Affiliation:
1. Instituto de Tecnologia de Alimentos/ITAL Av. Brasil, 2880 CEP 13070‐178 Campinas Brazil
2. Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas/UNICAMP Rua Monteiro Lobato, 80 CEP 13083‐862 Campinas Brazil
3. Fraunhofer Institute for Process Engineering and Packaging (IVV) Giggenhauser Strasse 35 Freising 85354 Germany
Abstract
SummaryThis study evaluated the formation and dispersion effects with 4% w/w total biopolymer [sunflower meal protein (SMP) and pectin (P)] at SMP:P ratio 1:0, 25:1, 15:1, 5:1, pH 3.7, prepared at room temperature (RT) or heat treated (HT) at 98 °C on emulsion stabilisation. At RT, increasing P concentration increased apparent viscosity and gel‐like behaviour of biopolymer dispersions and emulsions. At SMP:P‐RT ratio 5:1, the dispersion structure showed protein attached to pectin and individual pectin dispersed in the continuous phase. Under this condition, the emulsion presented stability regarding creaming, flocculation and/or coalescence. Whereas when HT, all samples showed low apparent viscosity, but at SMP:P ratio 25:1 and 15:1 emulsions exhibit gel‐like behaviour. However, SMP:P ratio 5:1 dispersion presented spheroid particles and emulsion behaved as liquid‐like material with lower creaming, flocculation and/or coalescence. Therefore, depending on the process parameters, sunflower meal may be used as an ingredient to obtain different food emulsion structure.
Funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Subject
Industrial and Manufacturing Engineering,Food Science