气候对玉米中亚黄毒素污染的影响
Queenta Ngum Nji1, Olubukola Oluranti Babalola1, Mulunda Mwanza1,2
1Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa.
Toxicology reports
|September 12, 2024
概括
南非玉米中阿弗拉托克辛污染是一个重大问题,近20%的样本超过安全限值. 气候变化,特别是降雨量减少,加剧了这一问题,影响了食品安全和经济.
科学领域:
- 农业科学 农业科学
- 食品安全 食品安全
- 环境科学 环境科学
背景情况:
- 非洲毒素经常污染玉米,造成健康和经济风险,特别是随着气候变化.
- 南非是主要的玉米出口国,需要了解其农业价值链中的非洲毒素污染,以评估消费者暴露.
- 气候变化的影响,如降雨模式的改变,被怀疑会影响亚拉托克辛的流行.
研究的目的:
- 为了量化南非商业玉米中的 aflatoxin水平.
- 为了确定农业气候地区和收获季节的最高污染.
- 调查环境因素与亚拉托克辛污染之间的相关性.
主要方法:
- 使用高性能液态染色学 (HPLC) 来量化青毒素.
- 在五个收获季节 (2017-2021) 期间,在六个农业气候区域收集了1028个玉米样本.
- 进行了统计分析,以确定平均度和影响因素.
主要成果:
- 分析的玉米样本中有19.94%被非洲毒素污染.
- 受污染的样本中平均总亚黄素度为64.17ppb,超过了南非对动物料的20ppb监管限制.
- 2018年和西北农业气候区域显示了最高的平均总亚黄素水平.
- 平均降雨量和非洲毒素污染水平之间观察到显著的负相关性.
结论:
- 南非玉米中阿弗拉托克辛污染很普遍,超过监管标准,对动物和潜在的人类健康构成风险.
- 气候变化,特别是降雨量减少,是玉米中亚黄毒素污染增加的重要驱动因素.
- 针对性干预和监测在脆弱的地区和季节至关重要,以减轻玉米价值链中的偏毒素风险.
更多相关视频
10:01Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays
Published on: April 23, 2012
18.1K
09:44RNAi-mediated Control of Aflatoxins in Peanut: Method to Analyze Mycotoxin Production and Transgene Expression in the Peanut/Aspergillus Pathosystem
Published on: December 21, 2015
21.0K
相关概念视频
01:16What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K
01:57Adaptations that Reduce Water Loss
25.2K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.2K