Ana Maria Rebelo Barreto Xavier

Assistant Professor

Contact

Department

  • Chemistry
  • 29.1.32

Research

Links

Scientific Interests

Microbial Technology. Biotechnological processes for production and application of enzymes and other metabolites. Kinetics of different types of microbial cultures in different types of bioreactors. Renewable resources and biorefineries. Enzymes and biocatalysis.

Second generation bioethanol production – Focus on pulp and paper industry wastes as feedstock for Bioenergy. Different lignocelulosic biomass pre-treatments, hydrolysis and fermentation.

Ligninolytic enzymatic activity for bleaching processes of pulp and paper industry. Ligninolytic activity for pulp and paper effluent cleaning processes.

Laccase production and induction. Laccase immobilization in nanoparticles and laccase activation with ionic liquids.

Biorefinery - Potentialities of hardwood spent sulfite liquor. Yeasts for bioethanol production, Single Cell Protein and biopolymers production.

Mixed cultures for subproducts valorization.

Lactic acid fermentation from renewable resources. 

Short CV

Degree (“Licenciatura”) in Aplicated Chemistry - Biotechnology, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal, 23/07/87.
PhD in Biological Engineering, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa (FCT-UNL)under the supervision of Professor Manuel Carrondo. Thesis: “Adsorção de ácido lático e sua produção em fermentador com recirculação celular em membranas de ultrafiltração” (1996). Graduation in Chemistry - Biotechnology, (FCT-UNL).

1993: Assistant (“Assistente Estagiária”), University of Aveiro.

Since 1996: Assistant (“Auxiliar”) Professor, University of Aveiro

 

Present Research Group

Luísa Serafim
Dmytri Evtyugin
Jorge Rocha 
Mariana Amândio

Main present collaborators

Luísa Serafim
Dmytri Evtyugin
Inês Portugal
Jorge Saraiva

Pedro Carvalho

Present projects

Non-funded Projects
Laccase biorreactor production by Trametes versicolor

Funded Projects
Projecto do Senado da Universidade de Aveiro com colaboração do Departamento de Biologia intitulado “Valorização de produtos agro-industriais de baixo valor” (1997-2000).

 Study of Pulp and Paper Industry effluent cleaning by lignolytic cultures of Trametes

Funding: FCT, Fundacão para a Ciência e Tecnologia

POCTI/EQU/48489/2002.

BIOREFINARy – Potencialities of hardwood spent sulfite liquor

Funding  Caima – Indústria de Celulose SA 2007-2008.

- INPACTUS - products § innovative technologies from eucalypt. 2018-2022 UA+ University of Coimbra, The Navigator company. POCI-01-0247-FEDER-021874 ; Funding: PT2020.

 -MULTISMART-Innovative multifunctional nanofibrous membranes for removal of mycotoxins in liquid foods. UA+University of Minho. 2018-202. POCI-01-0145-FEDER-031924; Funding:FCT - 02/SAICT/201

Selected Publications

Amândio, M. S. T.; Rocha, J. M. S.; Serafim, L. S.; Xavier, A. M. R. B. Cellulosic bioethanol from industrial Eucalyptus globulus bark residues using kraft pulping as a pretreatment. Energies 2021, 14, 1–19, https://doi.org/10.3390/en14082185    

Rita H. R. Branco, Amândio, M.S.T., Luísa S. Serafim, Ana M.R.B. Xavier. Ethanol Production from Hydrolyzed Kraft Pulp by Mono- and Co-Cultures of Yeasts: The Challenge of C6 and C5 Sugars Consumption. Energies 2020, 13, 744; https://doi.org/10.3390/en13030744

Cristiano C. S. Fortes, Ana L Daniel-da-Silva, Ana P.M. Tavares, Ana M.R.B. Xavier, Optimization of enzyme immobilization on functionalized magnetic nanoparticles for laccase biocatalytic reactions. Chemical Engineering & Processing: Process Intensification, 117,1-8, 2017 https://doi.org/10.1016/j.cep.2017.03.009 

Maria C. Fernandes, Miguel D. Ferro, Ana F.C. Paulino, Joana A.S. Mendes, Janis Gravitis, Dmitry V. Evtuguin, Ana M.R.B. Xavier, Enzymatic saccharification and bioethanol production from Cynara cardunculus pretreated by steam explosion. Bioresource Technology 186, 309–315, 2015 https://doi.org/10.1016/j.biortech.2015.03.037

S.R. Pereira, V.Sànchez i Nogué, C.J R Frazão, L. S. Serafim, M.F.Gorwa-Grauslund, A.M R B Xavier, Adaptation of Scheffersomyces stipitis to hardwood spent sulfite liquor by evolutionary engineering. Biotechnology for Biofuels 8, 50, 2015. http://biotechnologyforbiofuels.biomedcentral.com/articles/10.1186/s13068-015-0234-y

Joana A.S. Mendes, Ana M.R.B. Xavier, Dmitry V. Evtuguin, Luísa P.C. Lopes. Integrated utilization of grape skins from white grape pomaces. Industrial Crops and Products 49: 286– 291, 2013.

Pereira SR, Nunes DJP, Evtuguin DV, Serafim LS, Xavier AMRB. Advances in ethanol production from hardwood spent sulphite liquors. Process Biochemistry 48: 272–282, 2013.

Ana P.M. Tavares, Juliana A. N. Pereira, Ana M.R.B. Xavier, Effect of Ionic Liquids activation on laccase from Trametes versicolor: enzymatic stability and activity, Engineering in Life Sciences, 12 (5) 1–8, 2012.

Daniel L. A. Fernandes, Carlos M. Silva, Ana M.R.B.Xavier,  Dmitry Evtuguin, Fractionation of Sulphite Spent Liquor Using Ion Exchange Resins for Biochemical Processing, Journal of Biotechnology, 162, 415– 421, 2012.

Jorge A. Saraiva, Ana P. M. Tavares, Ana M. R. B.Xavier, Effect of the Inducers Veratryl Alcohol, Xylidine,and Ligninosulphonates on Activity and Thermal Stability and Inactivation Kinetics of Laccase from Trametes versicolor, Appl Biochem Biotechnol, 167:685–693, 2012.

S. R. Pereira, Š. Ivanuša, D.V. Evtuguin, L. S. Serafim, A. M.R.B. Xavier, Biological treatment of eucalypt spent sulphite liquors: A way to boost the production of second generation bioethanol. Bioresource Technology 103 131–135, 2012.

Xavier, A. M. R. B., Correia, M. F., Pereira, S. R., and Evtyugin, D. V., Second-generation bioethanol from eucalypt sulphite spent liquor. Bioresource Technology, 101: 2755–2761, 2010.

A.P.M. Tavares, M.A.Z. Coelho, M.S.M. Agapito, J.A.P. Coutinho and A.B.M.R. Xavier, Optimization and modelling of laccase production by Trametes versicolor in a Bioreactor using Statistical Experimental Design 2006 Applied Biochemistry and Biotechnology, 134, 233-248.

Gamelas, J.A.F., Tavares, A.P.M., Evtuguin, D.V., Xavier, A.M.R.B. “Oxygen bleaching of kraft pulp with polyoxometalates and laccase applying multi-stage process: comparative study”. Journal of Molecular Catalysis B: Enzymatic, 2005, 33, 57-64.

Tavares, A.P.M., Coelho, M.A.Z., Coutinho, J.A.P., Xavier, A.M.R.B. Laccase improvement in submerged cultivation: induced production and kinetic modeling. Journal of Chemical Technology and Biotechnology, 2005, 80, 669-676.

A.P.M. Tavares, M.A.Z. Coelho, J.A.P. Coutinho, A.M.R.B. Xavier. Laccase improvement in submerged cultivation: induced production and kinetic modelling. Journal of Chemical Technology and Biotechnology, 80 688-696(2005).

J.A.F. Gamelas, A.P.M. Tavares, D.V. Evtuguin, A.M.B. Xavier. Oxygen bleaching of kraft pulp with polyoxometalates and laccase applying multi-stage process: comparative study. Journal of Molecular Catalysis B: Enzymatic, 33 57-64 (2005).

A.M.R.B. Xavier, L.M.D.Gonçalves, J.L.Moreira and M.J. Carrondo,(1995) Operational patterns affecting lactic acid production in ultrafiltration cell recycle bioreactor. Biotechnol.Bioeng. 45: 320-327.

Gonçalves, L.M.D., Xavier, A.M.R.B., Almeida, J.S., Carrondo, M.J.T.,(1991) Concomitant substrate and product inhibition kinectics in lactic acid production. Enz and Microbial Tecnology 13, 314-319.
 

Book Chapters

Serafim L.S., Xavier A.M.R.B., Lemos P.C. (2018) Storage of Hydrophobic Polymers in Bacteria. In: Geiger O. (eds) Biogenesis of Fatty Acids, Lipids and Membranes. Handbook of Hydrocarbon and Lipid Microbiology. Springer, Cham.  Online ISBN 978-3-319-43676-0. DOI https://doi.org/10.1007/978-3-319-43676-0_33-1  
 
Ana P M Tavares, Cláudia G Silva and Ana M R B Xavier, Laccase properties, reaction mechanisms and applications: an overview in Laccase, Applications, Investigations and Insights, Edited by Amanda Harris in Biochemistry Research Trends, Nova Publishers, New York, 1st chap, 1-26, 2017. ISBN: 978-1-53610-582-7.
 
Ana P.M. Tavares and Ana M.R.B. Xavier (2014), Application of Oxidative Enzymes in the Treatment of Industrial Effluents, chapter 7 in Biotechnology Vol. 11:  Biodegradation and Biorremediation, 193–214. Studium Press LLC, Houston, TX, USA. ISBN: 1-62699-026-1.
 
Ana P.M. Tavares, Ana M.R.B. Xavier and Dmitry Evtuguin (2014), Biotechnology Applications in Pulp and Paper Industry, chapter 22 in Biotechnology Vol.12: Bioprocess Engineering, 561–581. Studium Press LLC, Houston, TX, USA. ISBN: 1-62699-027-1.
 
Daniel L. A. Fernandes, Susana R. Pereira, Luísa S. Serafim, Dmitry Evtuguin and Ana M.R.B.Xavier (2012) Second Generation Bioethanol from Lignocellulosics: Processing of Hardwood Sulphite Spent Liquor, In Bioethanol, Marco A. P. Lima (Ed.), InTech, . InTech, Rijeka, Croatia pp. 123-152. ISBN 978-953-51-0008-9.

Teaching Activity

Undergraduate courses: Food Biotechnology, Microbial Biotechnology, Biocatalysts, Unit Operations in Food Processing, Mass and Energetic Balances and Mass Transfer, General Chemical Engineering Chemistry and Biochemistry Pratical classes.

 

MSc Thesis supervision
“Estudo da actividade lenhinolítica do Trametes versicolor” with co-orientation – 2000
“Estudo da biodegradação da lenhina pelo fungo Trametes versicolor“ with co-orientation – 2001
"Tratamento de efluente de produção de pasta Kraft por Trametes versicolor" with co-orientation - 2007
“Produção de bioetanol a partir de licor de cozimento ao sulfito ácido” with co-orientation, 2008, Theses premiated with first prize of ChemPor Jovem 2008
“Produção de proteína microbiana a partir de licor de cozimento ao sulfito ácido” with co-orientation - 2008
“Optimização de um fermentador de leito fixo para desacidificação biológica de mostos e vinhos" in PROENOL with co-orientation, 2008
“Projecto de optimização do tratamento biológico, com o sistema BioAmp GT, em águas residuais”– in PROQUICHEME, with co-orientation, 2008
“Fermentação contínua de mosto com leveduras imobilizadas em alginato" in PROENOL with co-orientation - 2009
"Tratamento biológico de efluente de produção kraft por Phlebia rufa", with co-orientation - 2009
"Produção, isolamento e caracterização química do exopolissacarídeo do fungo da prodridão branca da madeira Tramentes versicolor", with co-orientation - 2009
"Estudo da estabilidade térmica e bárica da levedura Pichia stipitis", with co-orientation - 2009"
"Bioproccessing of Spent Sulphite Liquor for Bioethanol and Single Cell Protein production", with co-orientation -2010
"Biorefinery: valorisation of pulp and paper industry side-products for bioplastics production", with co-orientation -2010
"Estudo da estabilidade, actividade e cinética enzimática da lacase em líquidos iónicos", with co-orientation - 2010
"Cinética de Produção de Etanol por Pichia stipitis" -", with co-orientation - 2011
“Estudo e optimização do funcionamento de uma ETAR industrial” –with co-orientation - 2012
“Produção de espumante pelo Método Charmat com leveduras imobilizadas” -with co-orientation - 2012
"Produção de bioetanol a partir de SSLs: S. stipitis vs S. cerevisae" -with co-orientation - 2012

"Certificação de processos na área da biotecnologia alimentar" -with co-orientation - 2013
 “Produção de bioetanol: Efeito da concentração da fonte de carbono” -with co-orientation - 2013
“O efeito de acumulação de piruvato em transaminações com levedura” with co-orientation 2013

“Caraterização de Leveduras Imobilizadas por Citometria de Fluxo”-with co-orientation - 2013

 “Processos de Fracionamento para a Valorização da Palha de Milho”-with co-orientation - 2013
“Estabilização tartárica do vinho por adição da carboximetilcelulose”-with co-orientation - 2014
“Estudo da hidrólise da pasta kraft com diferentes enzimas”-with co-orientation - 2014
“Imobilização de lacase em nanopartículas de magnetite”-with co-orientation - 2014
“Desafios na produção de etanol a partir de biomassa lenhocelulósica”-with co-orientation - 2014
“Macroalgas como matéria-prima para a cultura de bactérias marinhas”with co-orientation - 2015
“Estudo da imobilização da lacase em nanopartículas magnéticas e sua aplicação”with co-orientation-2015
“Estudo do comportamento fermentativo de Actinobacillus succinogenes para a produção de ácido succínico e ácido lático” -with co-orientation - 2015
“Estudo do efeito do arejamento na fermentação de Scheffersomyces stipitis”-with co-orientation - 2015
“Eco-engenharia de culturas microbianas produtoras de bioplásticos” -with co-orientation - 2015
“Acidificação de resíduos industriais para obter substratos microbianos” -with co-orientation - 2015
“Otimização do processo de Dry-Hopping na Casa da Cerveja” -with co-orientation - 2016
“Produção de Biocombustível de 2ª Geração:  Obtenção de Bioetanol a partir de Cardo”-with co-orientation - 2016
“Mixotrophic fermentation for butanol production”-with co-orientation - 2017
“ Tratamento enzimático de pasta kraft de Eucalyptus glóbulos como estratégia inovadora no processo de branqueamento” - -with co-orientation - 2017
“Avaliação de soluções para o scuffing em garrafas de tara retornável”-with co-orientation - 2018
“Produção de Bioetanol de 2ª Geração numa lógica de Economia Circular” with co-orientation 2018
“Produção de Bioetanol numa lógica de Economia Circular”-with co-orientation - 2018
“Estudo da produção de Kefir e Kefirano”--with co-orientation - 2018
“Efeito do tratamento enzimático na aptidão de pastas celulósicas utilizadas na produção de papel tissue”- Mestrado em Engª Química, Universidade de Aveiro, concluído em Julho de 2019, com co-orientação.
“Modelação da produção de bioetanol por leveduras: contribuição para uma biorrefinaria”- Mestrado em Engª Química, Universidade de Aveiro, concluído em Julho de 2019, com co-orientação.
“Produção de Ácido Succínico a partir de hidrolisados de pasta kraft do eucalipto” - Mestrado em Biotecnologia, Universidade de Aveiro, concluído em Dezembro de 2019, com co-orientação.
“Produção de Bioetanol de 2ª Geração numa lógica de Economia Circular” - Mestrado em Biotecnologia, Universidade de Aveiro, concluído em Dezembro de 2019, com co-orientação.
“Proposta e validação de novos binómios tempo/temperatura de pasteurização para refeições da CENTRALREST, LDA.”- Mestrado em Biotecnologia, Universidade de Aveiro, concluído em Julho de 2020, com co-orientação.
“Estudo da produção de kefirano a partir do soro de leite” - Mestrado em Biotecnologia, Universidade de Aveiro, concluído em Dezembro de 2020, com co-orientação.
“Potencial enzimático de fungos filamentosos em pré-tratamento de borras de café para fermentação acidogénica”- Mestrado em Biotecnologia, Universidade de Aveiro, concluído em Março de 2021, com co-orientação.
 
1 PhD thesis co-supervision

"Production of cellulosic sugars and bioethanol" - ongoing

 2 PhD theses supervised
“Produção de lacase para potencial aplicação como oxidante na indústria papeleira” with co-orientation –2006, Theses premiated with an honour mention by 2006-CUF Premium


“Second generation bioethanol production from a sub-product of pulping industry” with co-orientation 2013.

 

Ongoing Supervisions

Bruno da Costa Inglês

PhD Student

Catarina Reis Funico

Research Fellowship

Maria Inês Martins Santos

MSc Student

Projects

Design of Sustainable Mussel-Inspired Functional (Nano)Materials through Enzymatic Approaches (BioMuss)

PartnerFundação para a Ciência e a Tecnologia
Bringing nature as a source of endless inspiration for the development of promising classes of sustainable (nano)materials and hydrogels, a strong emphasis has been given on the latest advances for their design and production, aiming to obtain outstanding biological characteristics as the natural counterpart. Polydopamine (PDA), a bioinspired po...

Innovative Technologies to Enhance the Consumption Experience of Seaweeds (ITSEE)

PartnerIndustry National
ITSEE’s main goal is to develop a seaweed food product, i.e., a new seaweed ingredient (NewSI), that is high in protein and appealing, through the development of processing strategies that will allow the modification/removal of the unpleasant organoleptic properties that hamper their acceptability. This product is meant for direct consumption an...

Upgrading wastewater treatment via synergistic adsorption-degradation of organic microcontaminants by enzyme-modified carbon materials (SYNERGY)

PartnerFundação para a Ciência e a Tecnologia
Scientific and technological developments of the last century undeniably contributed to achieve current lifestyle standards. Yet, such progress also resulted in an undesirable heritage of anthropogenic contaminants that are seriously affecting water quality. That is the case of organic microcontaminants, such as pharmaceuticals, which end up in ...

Valorização de bagaço de uva para produção de ácido láctico, contribuição par a economia circular (POMACE2LACTIC)

CoordinatorFundação para a Ciência e a Tecnologia

From Fossil To Forest (FF2F (Paper with barrier properties))

PartnerIndustry National
This Innovation Pact is aimed at developing cellulose-based packaging and products to replace fossil-based plastics. In this context, it comprises the following six work packages: (1) high yield pulp and brown paper; (2) paper with increased mechanical strength; (3) paper with barrier properties; (4) biocomposites; (5) paper sensors for...

Innovative multifunctional nanofibrouS MembrAnes for Removal of mycoToxins in liquid foods (i-multiSMART)

PartnerFundação para a Ciência e a Tecnologia

Innovative Products and Technologies from Eucalyptus Project (InPacTus)

PartnerIndustry National
Inpactus, to be developed by the Consortium, aims to develop new solutions, such as cellulosic pulps with innovative features, new paper products with different specificities and functions, tissue paper with innovative properties, new bioproducts, biofuels and other materials obtained from the deconstruction and conversion of forest biomass and ...

Publications

Spent Yeast Valorisation as a Supplementation Source for Cellulosic Ethanol Fermentation

Amândio, MST; Gonçalves, MJA; Serafim, LS; Rocha, JMS; Xavier, AMRB
2025, WASTE AND BIOMASS VALORIZATION, 16, 7, 3591-3603.

Spent yeast reuse as inoculum: a strategy to boost cellulosic ethanol productivity

Amândio, MST; Gonçalves, MJA; Serafim, LS; Rocha, JMS; Xavier, AMRB
2025, BIOMASS CONVERSION AND BIOREFINERY, 15, 10, 15291-15303.

Obtaining Value from Wine Wastes: Paving the Way for Sustainable Development

Evtuguin, D; Aniceto, JPS; Marques, R; Portugal, I; Silva, CM; Serafim, LS; Xavier, AMRB
2024, FERMENTATION-BASEL, 10, 1.
ISBN: 2311-5637

Fed-batch SSF with pre-saccharification as a strategy to reduce enzyme dosage in cellulosic ethanol production

Amandio, MST; Rocha, JMS; Xavier, AMRB
2024, FUEL, 357.
ISBN: 1873-7153

Enzymatic Hydrolysis Strategies for Cellulosic Sugars Production to Obtain Bioethanol from Eucalyptus globulus Bark

Amândio, MST; Rocha, JMS; Xavier, AMRB
2023, FERMENTATION-BASEL, 9, 3.

Improving simultaneous saccharification and fermentation by pre-saccharification and high solids operation for bioethanol production from Eucalyptus globulus bark

Amândio, MST; Rocha, JMS; Xavier, AMRB
2023, JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 11, 5.

Valorization of brewer's spent grain by furfural recovery/removal from subcritical water hydrolysates by pervaporation

Alonso-Riaño, P; Illera, AE; Amândio, MST; Xavier, AMRB; Beltrán, S; Sanz, MT
2023, SEPARATION AND PURIFICATION TECHNOLOGY, 309.

Cardoon Hydrolysate Detoxification by Activated Carbon or Membranes System for Bioethanol Production

Tavares, APM; Goncalves, MJA; Bras, T; Pesce, GR; Xavier, AMRB; Fernandes, MC
2022, ENERGIES, 15, 6.

Enzymatic Potential of Filamentous Fungi as a Biological Pretreatment for Acidogenic Fermentation of Coffee Waste

Pereira, J; Cachinho, A; de Melo, MMR; Silva, CM; Lemos, PC; Xavier, AMRB; Serafim, LS
2022, BIOMOLECULES, 12, 9.

Getting Value from Pulp and Paper Industry Wastes: On the Way to Sustainability and Circular Economy

Amandio, MST; Pereira, JM; Rocha, JMS; Serafim, LS; Xavier, AMRB
2022, ENERGIES, 15, 11.

Laccase Properties, Reaction Mechanisms and Applications: An Overview

In Amanda Harris (Eds.), Laccase: Applications, Investigations and Insights
Ana P.M. Tavares, Cláudia G. Silva and Ana M.R.B. Xavier
2017, 1-26, Nova Science Publishers Inc.
ISBN: 978-1-53610-556-8

Chapter 7 - Application of Oxidative Enzymes in the Treatment of Industrial Effluents

Biotechnology Volume 12: Bioprocess Engineering
Ana P.M. Tavares and Ana M.R.B. Xavier
2014, Houston (USA), STUDIUM PRESS LLC.
ISBN: 9781626990272

Chapter 22 - Biotechnology Applications in Pulp and Paper Industry

Biotechnology Volume 12: Bioprocess Engineering
Ana P.M. Tavares, Ana M.R.B. Xavier and Dmitry Evtuguin
2014, Houston (USA), STUDIUM PRESS LLC.
ISBN: 9781626990272

Second Generation Bioethanol from Lignocellulosics: Processing of Hardwood Sulphite Spent Liquor

Bioethanol
Fernandes DLA, Pereira SR, Serafim LS, Evtuguin DV, Xavier AMRB
2011, Rijeka, InTech.

Xylose fermentation by Scheffersomyces stipites for 2nd generation bioethanol: Optimization of bioprocess aeration strategy

Ana M.R.B. Xavier, Tiago M. Henriques, Suana R. Pereira, Luísa S. Serafim
2016, 33, S113.

Different dissolved oxygen tensions on bioethanol production by Scherffersomyces stipitis

T. M. Henriques, S. R. Pereira, L. S. Serafim, and A. M. R. B. Xavier
2015.

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