l-gulonic acid

l-gu·lon·ic ac·id

(gū-lon'ik as'id),
Reduction product of glucuronic acid (-CHO → -CH2OH); oxidation product of l-gulose (-CHO → -COOH); a precursor (except in certain primates, guinea pigs, certain fishes, and the Indian fruit bat) of ascorbic acid via l-gulonolactone.
References in periodicals archive ?
Fish are unable to synthesize AA due to the lack of L-gulonolactone oxidase enzyme, which is necessary to convert L-gulonic acid to AA.