Octyl gallate

The commonest synthetic antioxidants are butylated hydroxyanisole (BHA) and butylated hydroxy toluene (BHT). Other synthetic antioxidants are w-propyl gallate and n-octyl gallate. Any substance that can act as a radical trap will have antioxidant properties. There are strict rules governing the use of antioxidants in foods. Only those substances that are on the permitted list can be used. 

Annex III lays down the conditions of use for permitted preservatives and antioxidants, with lists of foods and maximum levels in each case. Part A lists the sorbates, benzoates and p-hydroxybenzoates, E 200-E 219 part B lists sulphur dioxide and the sulphites, E 220-E 228 part C lists other preservatives with their uses, including nisin, dimethyl dicarbonate and substances allowed for surface treatment of certain fruits, E 249 potassium nitrite, E 250 sodium nitrite, E 251 sodium nitrate and E 252 potassium nitrate, E 280-E 283 propionic acid and the propionates part D lists the antioxidants E 320 butylated hydroxyanisole (BHA), E 321 butylated hydroxytoluene (BHT), E 310 propyl gallate, E 311 octyl gallate, E 312 dodecyl gallate, E 315 eiythorbic acid and E 316 sodium erythorbate. 

Figure 4.16 Phase diagram of poly(isoprene-Z>-2-vinylpyridine) with octyl gallate, indicating the transition between different morphologies with octyl gallate content and temperature (D, disordered S, spherical H, hexagonal L, lamellar L2, lamellar with reduced spacing I, intermediate state). Reprinted ftomBondzic et al. (2004). Copyright2004 American Chemical Society.

Phenols and aliphatic alcohols abacavir, APAP, almokalant, carvedilol, chloramphenicol, epirubicin, l -OH-estragole, 5-OH-rofecoxib, lorazepam, menthol, 4-methylumbelliferone, 1-naphthol (low), 4-nitrophenol, octyl-gallate, R-oxazepam, propranolol, temazepam, ZDV... 

Antioxidants form only a minor group of cosmetic allergens. Examples are propyl gallate, octyl gallate,66 which may cross-react with other gallates and are also used as food additives, and t-butyl hydroquinone, a well-known allergen in the United Kingdom but not in continental Europe.2... 

Octyl gallate Antioxidant for use in margarine and peanut butter... 

The commonest synthetic antioxidants are butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT). Other synthetic antioxidants are n-propyl gallate and n-octyl gallate. 

Scheme 9 Poly(2,5-pyridine diyl) (PPY), methanesulfonic acid (MSA), octyl gallate (OG), and the possible schemes of interaction [233]...

Propyl Gallate Octyl Gallate Dodecyl Gallate... 

Dodecyl gallate ethyl gallate octyl gallate. 

Safety the WHO has established a temporary estimated acceptable daily intake for octyl gallate at up to 0.1 mg/kg... 

Xenobiotic food additives, drugs, and biologically active endogenous compounds can interact and affect body biochemistry. For example, dopamine sulfotransferase activity is strongly inhibited by the colorant tartrazine and flavorant vanillin, and vanillin, erythrosine B, and octyl gallate inhibit the sulfation of 17 alpha-ethinylestradiol, a xenobiotic steroid J75l... 

Simple catechols octyl gallate, propyl gallate... 

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