Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
Bioresour Technol. 2021 Sep;336:125330. doi: 10.1016/j.biortech.2021.125330. Epub 2021 May 27.
Enzymatic activities play an important role in the biological composting processing of agricultural wastes. This paper explores the effect of sulfamethoxazole (SMX) (Control, 25 mg/kg, 50 mg/kg, and 100 mg/kg) on the enzymatic activities of cellulase, protease, urease, and arylsulfatase. Compost samples were taken at three different intervals for analysis (day 0, day 25, and day 45). The findings revealed that at the start of the composting process, a strongly negative effect on enzymatic behavior was observed, and this response was significantly dependent on SMX concentrations (p < 0.05). The inhibition was consistent across all treatments. According to the results, the negative impact of SMX on community structure can result in selection pressure. Furthermore, all of the treatments had drastically improved enzymatic activity by the end of the composting process (day 45). This effect was presumably caused by the deterioration of SMX and a substantial stress reduction.
酶活性在农业废弃物的生物堆肥处理中起着重要作用。本文探讨了磺胺甲恶唑（SMX）（对照、25mg/kg、50mg/kg 和 100mg/kg）对纤维素酶、蛋白酶、脲酶和芳基硫酸酯酶的酶活性的影响。在三个不同的时间间隔（0 天、25 天和 45 天）采集堆肥样品进行分析。结果表明，在堆肥过程的开始阶段，观察到对酶活性的强烈负面影响，并且这种反应明显依赖于 SMX 浓度（p<0.05）。所有处理都表现出一致的抑制作用。根据结果，SMX 对群落结构的负面影响可能导致选择压力。此外，所有处理在堆肥过程结束时（45 天）都显著提高了酶活性。这种效应可能是由于 SMX 的恶化和大量应激的减少所致。
