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Recovery of l-Arginine from Model Solutions and Fermentation Broth Using Zeolite-Y Adsorbent
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
Swedish University of Agriculture Sciences.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0002-8042-8239
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0001-9794-8305
Vise andre og tillknytning
2019 (engelsk)Inngår i: ACS Sustainable Chemistry and Engineering, E-ISSN 2168-0485, Vol. 7, nr 9, s. 8900-8907Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Arginine was produced via fermentation of sugars using the engineered microorganism Escherichia coli. Zeolite-Y adsorbents in the form of powder and extrudates were used to recover arginine from both a real fermentation broth and aqueous model solutions. An adsorption isotherm was determined using model solutions and zeolite-Y powder. The saturation loading was determined to be 0.2 g/g using the Sips model. Arginine adsorbed from a real fermentation broth using either zeolite-Y powder or extrudates both showed a maximum loading of 0.15 g/g at pH 11. This adsorbed loading is very close to the corresponding value obtained from the model solution showing that under the experimental conditions the presence of additional components in the broth did not have a significant effect on the adsorption of arginine. Furthermore, a breakthrough curve was determined for extrudates using a 1 wt % arginine model solution. The selectivity for arginine over ammonia and alanine from the real fermentation broth at pH 11 was 1.9 and 8.3, respectively, for powder, and 1.0, and 4.1, respectively, for extrudates. To the best of our knowledge, this is the first time recovery of arginine from real fermentation broths using any type of adsorbent has been reported.

sted, utgiver, år, opplag, sider
American Chemical Society (ACS), 2019. Vol. 7, nr 9, s. 8900-8907
Emneord [en]
Arginine, FAU, Fermentation broth, Escherichia coli, Adsorption, Selectivity, Breakthrough
HSV kategori
Forskningsprogram
Kemisk teknologi; Biokemisk processteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-73954DOI: 10.1021/acssuschemeng.9b00918ISI: 000467351200095Scopus ID: 2-s2.0-85065476739OAI: oai:DiVA.org:ltu-73954DiVA, id: diva2:1316015
Merknad

Validerad;2019;Nivå 2;2019-05-27 (oliekm)

Tilgjengelig fra: 2019-05-15 Laget: 2019-05-15 Sist oppdatert: 2023-09-05bibliografisk kontrollert

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Faisal, AbrarGinesy, MireilleHolmgren, AllanEnman, JosefineHedlund, JonasGrahn, Mattias

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ACS Sustainable Chemistry and Engineering

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