. 2022 Sep 16;11(18):2877. doi: 10.3390/foods11182877.
Mycotoxins in maize represent a great threat to human health. For this reason, novel technics such as ozone treatment are used to reduce the content of maize mycotoxins. However, there is little knowledge about the effect of ozone treatment on maize quality parameters. This study investigated the changes in and mycotoxins and the changes in fatty acids during the ozone treatment of maize samples. Sixteen maize hybrids were visually tested for the naturally occurring ear rot severity and treated with three different concentrations of ozone (40, 70, and 85 mg/L). Mycotoxin content in maize samples was determined using a high-performance liquid chromatography (HPLC) system, whereas dominant fatty acids were determined using gas chromatography coupled with a flame ionization detector (GC-FID). Ozone treatments could be successfully applied to reduce the content of mycotoxins in maize below the detection limit. Ozone treatments increased the content of monounsaturated fatty acids (MUFAs) and decreased the content of polyunsaturated fatty acids (PUFAs), i.e., linoleic acid (36.7% in relation to the lowest applied ozone concentration), which negatively affected the nutritional value of maize.
玉米中的霉菌毒素对人类健康构成巨大威胁。因此，人们采用臭氧处理等新技术来降低玉米中霉菌毒素的含量。然而，关于臭氧处理对玉米品质参数的影响，人们了解甚少。本研究调查了玉米样品在臭氧处理过程中霉菌毒素和脂肪酸的变化。对16个玉米杂交种进行了自然发生的穗腐病严重程度的目视检测，并用三种不同浓度的臭氧（40、70和85毫克/升）进行处理。使用高效液相色谱（HPLC）系统测定玉米样品中的霉菌毒素含量，而使用气相色谱-火焰离子化检测器（GC-FID）测定主要脂肪酸。臭氧处理能够成功应用于将玉米中霉菌毒素的含量降低至检测限以下。臭氧处理增加了单不饱和脂肪酸（MUFAs）的含量，降低了多不饱和脂肪酸（PUFAs）的含量，即亚油酸（相对于最低施用臭氧浓度降低了36.7%），这对玉米的营养价值产生了负面影响。
