Explore Roche Antioxidant Synergisms Working with antioxidants for use as food preservatives, Roche scientists have determined that certain antioxidant combinations exhibit significantly greater activity than single antioxidant additives alone. This synergistic activity suggests that there are combinations that can play an important part in the long term preservation of a wide range of commercial chemicals that are subject to peroxidation during storage, handling and use...at modest cost, due to their low concentration and high activity. Moreover, most of these antioxidants are FDA approved. Among such chemicals which do need special antioxidants are petrochemicals, plastics, various polymers, rubber, paints, lanolins, fats, oils, soaps, cosmetics, drugs, Vitamin A, citrus oil, and many other chemicals with oxidizable double bonds. Roche antioxidants presently available in commercial quantities include:
Ascorbic acid Ascorbyl palmitate dl-alpha-tocopherol dl-gamma-tocopherol NDGA (hordihydroguaiaretic Acid) BHA
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NONE NDGA dl-y-tocopherol
BHA BHT AP
(ASCORBYL PALMITATE)
10 20 30 40 Days to reach peroxide values 50 meq.
NONE NDGA dl-y-tocopherol BHA BHT
AP AP
AP
AP
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For more information or samples write Commercial Development Dept., Roche Chemical Division, Hoffmann-La Roche Inc., Nutley, N.J. 07110, or call J. W. Crossin at (201) 235-2474.
ROCHE
Days to reach peroxide values 50 meq. ( Data developed in thin layer experiments)
Commercial Development Dept. Roche Chemical Division, Hoffmann-La Roche Inc. Nutley, N.J. 07110.
Dec. 3, 1973C&EN 19
