Freezing/thawing as an accelerating process of wet- and dry-aged Nellore beef.

This study aimed to evaluate the use of freezing/thawing as a way of accelerating the aging processes of beef from Nellore animals. Non-frozen (NF) or freezing/thawing (FT) strip loins were aged (for 14 and 28 days) using two systems: bone-in dry-aging (DA); boneless wet-aging (WA). FT-treated samples had greater weight losses (P < 0.05) during aging than NF-treated samples, especially using the DA process. However, the weight loss of the FT 14-days DA beef samples was comparable to that of NF 28-days DA. FT beef had lower fragmentation index and shear force values (P < 0.05), as well as its maximum sensorial tenderness was achieved earlier (P < 0.05) than the NF counterpart. With 28 days of aging, DA beef showed higher (P < 0.05) tenderness and juiciness scores and lower lightness values than WA beef. The FT process decreased the reducing capacity of meat samples, generating more metmyoglobin and lower amounts of chroma than NF. The expected volatile profile of DA beef was achieved faster in FT-treated samples, but the freezing treatments did not compromise the microbial count for either aging system. Our findings indicate that accelerated DA by the FT process could improve the palatability of Nellore beef, allowing the desired tenderness and flavor profile to be achieved in a shorter time, without increasing costs with weight losses or adversely affecting physicochemical, chemical, and microbial characteristics.

Assessment of Japanese radish derivatives as nitrite substitute on the physicochemical properties, sensorial profile, and consumer acceptability of restructured cooked hams.

This study aimed to evaluate the technological and sensory properties of restructured cooked hams prepared with natural curing agents (0.5% radish powder, HRP; 3% radish juice, HRJ; and 0.5% radish pulp powder, HRPP) and with 40 and 150 mg/kg sodium nitrite (HN40 and HN150, respectively). No difference was observed for pH, proximate composition, or cooking loss. Higher residual nitrite contents were observed in the HN150, followed by the radish derivatives hams and HN40. All radish derivatives hams had a similar hue (h) color to HN40, but the h values of HRJ also did not differ from the HN150 ones. The stability of the cured color was not affected. Consumers perceived a non-characteristic aroma and flavor in the radish derivatives hams, but the HRJ had the best acceptance scores. The HRJ appearance was similar to the HN150, and the other sensory attributes were like the HN40. The potential use of radish derivatives, especially radish juice, as natural curing agents was confirmed.

Desenvolvimento de muffin funcional e avaliação da aceitabilidade / Functional muffin development and acceptability evaluation

Objetivou-se o desenvolvimento de muffin funcional com substituição parcial da sacarose por fruto-oligossacarídeo e adicionado de isolado proteico de soja e avaliar a aceitação do muffin padrão e funcional. No grupo de foco observou-se que os termos de sabor e aroma se apresentaram semelhantes para ambos. O teste de aceitação em relação ao aspecto global apresentou diferença significativa (p≤0,05), com médias de 7,02 e 6,54 para o muffin padrão e o funcional, respectivamente. No entanto, considerando a escala hedônica utilizada, ambas as amostras foram bem aceitas sensorialmente. O teste de intenção de compra não apresentou diferença significativa (p>0,05). O muffin padrão foi significativamente preferido em relação ao funcional. Portanto, conclui-se que o produto desenvolvido possui grande potencial de mercado e boa aceitação sensorial.

Elaboração de hambúrguer a base de carne de frango com adição de fibras / Elaboration of chicken-based meat patty with added fiber

Este trabalho objetivou avaliar sensorialmente hambúrgueres a base de carne de frango adicionados de farinha de aveia e biomassa de banana verde. Realizou-se a metodologia CATA, na qual foram avaliados os atributos de aparência, aroma, sabor e textura e o teste de intenção de compra. A metodologia CATA permitiu identificar as diferenças entre as formulações e os atributos, ou seja, caracterizou eficientemente as formulações. Para intenção de compra, verificou-se que houve diferença significativa entre as amostras (p≤0,05), sendo que o hambúrguer adicionado de biomassa de banana verde foi o que apresentou maior intenção de compras. Conclui-se que é viável adicionar farinha de aveia e biomassa de banana verde em hambúrgueres a base de carne de frango, uma vez que essas fibras são potenciais ingredientes para substituição de gordura.