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Campo DC | Valor | Idioma |
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dc.contributor.author | Ferreira, Andreia S. | por |
dc.contributor.author | Pereira, Liliana | por |
dc.contributor.author | Canfora, Feliciana | por |
dc.contributor.author | Silva, Tiago H. | por |
dc.contributor.author | Coimbra, Manuel A. | por |
dc.contributor.author | Nunes, Cláudia | por |
dc.date.accessioned | 2023-05-23T08:48:40Z | - |
dc.date.available | 2023-05-23T08:48:40Z | - |
dc.date.issued | 2023-01-03 | - |
dc.identifier.citation | Ferreira, A.S.; Pereira, L.; Canfora, F.; Silva, T.H.; Coimbra, M.A.; Nunes, C. Stabilization of Natural Pigments in Ethanolic Solutions for Food Applications: The Case Study of Chlorella vulgaris. Molecules 2023, 28, 408. https://doi.org/10.3390/molecules28010408 | por |
dc.identifier.uri | https://hdl.handle.net/1822/84666 | - |
dc.description.abstract | <i>Chlorella vulgaris</i> is a green microalga with a high chlorophyll content, representing a valuable source of green pigments for food applications. As the application of whole biomass can promote an unpleasant fish-like flavor, the use of chlorophyll extract can overcome this drawback. However, chlorophylls tend to easily degrade when out of the chloroplasts, decreasing their potential as a food ingredient. Thus, to study the suitable conditions for isolated chlorophylls preservation, in this work, the influence of temperature (4 to 60 °C), light (dark or 24 h photoperiod), alkaline conditions (with or without aqueous NaOH addition), and modified atmosphere (air or argon atmosphere) on the stability of the color in ethanolic solutions obtained from <i>C. vulgaris</i> were studied. The loss of green color with temperature followed the first-order kinetics, with an activation energy of 74 kJ/mol. Below 28 °C and dark conditions were suitable to preserve isolated chlorophylls. The addition of NaOH and an inert argon-rich atmosphere did not exhibit a statistically positive effect on color preservation. In the case study, cooked cold rice was colored to be used in sushi. The color remained stable for up to 3 days at 4 °C. Therefore, this work showed that <i>C. vulgaris</i> chlorophylls could be preserved in ethanolic solutions at room or lower temperatures when protected from light, allowing them to obtain a suitable natural food ingredient to color foodstuffs. | por |
dc.description.sponsorship | This work was developed within the scope of the project CICECO-Aveiro Institute of Materials (UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020) and LAQV-REQUIMTE (UIDB/50006/2020 and UIDP/50006/2020), financed by national funds through the FCT/MEC (PIDDAC). Authors acknowledge the European Union (FEDER funds through the Operational Competitiveness Program (COMPETE2020) POCI-01-0247-FEDER-046080–Project cLABEL+-Innovative natural, nutritious, and consumer-oriented clean label foods). Andreia S. Ferreira thanks FCT for the individual grant (SFRH/BD/102471/2014) and for her post-Doc grant ref. REQUIMTE 2021-51. | por |
dc.language.iso | eng | por |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT | por |
dc.relation | LA/P/0006/2020 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT | por |
dc.relation | POCI-01-0247-FEDER-046080 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F102471%2F2014/PT | por |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Chlorella vulgaris | por |
dc.subject | Ethanolic extract | por |
dc.subject | Pigments | por |
dc.subject | Chlorophyll | por |
dc.subject | Color stability | por |
dc.subject | Food ingredients | por |
dc.title | Stabilization of natural pigments in ethanolic solutions for food applications: the case study of Chlorella vulgaris | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/1420-3049/28/1/408 | por |
oaire.citationStartPage | 1 | por |
oaire.citationEndPage | 15 | por |
oaire.citationIssue | 1 | por |
oaire.citationVolume | 28 | por |
dc.date.updated | 2023-01-06T13:53:08Z | - |
dc.identifier.eissn | 1420-3049 | - |
dc.identifier.doi | 10.3390/molecules28010408 | por |
dc.identifier.pmid | 36615600 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Molecules | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 408 | por |
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molecules-28-00408.pdf | 3,25 MB | Adobe PDF | Ver/Abrir |
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