Publication
Alga Fucus sp. extracts to produce edible films
| dc.contributor.author | Martins, V. | |
| dc.contributor.author | Machado, M. | |
| dc.contributor.author | Costa, E. | |
| dc.contributor.author | Gomes, A. M. | |
| dc.contributor.author | Poças, F. | |
| dc.contributor.author | Pintado, M. | |
| dc.contributor.author | Morais, R. M. S. C. | |
| dc.contributor.author | Morais, A. M. M. B. | |
| dc.date.accessioned | 2024-10-09T10:40:19Z | |
| dc.date.available | 2024-10-09T10:40:19Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | Introduction: Macroalgae are a good source of nutrients, such as carbohydrates (dietary fiber and polysaccharides), proteins, lipids and minerals [1,2]. Fucus sp. is composed of valuable bioactive compounds, such as fucoxanthin, vitamins, water-soluble (vitamin C and of complex B) and fat-soluble (vitamins A, D, E and K), phenolic compounds, lipids (MUFA and PUFA), and polysaccharides (fucoidans and alginic acid) [1]. This brown alga has been associated with health benefits, such as antioxidant, antimicrobial, anti-tumoral and anti-cancer properties [2]. Its application in the production of edible films presents high potential in food packaging, extending the shelf life of food products. Objectives: To evaluate the antioxidant activity and cytotoxicity bioactive extracts from Fucus sp. To produce an edible film based on PS enriched with the bioactive extracts. To test the antioxidant activity of the edible film. To test physico-chemical properties of the edible film, such as the color, thickness, solubility and water vapor permeability. Conclusions: Extraction at 300 W during 20 minutes is recommended for highest TPC and AA of the liquid extract. This extract showed no cytotoxicity for cells line HaCat. The edible film based on the PS extracted from Fucus sp. enriched with bioactives extracted also from this alga shows antioxidant activity, presents a high water vapor permeability, and 100 % solubility in water, which simulates hydrophilic foods, and lower solubility in hydroalcoholic solutions, which simulate hydrophobic foods. It has a brown color, characterized by relatively low luminosity and saturation values. This edible film has potential to be used in food packaging, whereas presenting high biodegradability. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.14/46920 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | no | pt_PT |
| dc.subject | Alga | pt_PT |
| dc.subject | Fucus sp. | pt_PT |
| dc.subject | Microwave hydrodiffusion and gravity | pt_PT |
| dc.subject | Edible film | pt_PT |
| dc.subject | Antioxidant activity | pt_PT |
| dc.subject | Total phenolic content | pt_PT |
| dc.subject | Citotoxicity | pt_PT |
| dc.title | Alga Fucus sp. extracts to produce edible films | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Portugal | pt_PT |
| oaire.citation.title | Encontro Ciência 2024: +Ciência para Uma Só Saúde e bem-estar global | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |