Used for the quantitative detection of Hydroperoxide Lyase (HPL) enzyme activity in plant tissue samples, this ELISA kit enables researchers to measure plant defense responses related to volatile organic compound production. It is widely applied in plant physiology and pathology studies to understand stress signaling, especially in response to herbivory or pathogen attack. The kit supports high-throughput analysis in agricultural research and breeding programs aiming to develop pest-resistant crop varieties. It is also useful in metabolic engineering of aroma and flavor compounds in fruits and herbs.