| Full text | |
| Author(s): |
Vitor Augusto dos Santos Garcia
[1]
;
Josiane Gonçalves Borges
[2]
;
Fernanda Maria Vanin
[3]
;
Rosemary Aparecida de Carvalho
[4]
Total Authors: 4
|
| Affiliation: | [1] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos - Brasil
[2] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos - Brasil
[3] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos - Brasil
[4] Universidade de São Paulo. Faculdade de Zootecnia e Engenharia de Alimentos - Brasil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Food Technology; v. 23, 2020-07-03. |
| Abstract | |
Abstract Acerola and camu-camu fruits possess high vitamin C content. However, since these fruits are little consumed in their fresh form, it is important to consider that vitamin C can be oxidized depending on storage conditions. Thus, this study aimed to produce acerola and camu-camu powders by spray drying to maintain the stability of their vitamin C content during storage. Acerola and camu-camu powders were characterized in relation to their physicochemical characteristics, antioxidant activity, and vitamin C concentration and stability under different storage conditions (30 °C and 40 °C, 75% relative humidity). In general, the powders were proven to be stable, with low water activity (< 0.40) and humidity (< 4.0 g/100 g powder), as well as high vitamin C concentrations (1593.2 and 6690.4 mg/100 g of powder for acerola and camu-camu, respectively). Furthermore, we observed a high antioxidant activity by ABTS●+, DPPH• and FRAP assays. The powders stored at lower temperature (30 °C) showed higher vitamin C stability. In conclusion, acerola and camu-camu powders produced by spray drying are potential sources of vitamin C and active compounds and are therefore suitable for several food industry applications. (AU) | |
| FAPESP's process: | 13/03143-7 - Development of polymer matrices as carriers of ascorbic acid: characterization and evaluation of stability |
| Grantee: | Vitor Augusto dos Santos Garcia |
| Support Opportunities: | Scholarships in Brazil - Doctorate |