Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids

The main goal of the present work was to study the continuous production of volatile fatty acids from a cheese whey powder in anaerobic packed bed biofilm reactors (PPBRs). Vukopor S10 ceramic cubes and granular activated carbon were employed as cell immobilization materials. Experiments were done a...

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Main Authors: J.M. Bendada Domingos, G. Agustin Martinez, A. Scoma, L. Bertin, M. Reis, F. Fava
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2016-05-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/3085
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author J.M. Bendada Domingos
G. Agustin Martinez
A. Scoma
L. Bertin
M. Reis
F. Fava
author_facet J.M. Bendada Domingos
G. Agustin Martinez
A. Scoma
L. Bertin
M. Reis
F. Fava
author_sort J.M. Bendada Domingos
collection DOAJ
description The main goal of the present work was to study the continuous production of volatile fatty acids from a cheese whey powder in anaerobic packed bed biofilm reactors (PPBRs). Vukopor S10 ceramic cubes and granular activated carbon were employed as cell immobilization materials. Experiments were done at 37°C, pH 6. Reactors were frequently sampled for metabolites and biogas analyses. Preliminary batch tests, which were carried out in 100-mL anaerobic Pyrex bottles, demonstrated that the process consisted of two sequential phases: (a) the conversion of lactose into lactic acid and (b) the conversion of lactic acid into a mixture of VFAs. The continuous process was settled up in 1-L glass column and two different hydraulic retention times (9 and 6 days) were applied during the continuous process. Almost 80% of lactose bioconversion was achieved in Vukopor reactors, this corresponding to a 10 g/L VFAs concentration.
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spelling doaj.art-5fdde1b4f9eb434e8e64af2b982e36742022-12-21T18:14:57ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162016-05-014910.3303/CET1649033Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty AcidsJ.M. Bendada DomingosG. Agustin MartinezA. ScomaL. BertinM. ReisF. FavaThe main goal of the present work was to study the continuous production of volatile fatty acids from a cheese whey powder in anaerobic packed bed biofilm reactors (PPBRs). Vukopor S10 ceramic cubes and granular activated carbon were employed as cell immobilization materials. Experiments were done at 37°C, pH 6. Reactors were frequently sampled for metabolites and biogas analyses. Preliminary batch tests, which were carried out in 100-mL anaerobic Pyrex bottles, demonstrated that the process consisted of two sequential phases: (a) the conversion of lactose into lactic acid and (b) the conversion of lactic acid into a mixture of VFAs. The continuous process was settled up in 1-L glass column and two different hydraulic retention times (9 and 6 days) were applied during the continuous process. Almost 80% of lactose bioconversion was achieved in Vukopor reactors, this corresponding to a 10 g/L VFAs concentration.https://www.cetjournal.it/index.php/cet/article/view/3085
spellingShingle J.M. Bendada Domingos
G. Agustin Martinez
A. Scoma
L. Bertin
M. Reis
F. Fava
Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
Chemical Engineering Transactions
title Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
title_full Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
title_fullStr Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
title_full_unstemmed Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
title_short Development of a Continuous Biofilm-Based Process for the Bioconversion of Cheese Whey into Volatile Fatty Acids
title_sort development of a continuous biofilm based process for the bioconversion of cheese whey into volatile fatty acids
url https://www.cetjournal.it/index.php/cet/article/view/3085
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