{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T21:09:17Z","timestamp":1790802557110,"version":"4.1.0"},"reference-count":35,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,11,8]],"date-time":"2022-11-08T00:00:00Z","timestamp":1667865600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"DGAPA-PAPIIT","award":["IN114122"],"award-info":[{"award-number":["IN114122"]}]},{"name":"DGAPA-PAPIIT","award":["319818"],"award-info":[{"award-number":["319818"]}]},{"DOI":"10.13039\/501100003141","name":"CONACYT","doi-asserted-by":"publisher","award":["IN114122"],"award-info":[{"award-number":["IN114122"]}],"id":[{"id":"10.13039\/501100003141","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003141","name":"CONACYT","doi-asserted-by":"publisher","award":["319818"],"award-info":[{"award-number":["319818"]}],"id":[{"id":"10.13039\/501100003141","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Spanish Ministry of Science and Innovation","award":["IN114122"],"award-info":[{"award-number":["IN114122"]}]},{"name":"Spanish Ministry of Science and Innovation","award":["319818"],"award-info":[{"award-number":["319818"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Life"],"abstract":"<jats:p>Researchers have suggested that the condensation of low-molecular-weight aldehydes under basic conditions (e.g., pH &gt; 11) is the prebiotic reaction responsible for the abiotic formation of carbohydrates. It has also been suggested that surface hydrothermal systems were ubiquitous during the early Archean period. Therefore, the catalysis of prebiotic carbohydrate synthesis by metallic oxide minerals under acidic conditions in these environments seems considerably more probable than the more widely hypothesized reaction routes. This study investigates the stability of DL-glyceraldehyde and its reaction products under the simulated conditions of an Archean surface hydrothermal system. The Hveradalur geothermal area in Iceland was selected as an analog of such a system. HPLC-ESIMS, UV\u2013Vis spectroscopy, Raman spectroscopy and XPS spectroscopy were used to analyze the reaction products. In hot (323 K) and acidic (pH 2) solutions under the presence of suspended iron(III) oxide hydroxide powder, DL-glyceraldehyde readily decomposes into low-molecular-weight compounds and transforms into sugar-like molecules via condensation reactions.<\/jats:p>","DOI":"10.3390\/life12111818","type":"journal-article","created":{"date-parts":[[2022,11,8]],"date-time":"2022-11-08T12:11:00Z","timestamp":1667909460000},"page":"1818","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Stability of DL-Glyceraldehyde under Simulated Hydrothermal Conditions: Synthesis of Sugar-like Compounds in an Iron(III)-Oxide-Hydroxide-Rich Environment under Acidic Conditions"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2971-9310","authenticated-orcid":false,"given":"Claudio Alejandro","family":"Fuentes-Carre\u00f3n","sequence":"first","affiliation":[{"name":"Posgrado en Ciencias de la Tierra, Instituto de Ciencias Nucleares, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Mexico City 04510, Mexico"},{"name":"Instituto de Ciencias Nucleares, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Mexico City 04510, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7907-0751","authenticated-orcid":false,"given":"Jorge Armando","family":"Cruz-Casta\u00f1eda","sequence":"additional","affiliation":[{"name":"Instituto de Ciencias Nucleares, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Mexico City 04510, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4709-4676","authenticated-orcid":false,"given":"Eva","family":"Mateo-Mart\u00ed","sequence":"additional","affiliation":[{"name":"Centro de Astrobiolog\u00eda (CAB) CSIC-INTA, Ctra. de Ajalvir km 4, 28850 Torrej\u00f3n de Ardoz, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3872-1228","authenticated-orcid":false,"given":"Alicia","family":"Negr\u00f3n-Mendoza","sequence":"additional","affiliation":[{"name":"Instituto de Ciencias Nucleares, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Mexico City 04510, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,8]]},"reference":[{"key":"ref_1","unstructured":"Yamagashi, A., Kakegawa, T., and Usui, T. 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