Camu-camu is a native plant of the Peruvian Amazon. It is noted for its high concentration of ascorbic acid. however this feature varies widely from one location to another due to genetic and environmental factors. In order to determine the relationship between mineral nutrients and the concentration of ascorbic acid in camu-camu plants. https://spencertifieders.shop/product-category/recorders-reel-to-reel-tape-players/