Did You Know...Ion Exchange and Adsorbent Resins Remove Bitter Compounds and Acids From Citrus Juice — Such as Grapefruit, Orange, and Lemon — Making Them Sweeter and More Delicious?

Bitterness stems largely from limonin and naringin compounds found in these fruits. Limonin is a bitter, white, crystalline substance found in citrus and other plants. The bitterness of the juice increases during extraction from the fruit and subsequent pasteurization with heat – a process known as “delayed bitterness,” which is a major problem of the citrus industry worldwide. 

Over 95% of the delayed bitterness can be removed by passing the juice through a column of debittering adsorbent resin. Weak base anion resins can effectively reduce excess acids and control the pH of the juice in low energy, more environmentally sustainable process.

Click here to learn more about adsorbent products for citrus juice debittering.