التفاصيل البيبلوغرافية
| العنوان: |
Variations in polyamine conjugates in maize (Zea mays L.) seeds contaminated with aflatoxin B1: a dose-response relationship |
| المؤلفون: |
Saša Krstović, Ksenija Radotić, Vuk Maksimović, Dragana Bartolić, Rada Baošić, Jelena Maksimović, Mira Stanković |
| المصدر: |
Journal of the Science of Food and Agriculture |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
dose–responsemaize (Zea mays L.), Aflatoxin, Aflatoxin B1, 030309 nutrition & dietetics, Food Contamination, Food chemistry, Zea mays, 03 medical and health sciences, chemistry.chemical_compound, 0404 agricultural biotechnology, aflatoxin B1 (AFB1), Polyamines, polyamine conjugatesrisk assessment, Food science, total phenolic content (TPC), Carcinogen, 2. Zero hunger, 0303 health sciences, Nutrition and Dietetics, total antioxidant capacity (TAA), food and beverages, 04 agricultural and veterinary sciences, Biotic stress, 040401 food science, Spermidine, Dose–response relationship, chemistry, Seeds, Putrescine, Polyamine, Agronomy and Crop Science, Food Science, Biotechnology |
| الوصف: |
Background Cereal seeds, such as maize seeds, are frequently contaminated with aflatoxin B1 (AFB1), one of the most dangerous naturally occurring carcinogens. In plants, phenolamides are involved in biotic stress response. The data on variations of phenolamides in AFB1-containing seeds are limited. Results Five polyamine conjugates, including two spermidine and three putrescine conjugates, were tentatively identified in methanolic extracts, using HPLC-DAD-MS. The ratio of putrescine to spermidine conjugates changed with increasing AFB1 concentration in a logistic dose-response manner, with a ratio of below 1 up to a concentration of 51.51 μg kg-1 , and approximately 2.54 and 3 at higher concentrations of 177.4 and 308.13 μg kg-1 , respectively. The observed variations of the total antioxidant activity and the total phenolic content may support this biphasic behaviour of the seeds against AFB1 stress. Conclusions The obtained data are a contribution to the understanding of the roles of polyamine conjugates in seed defence to increasing AFB1 concentrations. According to our knowledge, this study reports for the first time the biphasic response of maize seeds to increasing AFB1 contamination level, comprising the induction of polyamine conjugate accumulation and variation in the ratio of conjugates. This dose-response relationship may provide useful information in the field of agricultural and food chemistry as an indicator of AFB1 contamination level and, hence, for selecting an appropriate seed quality. © 2020 Society of Chemical Industry. |
| تدمد: |
1097-0010 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b6551932167a4923408475b72a86796
https://pubmed.ncbi.nlm.nih.gov/32031245 |
| Rights: |
RESTRICTED |
| رقم الانضمام: |
edsair.doi.dedup.....4b6551932167a4923408475b72a86796 |
| قاعدة البيانات: |
OpenAIRE |