Used in research settings to detect and quantify plant β-carotene ketolase (BF) enzyme levels in plant samples. This ELISA kit enables scientists to study the expression and activity of the BF enzyme, which plays a key role in the biosynthesis of astaxanthin and other keto-carotenoids in genetically modified plants or microorganisms. It is particularly useful in metabolic engineering and plant biotechnology to evaluate the efficiency of carotenoid pathway modifications. The assay supports high-throughput analysis, making it valuable for screening transgenic plant lines or optimizing culture conditions in biofortification and nutraceutical development.