Used in environmental and agricultural research to quantify polyphenol oxidase (PPO) enzyme activity in soil samples. This kit helps assess soil health and microbial activity by measuring PPO levels, which are involved in the decomposition of organic matter and humus formation. It is valuable for studying soil fertility, carbon cycling, and the impact of land management practices such as farming, deforestation, or reforestation. The ELISA format allows for sensitive and specific detection, making it suitable for high-throughput analysis in research laboratories and environmental monitoring programs.