{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T11:33:19Z","timestamp":1791891199657,"version":"4.3.4"},"reference-count":19,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2007,6,20]],"date-time":"2007-06-20T00:00:00Z","timestamp":1182297600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Applied Toxicology"],"published-print":{"date-parts":[[2008,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The antioxidant and pro\u2010oxidant properties of ascorbic acid (vitamin C) and the water\u2010soluble analogue of <jats:italic>\u03b1<\/jats:italic>\u2010tocopherol (trolox) were compared. Trolox has advantages over <jats:italic>\u03b1<\/jats:italic>\u2010tocopherol, the latter being only lipid\u2010soluble due to the presence of a carboxyl group <jats:italic>in lieu<\/jats:italic> of a phytol chain which imparts trolox with water solubility. Trolox is used as a standard antioxidant in biochemical studies against which the antioxidant capacity of compounds is compared. Although ascorbic acid and tocopherols possess strong antioxidant properties, they might also exhibit pro\u2010oxidant properties in the presence of free transition metals. Thus, reactions detailed in this study were performed in the presence of Cr(VI) in an effort to investigate the potential of ascorbic acid and trolox to generate hydroxyl radicals in a Fenton\u2010like reaction. Results obtained were derived from reactions containing the same concentration of ascorbic acid and trolox under identical experimental conditions. Hydroxyl radical formation was observed in the reaction of Cr(VI) with ascorbic acid resulting from ascorbic acid auto\u2010oxidation and H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> formation. Hydroxyl radical formation was only detected in the reaction mixture containing Cr(VI) and trolox following the addition of H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>. Copyright \u00a9 2007 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/jat.1264","type":"journal-article","created":{"date-parts":[[2007,6,20]],"date-time":"2007-06-20T08:21:04Z","timestamp":1182327664000},"page":"183-188","source":"Crossref","is-referenced-by-count":51,"title":["The antioxidant and pro\u2010oxidant activity of vitamin C and trolox <i>in vitro<\/i>: a comparative study"],"prefix":"10.1002","volume":"28","author":[{"given":"Borut","family":"Polj\u0161ak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Raspor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,6,20]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0014-5793(95)01481-0"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.bmb.a072625"},{"key":"e_1_2_1_4_1","volume-title":"Free Radicals in Biology and Medicine","author":"Halliwell B","year":"1999"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1749-6632.1998.tb09921.x"},{"key":"e_1_2_1_6_1","first-page":"237","article-title":"The generation of DNA single\u2010strand breaks during the reduction of chromate by ascorbic acid and\/or glutathione in vitro","volume":"102","author":"Kortenkamp A","year":"1994","journal-title":"Environ. 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