Title: Effect of antioxidants, individually and in combination, on stability of carotene in cottonseed oil
Abstract:By an accelerated test, l-ascorbyl palmitate, alphatocopherol, hydroquinone, and phospholipids from cottonseed and soybean oil have been evaluated singly and in combinations, for their antioxidant eff...By an accelerated test, l-ascorbyl palmitate, alphatocopherol, hydroquinone, and phospholipids from cottonseed and soybean oil have been evaluated singly and in combinations, for their antioxidant effect on carotene in mineral oil and cottonseed oil solutions. Their effects in retarding the formation of peroxides in the refined cottonseed oil were also determined, and similar studies were made on cottonseed oil after the addition of 1.2 mg. of carotene per gram of oil. In the refined cottonseed oil the formation of peroxides occurred concurrently with the destruction of carotene and was greatly accelerated as the carotene disappeared. In mineral oil solutions, no peroxides were found until after the carotene had become completely decolorized. Although alpha-tocopherol was very effective in stabilizing carotene when added to mineral oil solutions neither the naturally present nor added tocopherol was effective in a more unstable solvent such as refined cottonseed oil. To make the tocopherol effective in such a solvent it is necessary first to stabilize the solvent. When the combination of phospholipid and hydroquinone was added to the refined cottonseed oil, the oil was stabilized and a very marked increase in carotene stability was obtained. While the combinations AH, APH, TAH and TAPH did not stabilize the carotene during the early part of the storage tests, they did become effective after about 20 per cent of the carotene had been destroyed and were as effective as PH and TPH when measured at the 50 per cent point. The reason for this ineffectiveness during the preliminary period of storage is not apparent.Read More
Publication Year: 1944
Publication Date: 1944-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 14
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