Based on your criteria, we recommend the following products for your solution.
Tenox™ 21 is 20% tertiary-butylhydroquinone and citric acid in a medium of vegetable oil, propylene glycol and glycerides. It has high efficacy in highly unsaturated vegetable oils and edible animal fats. Tenox 21 is most commonly used in cosmetic and food applications.
Tenox™ 25 is 10% butylated hydroxytoluene, 10% tertiary-butylhydroquinone, and citric acid in a medium of vegetable oil, propylene glycol and glycerides. It is most commonly used in beverage, cosmetic, food, and animal feed applications. In particular, Tenox 25 has excellent performance in vegetable oil applications.