在坦桑尼亚小农系统中模拟玉米的 aflatoxins和fumonisins:考虑到各种风险因素,改善了真菌毒素模型
William Stafstrom1, Francis Ngure2,3, John Mshanga4
1School of Integrative Plant Science, Cornell University, Ithaca, NY, United States of America.
PloS one
|January 13, 2025
概括
在监管不足的食品系统中,监测玉米中的真菌毒素污染,特别是 aflatoxins和fumonisins,至关重要. 这项研究表明,使用风险因素和地理空间数据可以有效地模拟和跟踪小农农业中的这些污染物.
科学领域:
- 食品安全和毒理学
- 农业科学 农业科学
- 环境监测环境监测环境监测
背景情况:
- 毒素暴露,特别是来自玉米的暴露,在受监管不足的食品系统中构成重大健康风险.
- 需要有效的监测策略来识别和减轻脆弱人群中的真菌毒素爆发.
研究的目的:
- 探索监测系统的实用性,以识别玉米中的真菌毒素爆发.
- 在小农农业环境中,为阿弗拉托克辛和烟雾素的潜在缓解策略提供信息.
主要方法:
- 在坦桑尼亚的谷物磨坊进行了食品调查,以评估玉米中的真菌毒素污染 (亚黄毒素,烟雾毒素).
- 通过问卷收集农民关于收获前和收获后实践的数据.
- 利用地理空间环境数据 (NDVI,土壤质量) 和近红外光谱来进行风险建模.
主要成果:
- 人类消费的玉米中记录有高水平的 aflatoxins和fumonisins.
- 混合线性模型显示,调查数据,环境因素和光谱学解释了真菌毒素度的显著变化.
- 包含所有数据类型的模型解释了高达40%的真菌毒素水平变化.
结论:
- 低成本的风险因素可以有效地模拟玉米中的真菌毒素污染.
- 建立了一个在小农系统中实施真菌毒素监测的框架.
- 这种方法有助于识别菌毒素污染的高风险区域和时间.
更多相关视频
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
20.9K
09:21Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.
Published on: February 15, 2019
10.5K
相关概念视频
Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Sources of Food Contamination
Contamination of food by microbial agents and natural toxins poses significant risks to public health. These hazards can be introduced at various points across the food supply chain, ranging from environmental sources to processing and storage stages. Understanding these contamination pathways is critical for developing strategies to ensure food safety.Seafood is particularly vulnerable to contamination through both environmental exposure and microbial colonization. Toxins from harmful algal...
