Used in plant biochemistry research to quantify anthocyanin reductase (ANR) enzyme levels, this ELISA kit enables accurate measurement of ANR activity in plant tissue extracts. It supports studies on flavonoid and proanthocyanidin (condensed tannin) biosynthesis pathways, particularly in understanding seed coat pigmentation and plant defense mechanisms. Researchers use it in genetic and metabolic studies to compare ANR expression across different plant species, developmental stages, or under environmental stress. The kit is valuable in breeding programs aiming to modify tannin content in crops for improved nutritional quality or astringency control in fruits and beverages.