Tobacco cultivation leads to the accumulation of alkaloids in the soil and causes potential risks

作者：Peng Zhou, Qi Luo, Yuxiang Bai, Jintao Zhang, Meng Jia, Xuanquan Zhu, Dingchun Zi, Ge Wang, Yu Du, Na Wang · 发表于：Microchemical Journal · 年份：2024 · DOI：10.1016/j.microc.2024.112431 · 被引用次数：8 · 研究领域：Mycotoxins in Agriculture and Food、Plant Pathogens and Resistance、Botanical Research and Chemistry

• A developed alkaloid detection method exhibited good performance. • Accurate detection of 10 alkaloids from soil samples. • Alkaloids in the soil environment exhibit different risks. Nicotine, a typical environmental pollutant, is released in large quantities along with other alkaloids during tobacco cultivation. However, there is limited research regarding the quantity, distribution, and environmental impact of these alkaloids in tobacco-planted soils. To elucidate the distribution of tobacco alkaloids in the soil environment, this study developed a rapid, accurate, and efficient analytical method for 10 alkaloids, which was subsequently applied to analyze soil samples from tobacco plantations and assess the associated risks. The method demonstrated satisfactory results in terms of extraction rate (92.0–102.6 %), recovery (85.6–111.0 %), matrix effect (−10.4–12.8 %), limits of detection (LOD, 0.01–0.10 ng/g), limits of quantification (LOQ, 0.03–0.30 ng/g), intra-day repeatability (1.62–5.48 %), and inter-day repeatability (1.68–5.25 %). Moreover, the r values of the regression equations were greater than 0.9996. A total of 29 tobacco-planted soil samples from 12 townships in Kunming (Yunnan Province, China) were analyzed. The results showed that 10 alkaloids were present in the tobacco field, with nicotine identified as the most abundant compound, accounting for an average of 65.4 % of the total concentration. Risk quotients (RQs) were employed to evaluate the potential ec...