Best of all, it can be easily manufactured with readily available components. Now it's commercially feasible to manufacture these compounds, thanks to techniques developed by ARS and Japanese scientists. ARS scientists discovered that citrus fruits produce the compounds to counteract bittering chemicals contained in the fruit. But until now, extracting limonoid glucosides from orange and other citrus pulp required a time-consuming enzyme treatment that was impractical on a large scale. Recently, ARS and Japanese scientists developed a method that removes up to 100 percent of the compounds without pretreatment.
Citrus waste is passed through a chamber containing an absorbent that catches the compounds.
A solvent then extracts high concentrations of limonoid glucosides.