ABSTRACT
The objective of this work was to evaluate the effects of the replacement of nitrite by natural antioxidants from black garlic (BG) on the quality parameters of jerked beef meat with pork for 60 days. Four formulations were prepared: control, 0.02% of sodium nitrite in brine curing, w/v (CON); 1.5% BG in brine curing, w/v (ASU); 1.5% BG in dry curing, w/w (ASS); and 1.5% of BG in the brine curing, w/v and 1.5% of BG in dry curing, w/w (ASUS). Nutritional composition, pH, water activity, shear force, fatty acid profile, color, and oxidative stability of the formulations were analyzed. The addition of BG did not affect the nutritional composition, pH, water activity, shear force, and fatty acid profile. On the other hand, it resulted in lower weight loss after centrifugation and lower values of L* and a*. TBARS values from the 30th day of storage were lower in the ASUS formulation, while carbonyl compounds at all times were lower than in the CON formulation. Results suggest that BG was an efficient alternative to nitrite in controlling protein oxidation during storage. Thus, the use of pork for the manufacture of jerked beef can be an alternative, and black garlic can be applied as a natural additive to the replacement of nitrite. In addition, black garlic was efficient in improving the oxidative stability of the jerked beef meat with pork.
ABSTRACT
Foram adicionados ao leite de cabra cru níveis crescentes de óleo essencial de erva doce que foram de 0 por cento, 1 por cento, 2 por cento e 3 por cento. Observou-se que a adição de óleo ao leite não teve efeito significativo (P<0,05) na microbiota para nenhum tratamento. Com relação às determinações de pH, observou-se um efeito linear decrescente à medida que o percentual de óleo aumentou no leite. Portanto, o objetivo deste trabalho foi avaliar o efeito do óleo essencial de erva-doce sobre a microbiota no leite de cabra.