Tertiary Butyl Hydroquinone |
TBHQ is a highly effective preservative for unsaturated vegetable oils and many edible animal fats. It does not cause discoloration even in the presence of iron, and does not change flavor or odor of the material it is added to. It can be combined with other preservatives such as butylated hydroxyanisole (BHA). As food additive, its E number is E319, where it is used as a preservative. It is added to a wide range of foods, with highest limit (1000 mg/kg) permitted for frozen fish and fish products. Its primary advantage is enhancing storage life.
It is used industrially as a stabilizer to inhibit auto polymerization of organic peroxides. In perfumery, it is used as a fixative to lower the evaporation rate and improve stability. It is also added to varnishes, lacquers, resins, and oil field additives.
2-(1, 1-dimethylethyl)-1, 4-benzenediol
In high doses, it has some negative health effects on lab animals, such as precursors to stomach tumors and damage to DNA.[1] A number of studies have shown that prolonged exposure to TBHQ may induce carcinogenity.[2] Other studies, however, have shown inhibition against HCA-induced carcinogenesis (by depression of metabolic activation) for TBHQ and other phenolic antioxidants.[3]
In high doses, it has some negative health effects on lab animals, such as precursors to stomach tumors and damage to dna. [1] a number of studies have shown that prolonged exposure to tbhq may induce carcinogenity. [2] other studies, however, have shown inhibition against hca-induced carcinogenesis (by depression of metabolic activation) for tbhq and other phenolic antioxidants. [3]
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