ANSWERS: 2
  • No, it's made from corn, most often.
    • DancesWithWolves
      Thanks for your comment :)
  • no. "Sodium erythorbate (C6H7NaO6) is a food additive used predominantly in meats, poultry, and soft drinks. Chemically, it is the sodium salt of erythorbic acid. " "Erythorbic acid is a stereoisomer of ascorbic acid. It is synthesized by a reaction between methyl 2-keto-D-gluconate and sodium methoxide. It can also be synthesized from sucrose or by strains of Penicillium that have been selected for this feature."
    • bostjan the adequate 🥉
      The first method sounds like an expensive way to make it. I'd make the erythorbic acid from dextrose by fermenting it with cheap bacteria cultures into 2-keto-D-gluconic acid, then dissolve it in methanol (wood alcohol) and esterify it with sulfuric acid. Might not give as high a yield, but it could be done really cheap. The second method you listed is similar to how I've seen it done, but I've never seen it done with penicillium, although I'm pretty sure that'd work. The fructose of the sucrose would have to be converted to glucose first if you didn't want to end up with a bunch of side products, though - but for industrial grade applications, it probably doesn't really matter.
    • DancesWithWolves
      Thanks for your comment :)

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