{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T21:59:45Z","timestamp":1759960785739},"reference-count":10,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"3594","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[1963,11,15]]},"abstract":"<jats:p>\n            Alfalfa lipids were treated with\n            <jats:italic>p<\/jats:italic>\n            -toluenesulfonic acid in benzene under reflux; after saponification, chromatography of the unsaponifiable portion yielded a carotenoid having a single absorption maximum at 460 m\u03bc in ethanol and hexane. Its properties correspond to those of the dehydration product of lutein, 3\u2032-hydroxy-3,4-dehydro-\u03b2-carotene, for which the name \"anhydrolutein\" is proposed. Vitamin A depleted chicks convert this pigment to vitamin A\n            <jats:sub>2<\/jats:sub>\n            , as shown by the high ratio of absorbancies at 693 and 620 m\u03bc in a mixture of CHCl\n            <jats:sub>3<\/jats:sub>\n            and SbCl\n            <jats:sub>3<\/jats:sub>\n            and the absorption maximum at 350 m\u03bc in hexane exhibited by the liver lipids. The possible role of this pigment in the biogenesis of vitamin A\n            <jats:sub>2<\/jats:sub>\n            is discussed.\n          <\/jats:p>","DOI":"10.1126\/science.142.3594.969","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T09:05:35Z","timestamp":1160039135000},"page":"969-971","source":"Crossref","is-referenced-by-count":31,"title":["Provitamin A\n            <sub>2<\/sub>\n            from Lutein"],"prefix":"10.1126","volume":"142","author":[{"given":"P.","family":"Budowski","sequence":"first","affiliation":[{"name":"National and University Institute of Agriculture, Rehovot, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I.","family":"Ascarelli","sequence":"additional","affiliation":[{"name":"National and University Institute of Agriculture, Rehovot, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeana","family":"Gross","sequence":"additional","affiliation":[{"name":"National and University Institute of Agriculture, Rehovot, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I.","family":"Nir","sequence":"additional","affiliation":[{"name":"National and University Institute of Agriculture, Rehovot, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","first-page":"318","DOI":"10.1042\/bj0330318","volume":"33","year":"1939","unstructured":"Morton, R. 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J."}],"container-title":["Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.science.org\/doi\/pdf\/10.1126\/science.142.3594.969","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,1,11]],"date-time":"2024-01-11T02:23:19Z","timestamp":1704939799000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.science.org\/doi\/10.1126\/science.142.3594.969"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1963,11,15]]},"references-count":10,"journal-issue":{"issue":"3594","published-print":{"date-parts":[[1963,11,15]]}},"alternative-id":["10.1126\/science.142.3594.969"],"URL":"https:\/\/doi.org\/10.1126\/science.142.3594.969","relation":{},"ISSN":["0036-8075","1095-9203"],"issn-type":[{"value":"0036-8075","type":"print"},{"value":"1095-9203","type":"electronic"}],"subject":[],"published":{"date-parts":[[1963,11,15]]}}}