Used for the quantitative analysis of lutein in plant samples, this ELISA research kit enables researchers to measure lutein content accurately in leaves, extracts, and other botanical materials. It is widely applied in agricultural research to assess carotenoid levels in crops, supporting studies on nutritional quality, plant stress responses, and genetic modification aimed at enhancing antioxidant content. The kit is also utilized in food science to evaluate the biofortification of plant-based foods and in pharmaceutical research to standardize herbal products for lutein concentration. Its high specificity and sensitivity make it suitable for lab-scale studies in plant physiology and functional food development.