| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000409048 |
| ISSN: | 0001-3765 |
| Authors: | Simoni, Rayssa C1 Lemes, Gislaine F2 Fialho, Sandra1 Goncalves, Odinei H2 Gozzo, Angela M1 Chiaradia, Viviane3 Sayer, Claudia3 Shirai, Marianne A2 Leimann, Fernanda V2 |
| Institutions: | 1Universidade Tecnologica Federal do Parana, Departamento Academico de Alimentos, Campo Mourao, Parana. Brasil 2Universidade Tecnologica Federal do Parana, Programa de Pos-Graduacao em Tecnologia de Alimentos, Campo Mourao, Parana. Brasil 3Universidade Federal de Santa Catarina, Departamento de Engenharia Quimica e Engenharia de Alimentos, Florianopolis, Santa Catarina. Brasil |
| Year: | 2017 |
| Season: | May |
| Volumen: | 89 |
| Pages: | 745-755 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Nota breve o noticia |
| Approach: | Analítico, descriptivo |
| English abstract | Enzymatically crossliked gelatin hydrogel was submitted to two different drying methods: air drying and freeze drying. The resulting polymeric tridimensional arrangement (compact or porous, respectively) led to different thermal and swelling properties. Significant differences (p < 0.05) on thermal and mechanical characteristics as well as swelling in non-enzymatic gastric and intestinal simulated fluids (37 ºC) were detected. Water absorption data in such media was modelled according to Higuchi, Korsmeyer-Peppas, and Peppas-Sahlin equations. Freeze dried hydrogel showed Fickian diffusion behavior while air dried hydrogels presented poor adjustment to Higuchi model suggesting the importance of the relaxation mechanism at the beginning of swelling process. It was possible to conclude that the same gelatin hydrogel may be suitable to different applications depending on the drying process used |
| Disciplines: | Química, Ingeniería |
| Keyword: | Bioquímica, Química de alimentos, Ingeniería industrial, Secado con aire, Liofilización, Hidrogeles, Transglutaminasa |
| Keyword: | Chemistry, Engineering, Biochemistry, Food chemistry, Industrial engineering, Air drying, Lyophilization, Hydrogels, Transglutaminase |
| Full text: | Texto completo (Ver PDF) |
