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Autumn leaves, The Untapped Industrial Resource?

Very little use has been made of fallen leaves so far. They are either left on the ground, composted or burned resulting in full landfills and a growing carbon dioxide load. Autumn leaves derive their colour from orange and yellow carotenoids and red anthocyanins. In addition to pigments, autumn leaves contain many beneficial compounds, such as phenols, lignin, carbohydrates and protein. There is a fast-growing need for natural pigments in various industries around the world – for example, these natural pigments can even have health-promoting effects and use as nutraceuticals. (Click on title for full story.)