Why are wood resins in lemonade?

The glycerol ester of wood rosin is used as a stabilizer for flavoring oils in selected fruit-flavored beverages. This stabilizer weighs down the oils and keeps them in solution. The actual content of the glycerol ester of wood oil in our finished product is at no more than 100 parts per million. This concentration meets FDA (Food & Drug Administration) regulations. According to our flavor supplier, glycerol ester of wood rosin is one of the most natural of the approved FDA ingredients to perform as stabilizers in fruit-flavored beverages.