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Gomes-Dias JS, Teixeira-Guedes CI, Teixeira JA, Rocha CMR. Red seaweed biorefinery: The influence of sequential extractions on the functional properties of extracted agars and porphyrans. Int J Biol Macromol 2024; 257:128479. [PMID: 38040161 DOI: 10.1016/j.ijbiomac.2023.128479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 11/13/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Red seaweeds are exploited for their hydrocolloids, but other fractions are usually overlooked. In a novel approach, this study aimed to evaluate cold-water (CWE), ethanolic (EE), and alkaline (SE) extractions, alone and in sequence, to simultaneously: i) decrease the hydrocolloid extraction waste (valorizing bioactive side-streams and/or increasing extraction yield); and ii) increase the hydrocolloids' texturizing properties. It is the first time these extractions' synergetic and/or antagonistic effects will be accessed. For Porphyra dioica, a combination of CWE and EE was optimal: a positive influence on the melting temperature (increasing 5 °C to 74 °C) and sulphate content (a 3-fold reduction to 5 %) was observed, compared to a direct porphyran extraction. The same was observed for Gracilaria vermiculophyla, recovering two additional bioactive fractions without impacting the hydrocolloid's extraction (agar with 220 g/cm2 gelling strength and 14 % yield was obtained). The sequential use of CWE, EE, and SE was the most beneficial in Gelidium corneum processing: it enhanced agar's texturizing capacity (reaching 1150 g/cm2, a 1.5-fold increase when compared to a direct extraction), without affecting its 22 % yield or over 88 % purity. Ultimately, these findings clarified the effects of cascading biorefinery approaches from red seaweeds and their pertinence.
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Affiliation(s)
- Joana S Gomes-Dias
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | | | - José A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga, Portugal
| | - Cristina M R Rocha
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; LABBELS - Associate Laboratory, Braga, Portugal.
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Leandro T, Teles M, Gomes-Dias JS, Marques M, Rocha CMR, da Fonseca MMR, Cesário MT. Ulva rigida Valorization into Poly(3-hydroxybutyrate), Organic Acids and Functional Ingredients. Mar Drugs 2023; 21:537. [PMID: 37888472 PMCID: PMC10608297 DOI: 10.3390/md21100537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
Halomonas elongata 1H9T is a moderate halophilic strain able to produce poly(3-hydroxybutyrate) (P(3HB)), a biodegradable plastic, and gluconic acid, a valuable organic acid with wide industrial applications. In this work, the green alga Ulva rigida was used as platform to produce cultivation substrates for microbial conversion as well as functional ingredients, targeting its full valorization. The liquor obtained by autohydrolysis presented the highest concentration of oligosaccharides and protein, being an interesting feedstock to produce functional ingredients. The acid and/or enzymatic hydrolysis liquors are adequate as substrates for microbial processes. Shake flask assays with H. elongata revealed that the N-rich liquor produced after acidic treatment was the best suited for cell growth while the N-poor liquor produced by the enzymatic treatment of acid-pretreated algae residues produced the highest P(3HB) titers of 4.4 g/L. These hydrolysates were used in fed-batch cultivations as carbon and protein sources for the co-production of gluconic acid and polymer achieving titers of 123.2 g/L and 7.2 g/L, respectively. Besides gluconic acid, the Krebs cycle intermediate 2-oxoglutaric acid, also called alpha-ketoglutaric acid (KGA), was produced. Therefore, the co-production of P(3HB) and acids may be of considerable interest as an algal biorefinery valorization strategy.
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Affiliation(s)
- Tânia Leandro
- IBB—Institute for Bioengineering and Biosciences, Bioengineering Department, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (T.L.); (M.T.); (M.M.); (M.M.R.d.F.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Marco Teles
- IBB—Institute for Bioengineering and Biosciences, Bioengineering Department, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (T.L.); (M.T.); (M.M.); (M.M.R.d.F.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - Joana S. Gomes-Dias
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (J.S.G.-D.); (C.M.R.R.)
| | - Mafalda Marques
- IBB—Institute for Bioengineering and Biosciences, Bioengineering Department, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (T.L.); (M.T.); (M.M.); (M.M.R.d.F.)
| | - Cristina M. R. Rocha
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (J.S.G.-D.); (C.M.R.R.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - M. Manuela R. da Fonseca
- IBB—Institute for Bioengineering and Biosciences, Bioengineering Department, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (T.L.); (M.T.); (M.M.); (M.M.R.d.F.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisboa, Portugal
| | - M. Teresa Cesário
- IBB—Institute for Bioengineering and Biosciences, Bioengineering Department, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (T.L.); (M.T.); (M.M.); (M.M.R.d.F.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisboa, Portugal
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Pereira SG, Gomes-Dias JS, Pereira RN, Teixeira JA, Rocha CM. Innovative processing technology in agar recovery: Combination of subcritical water extraction and moderate electric fields. INNOV FOOD SCI EMERG 2023. [DOI: 10.1016/j.ifset.2023.103306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Teixeira-Guedes C, Gomes-Dias JS, Cunha SA, Pintado ME, Pereira R, Teixeira JA, Rocha CM. Enzymatic approach for the extraction of bioactive fractions from red, green and brown seaweeds. Food and Bioproducts Processing 2023. [DOI: 10.1016/j.fbp.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Gomes-Dias JS, Pereira SG, Teixeira JA, Rocha C. Hydrothermal treatments – A quick and efficient alternative for agar extraction from Gelidium sesquipedale. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Castro-Ferreira C, Gomes-Dias JS, Ferreira-Santos P, Pereira RN, Vicente AA, Rocha CM. Phaeodactylum tricornutum extracts as structuring agents for food applications: Physicochemical and functional properties. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Del Río PG, Gomes-Dias JS, Rocha CMR, Romaní A, Garrote G, Domingues L. Recent trends on seaweed fractionation for liquid biofuels production. Bioresour Technol 2020; 299:122613. [PMID: 31870706 DOI: 10.1016/j.biortech.2019.122613] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 05/18/2023]
Abstract
Concerns about fossil fuels depletion has led to seek for new sources of energy. The use of marine biomass (seaweed) to produce biofuels presents widely recognized advantages over terrestrial biomasses such as higher production ratio, higher photosynthetic efficiency or carbon-neutral emissions. In here, interesting seaweed sources as a whole or as a residue from seaweed processing industries for biofuel production were identified and their diverse composition and availability compiled. In addition, the pretreatments used for seaweed fractionation were thoroughly revised as this step is pivotal in a seaweed biorefinery for integral biomass valorization and for enabling biomass-to-biofuel economic feasibility processes. Traditional and emerging technologies were revised, with particular emphasis on green technologies, relating pretreatment not only with the type of biomass but also with the final target product(s) and yields. Current hurdles of marine biomass-to-biofuel processes were pinpointed and discussed and future perspectives on the development of these processes given.
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Affiliation(s)
- Pablo G Del Río
- Department of Chemical Engineering, Faculty of Science, University of Vigo Campus Ourense, As Lagoas, 32004 Ourense, Spain
| | - Joana S Gomes-Dias
- CEB-Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
| | - Cristina M R Rocha
- CEB-Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
| | - Aloia Romaní
- CEB-Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal.
| | - Gil Garrote
- Department of Chemical Engineering, Faculty of Science, University of Vigo Campus Ourense, As Lagoas, 32004 Ourense, Spain
| | - Lucília Domingues
- CEB-Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal
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