This study was aimed to examine the potential use of ethanolic allspice extracts as antioxidant agent on the edible gelatin-chitosan coating film to preserve the beef during retail display. Beef sirloins steaks were used in control (without edible coating), GEL (coating film) and AEXT (coating film containing 300 mg/kg of allspice extract) treatments, overwrapped in oxygen-permeable film and evaluated up to 10 days, in refrigeration (2.5°C). The effects and their interactions were analyzed using the F test (ANOVA) and, when statistically significant (P < 0.05), the means were compared using Duncan test. The psychrotrophic bacteria multiplication was not affected by treatments, but lactic acid bacteria growth was retarded in the coated meat samples. The edible coatings decreased weight losses and lipid oxidation of the meat compared to the control during storage, but the AEXT coating was most effective as an antioxidant. The coatings did not affect the myoglobin redox forms but increased the color stability, leading to samples with lighter (higher L* values) and bright red (higher h values) colors for up to 8-days against 6-days to control. However, these changes in instrumental color were considered small. The use of allspice extract on the edible coating film as an antioxidant is feasible, but more studies are needed to reach the ideal blend to reduce meat discoloration during display.
There is a worldwide demand for new protein sources through environmentally responsible production, and rabbit farming is a sustainable activity. Therefore, this study aimed to characterize meat from different cuts of rabbit carcasses and evaluate their use in the processing of restructured cured cooked ready-to-eat (RTE) products. Rabbit raw meats from different cuts were technologically characterized, and the RTE products were processed from the meats of the entire carcass (RABB), hind legs (RHIND), loin (RLOIN), and foreleg, thoracic cage, and flank (RBACK). Restructured pork cooked ham (PHAM) was used as the reference. Rabbit raw meat from different anatomical parts difered in proximate composition, total collagen and heme-pigment content, water-holding capacity, and CIE color, afecting the characteristics of processed products. RBACK products had higher fat content (5.46%), cooking and reheating losses (7.50% and 5.61%), and poor hardness and chewiness (11.1 N and 17.37 N×mm). Higher values of lightness (L* ~70.27), hue (h ~68.61°), and a slight cured color were observed in RLOIN, with a pale yellowish color described by sensory evaluation. RABB and RHIND were correlated with the sensory attributes of traditional PHAM, being preferred more often and with greater purchase intent than RLOIN and RBACK. It is concluded that cooked ham development from whole carcass meat (RABB) is a potential opportunity for the rabbit industry to ofer value-added technological products of high quality to consumers.
Resumo Há uma demanda mundial por novas fontes proteicas de produções ambientalmente responsáveis, e a cunicultura se enquadra perfeitamente como uma atividade sustentável. Neste contexto, este estudo teve como objetivo caracterizar a carne de diferentes cortes da carcaça de coelho e avaliar sua utilização no processamento de produtos curados cozidos prontos para o consumo (RTE). As carnes cruas de coelho de diferentes cortes foram caracterizadas tecnologicamente, e os produtos RTE foram processados a partir das carnes de carcaça inteira (FC-INT), patas traseiras (FC-PERNIL), lombo (FC-LOMBO), patas dianteiras, caixa torácica e flanco (FC-APARAS). Um produto RTE com carne de pernil suíno (APRESUNTADO) também foi elaborado como referência. A carne de coelho de diferentes partes anatômicas diferiu na composição centesimal, conteúdo total de colágeno e pigmento heme, capacidade de retenção de água e cor (CIE), afetando as características dos produtos elaborados. Os produtos FC-APARAS apresentaram maior teor de gordura (5.46%), perdas por cozimento e reaquecimento (7,50% e 5,61%), baixa dureza e mastigabilidade (11.1 N e 17.37 N×mm). Maiores valores de luminosidade (L* ~70.27), matiz (h ~68.61°) de cor e uma fraca cor curada foram observados no FC-LOMBO, com uma coloração amarelada pálida descrita pela avaliação sensorial. FC-INT e FC-PERNIL foram correlacionados com os atributos sensoriais do tradicional APRESUNTADO, sendo mais preferidos e com maior intenção de compra do que FC-LOMBO e FC-APARAS. Concluiu-se que o desenvolvimento de produtos curados cozidos a partir de carcaças inteiras (FC-INT) é uma oportunidade potencial para a indústria de cunicultura oferecer produtos tecnológicos de valor agregado e de alta qualidade aos consumidores.
This study aimed to characterize rabbit carcass traits, meat quality, and mechanically deboned meat (MDRM) from New Zealand × Botucatu crossbred rabbits to determine the potential use by the meat industry. Average yields of the carcass (52.46%) and retail hind leg (33.88%), foreleg (15.51%), loin (11.63%), and back (39.83%) cuts were assessed, with total meat-to-bone ratio of 1.65. The meat proximate composition and technological characteristics pH, water retention capacity, and total collagen were similar to meat of commonly market species. Rabbit meat color was light (L* = 65.93) and with a low shade of red (C * = 19.24 and h = 52.79 °) due to the low content of heme pigments (19.89 µg acid hematin/g). The obtained MDRM met the levels of protein and fat required by Brazilian legislation, but a high calcium content (1.45% dry basis). It can be concluded that rabbits represent a viable unconventional meat resource with high potential for use in processing. In addition to raw meat, MDRM can also be obtained to be used as a meat ingredient in industrial products.
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