Used in plant biology research to quantify hydroxylated cinnamoyl transferase (HQT) enzyme levels, this ELISA kit enables accurate measurement of HQT activity in plant tissue extracts. It supports studies on phenolic compound biosynthesis, particularly chlorogenic acid production, which plays a role in plant defense and stress response. Researchers use this kit to investigate metabolic pathways in crops like coffee, potato, and artichoke, helping to improve plant resistance and nutritional quality. The assay is suitable for high-throughput analysis and provides a reliable tool for monitoring enzyme expression under different environmental or genetic conditions.