Fatty acid esters of ascorbic acid, Ascorbyl palmitate, Ascorbyl stearate.
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E304, ascorbic acid ester comprising ascorbic acid and palmitic acid, is prepared synthetically and, like E300, it is used as an antioxidant, a colour preservative and as a vitamin supplement but with the added advantage of being fat-soluble at high temperatures.

Because of its antioxidant synergy with the alpha-tocopherols E306 and E307 it is likely to be found in combination with these.

It can be found in baby formula, chicken stock cubes, pork pies, sausages, scotch eggs and tinned baby food. The vitamin C component of moisterisers, shampoo etc.

Vitamin C, essential for growth, healthy teeth, gums, bones, skin and blood vessels and aiding the absorption of iron, is found naturally in many fresh fruits and vegetables.