At the request of the Codex Committee on Food Additives at its fortieth session (FAO/WHO, 2008), the Committee evaluated octenyl succinic acid (OSA) modified gum arabic, which it had not evaluated previously. OSA modified gum arabic (gum arabic hydrogen octenylbutanedioate, Chemical Abstracts Service No. 455885-22-0) is produced by controlled esterification of the polysaccharide in gum arabic with octenyl succinic acid anhydride, analogous to the production of starch sodium octenyl succinate (OSA modified food starch).
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