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Manufacture of Requeijão cremoso processed cheese with galactooligosaccharide
P C Belsito1, M V S Ferreira1, L P Cappato1
1Universidade Federal Rural do Rio de Janeiro (UFRRJ), Instituto de Tecnologia (IT), 23890-000, Seropédica, Rio de Janeiro, Brazil.
Abstract:
The addition of galactooligosaccharide, (GOS, 0, 1.5, 3 or 4g/100g) on the quality parameters of requeijão cremoso was investigated. Chemical characteristics (pH, moisture, fat and protein), color (L*, a*, b*), water mobility by TD- nuclear magnetic resonance, rheology (flow curve and oscillatory tests), microstructure and sensory acceptance (consumer test) were evaluated. The addition of GOS provided a denser and compact structure and reduced number and size of fat globules. Increased GOS level (3 and 4g/100g) improved the softness and spreadability (decrease of G', G″ and apparent viscosity and an increase of tan δ and melting index) and impacted positively on the aroma and taste of the requeijão cremoso. Overall, the addition of GOS in requeijão cremoso was proved to be a potential and interesting technological option.
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