{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,11]],"date-time":"2025-12-11T20:59:49Z","timestamp":1765486789206,"version":"build-2065373602"},"reference-count":63,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,8,19]],"date-time":"2022-08-19T00:00:00Z","timestamp":1660867200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Applied Molecular Biosciences Unit\u2014UCIBIO","award":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"],"award-info":[{"award-number":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"]}]},{"name":"Associate Laboratory for Green Chemistry\u2014LAQV","award":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"],"award-info":[{"award-number":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"]}]},{"name":"FCT\/MCTES","award":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"],"award-info":[{"award-number":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"]}]},{"name":"COPAM\u2014Companhia Portuguesa de Amidos","award":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"],"award-info":[{"award-number":["UIDP\/04378\/2020","UIDB\/ 04378\/2020","UIDB\/50006\/2020","UIDP\/50006\/2020","PD\/BDE\/113543\/2015"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>The increasing demand for natural products has led to biotechnological vanillin production, which requires the recovery of vanillin (and vanillyl alcohol at trace concentrations, as in botanical vanillin) from the bioconversion broth, free from potential contaminants: the substrate and metabolites of bioconversion. This work discusses the recovery and fractionation of bio-vanillin, from a bioconversion broth, by pervaporation and by vacuum distillation, coupled with fractionated condensation. The objective was to recover vanillin free of potential contaminants, with maximised fluxes and selectivity for vanillin against water and minimised energy consumption per mass of vanillin recovered. In vacuum distillation fractionated condensation, adding several consecutive water pulses to the feed increased the percentage of recovered vanillin. In pervaporation-fractionated condensation and vacuum distillation-fractionated condensation processes, it was possible to recover vanillin and traces of vanillyl alcohol without the presence of potential contaminants. Vacuum distillation\u2013experiments presented higher vanillin fluxes than pervaporation fractionated condensation experiments, 2.7 \u00b1 0.1 g\u00b7m\u22122 h\u22121 and 1.19 \u00b1 0.01 g\u00b7m\u22122 h\u22121, respectively. However, pervaporation fractionated condensation assures a selectivity of vanillin against water of 4.5 on the pervaporation step (acting as a preconcentration step) and vacuum distillation fractionated condensation requires a higher energy consumption per mass of vanillin recovered when compared with pervaporation\u2013 fractionated condensation, 2727 KWh kgVAN\u22121 at 85 \u00b0C and 1361 KWh kgVAN\u22121 at 75 \u00b0C, respectively.<\/jats:p>","DOI":"10.3390\/membranes12080801","type":"journal-article","created":{"date-parts":[[2022,8,21]],"date-time":"2022-08-21T23:51:01Z","timestamp":1661125861000},"page":"801","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Comparative Analysis of Bio-Vanillin Recovery from Bioconversion Media Using Pervaporation and Vacuum Distillation"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8113-6094","authenticated-orcid":false,"given":"Rita","family":"Val\u00e9rio","sequence":"first","affiliation":[{"name":"LAQV-Requimte, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal"},{"name":"UCIBIO\u2014Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, NOVA University Lisbon, 2819-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7784-0265","authenticated-orcid":false,"given":"Carla","family":"Brazinha","sequence":"additional","affiliation":[{"name":"LAQV-Requimte, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal"}]},{"given":"Jo\u00e3o","family":"Crespo","sequence":"additional","affiliation":[{"name":"LAQV-Requimte, Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1021\/acssuschemeng.5b01344","article-title":"Vanillin Production from Lignin and Its Use as a Renewable Chemical","volume":"4","author":"Fache","year":"2016","journal-title":"ACS Sustain. 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