Encapsulação e caracterização do extrato aquoso de framboesa (Rubus idaeus) para aplicação como corante
The food industry shows the interest for studies aimed at the development of natural products. Thus, the natural pigments have been widely studied, because they take part of the biological metabolism of the plant, acting as an cellular antioxidant. The aim of this study was to extract and microencap...
| Autor principal: | Tosoni, Natara Fávaro |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/6729 |
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| Resumo: |
The food industry shows the interest for studies aimed at the development of natural products. Thus, the natural pigments have been widely studied, because they take part of the biological metabolism of the plant, acting as an cellular antioxidant. The aim of this study was to extract and microencapsulate the natural extract of raspberry (Rubus idaeus) through spray dryer with maltodextrin and gum arabic as wall materials; characterize and evaluate the stability of the bioactive compounds of the microencapsulated materials. Comparing the obtained results, the level of monomeric anthocyanin (15,8±0,8 mg of cyanidin-3-glucoside/100 g of extract), total flavonoids (1,1±0,2 mg quercetin equivalent/100 g) and the total phenolic compounds (621,2± 52,5 mgEAG/100g) were greater for the aqueous extract, however it was the sample with less stability. Over the 14 days, the sample with gum Arabic was the one that lost less phenolic compounds. The color stability of the three treatments were the same. |
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