Substituição da farinha de trigo por farinha de banana verde na elaboração de biscoito tipo cookie / Replacement of wheat flour with green banana flour in the preparation of a Cookie

Devido à existência de poucos produtos panificados – especialmente o cookie – com elevada qualidade nutricional, o objetivo desse trabalho foi elaborar biscoito tipo cookie com substituição total e parcial da farinha de trigo pela farinha de banana verde (FBV). Foram elaboradas 3 formulações, formulação 1 (com 100% de farinha de trigo), formulação 2 (50% de farinha de trigo e 50% de FBV) e formulação 3 (100% de FBV). (Os biscoitos foram avaliados quanto aos parâmetros físico-químicos (pH, acidez, umidade, cinzas e lipídeos) e sensoriais. Verificou-se uma alteração significativa entre as formulações para as características físico-químicas, exceto para lipídeos. O biscoito enriquecido com 100% de farinha de banana verde obteve melhor aceitação em relação aos atributos sensoriais analisados. Considerando os benefícios devido sua riqueza nutricional e que a produção da farinha de banana verde favorece à redução das perdas pós-colheita, salientamos que a FBV é uma boa alternativa para a substituição da farinha de trigo em formulações convencionais, tendo em vista seu valor nutricional e por não alterar negativamente as características sensoriais do produto final.

Desenvolvimento e avaliação sensorial de pão de forma adicionado da farinha do resíduo da graviola

Bread is a product widely consumed since ancient times, so many scholars seek to create new formulations that give them more flavor and nutritional quality through the full reuse of food. Soursop is rich in minerals such as calcium, potassium, magnesium and vitamins (A, B and C). Thus, the objective was to elaborate loaves of bread added with different concentrations of soursop residue flour, as well as to evaluate the sensory characteristics of the elaborated products. Initially the soursop peels were dried in a 60 ° C circulating oven for 24 hours and then flour was obtained. Then different formulations of loaves of bread were prepared: PFC (0% soursop residue flour), PF10% (10% soursop residue flour) and PF20% (20% soursop residue flour). Sensory analysis was performed using the affective test with a nine-point structured hedonic scale and the purchase intention test. From the results, it was inferred that in the sensory analysis, the PFC sample had an acceptability higher than 80% for all evaluated attributes, while the PF10% bread had an acceptability index higher than 73% and the PF20% bread reached acceptability index. over 66% for all appreciated attributes. Therefore, it was found that it is possible to partially replace wheat flour with soursop residue flour in the production of loaf breads, since PF10% was not affected by the addition of flour.El pan es un producto ampliamente consumido desde la antigüedad, por lo que muchos académicos buscan crear nuevas formulaciones que les den más sabor y calidad nutricional a través de la reutilización completa de los alimentos. La guanábana es rica en minerales como calcio, potasio, magnesio y vitaminas (A, B y C). Por lo tanto, el objetivo era elaborar barras de pan añadidas con diferentes concentraciones de harina de residuos de guanábana, así como evaluar las características sensoriales de los productos elaborados. Inicialmente, las cáscaras de guanábana se secaron en un horno de circulación a 60 ° C durante 24 horas y luego se obtuvo harina. Luego se prepararon diferentes formulaciones de barras de pan: PFC (0% de harina de residuos de guanábana), PF10% (10% de harina de residuos de guanábana) y PF20% (20% de harina de residuos de guanábana). El análisis sensorial se realizó mediante la prueba afectiva con una escala hedónica estructurada de nueve puntos y la prueba de intención de compra. A partir de los resultados, se infirió que en el análisis sensorial, la muestra de PFC tenía una aceptabilidad superior al 80% para todos los atributos evaluados, mientras que el pan PF10% tenía un índice de aceptabilidad superior al 73% y el pan PF20% alcanzó un índice de aceptabilidad. más del 66% para todos los atributos apreciados. Por lo tanto, se descubrió que es posible reemplazar parcialmente la harina de trigo con harina de residuos de guanábana en la producción de pan de molde, ya que el PF10% no se vio afectado por la adición de harina.O pão é um produto amplamente consumido desde os tempos mais remotos, por isso diversos estudiosos buscam criar novas formulações que lhes confiram mais sabor e qualidade nutricional através do reaproveitamento integral dos alimentos. A graviola é rica em sais minerais, como cálcio, potássio, magnésio e vitaminas (A, B e C). Assim, objetivou-se elaborar pães de forma adicionados de diferentes concentrações da farinha do resíduo da graviola, bem como avaliar as características sensoriais dos produtos elaborados. Inicialmente as cascas da graviola foram secas em estufa de circulação de ar a 60° durante 24 horas e após foi obtida a farinha. Em seguida, foram elaboradas diferentes formulações de pães de forma: PFC (0% de farinha do resíduo da graviola), PF10% (10% de farinha do resíduo da graviola) e PF20% (20% da farinha do resíduo da graviola). A análise sensorial foi realizada através do teste afetivo com escala hedônica estruturada de nove pontos e teste de intenção de compra. Diante dos resultados, inferiu-se que na análise sensorial, a amostra PFC obteve aceitabilidade superior a 80% para todos os atributos avaliados, enquanto que o pão PF10% apresentou índice de aceitabilidade superior a 73% e o pão PF20% alcançou índice de aceitabilidade acima de 66% para todos atributos apreciados. Diante disso, constatou-se que é possível substituir parcialmente a farinha de trigo por farinha do resíduo da graviola na produção de pães tipo forma, visto que o PF10% não teve a sua aceitabilidade afetada em razão a adição da farinha

Colorimetric and sensory characteristics of fermented cured sausage with Brazilian ostrich meat addition

The aim of this study was to determine the colorimetric and sensory characteristics of a fermented cured sausage containing ostrich meat (Struthio camelus) and pork meat. Four treatments were performed: one with no ostrich meat (TC) and the others containing 19.08 (T1), 38.34 (T2), and 57.60% (T3) of ostrich meat and pork meat. Colorimetric analyses were measuring L*, a*, b*, C*, and hº. Sensory analysis was conducted assessing color, aroma, flavor, and texture at the end of the sausages' processing. The sausages containing ostrich meat were statistically different from the control in the instrumental colorimetric analysis. In the sensory analysis, no significant differences were observed between the treatments for aroma, flavor, and texture. However, significant differences were found in the color of the sausages due to the high myoglobin content present in the ostrich meat, which resulted in a very dark color in the treatment with the highest percentage of this type of meat

Extraction of bioactive compounds of lemongrass, antioxidant activity and evaluation of antimicrobial activity in fresh chicken sausage

ABSTRACT: The aim of this work was to determine the best extraction condition of bioactive compounds from lemongrass (Cymbopogon citratus), using the conventional method and ultrasonic assisted extraction, varying the temperature, in order to evaluate the antioxidant activity and the antimicrobial activity of the extract with higher antioxidant power in fresh chicken sausages during the storage period. The extracts were obtained by the conventional method (solvent extraction) and by ultrasound assisted extraction, varying the temperature (20°C, 40°C and 60°C). Phenolic compounds, total flavonoids and antioxidant activity were measured by the DPPH, FRAP, ORAC methods. Conventional extraction and ultrasound methods influenced the phenolic and total flavonoid content at all tested temperatures. Conventional and ultrasonic methods did not influence the IC50 at temperatures of 40°C and 60°C. The antioxidant activity by the DPPH method and by the FRAP method was superior in the conventional method at the temperature of 60°C, however by the ORAC method the best results were in the extraction by ultrasound. The results demonstrate that the conventional extraction at 60ºC was better to obtain extracts of lemongrass with greater amount of bioactive compounds. The antimicrobial capacity evaluated in sausage of fresh chicken showed that in the concentration of 1.0% of the extract protected the product as the growth of mesophilic aerobes and against the growth of psychrotrophic bacteria. Lemongrass can be considered as a natural alternative to obtain extracts rich in bioactive compounds, with antioxidant activity and high antimicrobial capacity

Preparation and microbiological analysis of Tuscan sausage with added propolis extract

Abstract The aim of this study was to obtain hydroethanolic extract of propolis by extraction, assisted by focused microwave, and to apply it in Tuscan-style sausage. The extract was used at concentrations of 0.5%, 1.0% and 2.0% (w/v) in the manufacture of the sausage, which was then analyzed in cold storage at 4 °C for 56 days. The following analyses were performed: mesophilic and psychotrophic organisms; coliforms at 35 and 45 °C; positive and negative-coagulase Staphylococcus, sulfite-reducing Clostridium, and Salmonella spp. The results were below the limits established by the Brazilian legislation, with some changes at the end of the study. Consequently, propolis extract prolonged the shelf life of the Tuscan-style sausage for 56 days and it is therefore an ingredient that can be potentially used in the preparation of this product

Ultrasonic assisted extraction to obtain bioactive, antioxidant and antimicrobial compounds from marcela

<div><p>ABSTRACT: The aim of this study was to evaluate the effect of extraction conditions on bioactive compounds, as well as on antioxidant activity, and the antimicrobial activity of the extracts with the highest antioxidant characteristics. The extracts were obtained by conventional method and ultrasound-assisted extraction at various temperatures (20°C, 40°C and 60°C). Total phenolics, total flavonoids, antimicrobial activity and antioxidant activity were quantified by the methods of DPPH, FRAP, and ORAC, respectively. The conventional extraction method and ultrasound method influenced the phenolic content at all the tested temperatures. Flavonoids were not influenced by extraction methods. The antioxidant activity (DPPH) was highest in the ultrasonic method at temperatures of 40°C and 60°C; however, in the case of the FRAP method the best results were for the conventional extraction method. The conventional and ultrasonic methods did not influence the IC50 at temperatures of 20°C and 40°C, but using ORAC the antioxidant activity was influenced by the methods at all temperatures. The extract obtained at 60°C by the ultrasound method had high antimicrobial action in relation to the strains of Salmonella sp., Escherichia coli, and Staphylococcus aureus. Extraction ultrasonic-assisted can be considered adequate to obtain extracts of marcela, which are rich in bioactive compounds with high antioxidant activity.</p></div

Desenvolvimento e avaliação sensorial de pão de forma adicionado da farinha do resíduo da graviola

Bread is a product widely consumed since ancient times, so many scholars seek to create new formulations that give them more flavor and nutritional quality through the full reuse of food. Soursop is rich in minerals such as calcium, potassium, magnesium and vitamins (A, B and C). Thus, the objective was to elaborate loaves of bread added with different concentrations of soursop residue flour, as well as to evaluate the sensory characteristics of the elaborated products. Initially the soursop peels were dried in a 60 ° C circulating oven for 24 hours and then flour was obtained. Then different formulations of loaves of bread were prepared: PFC (0% soursop residue flour), PF10% (10% soursop residue flour) and PF20% (20% soursop residue flour). Sensory analysis was performed using the affective test with a nine-point structured hedonic scale and the purchase intention test. From the results, it was inferred that in the sensory analysis, the PFC sample had an acceptability higher than 80% for all evaluated attributes, while the PF10% bread had an acceptability index higher than 73% and the PF20% bread reached acceptability index. over 66% for all appreciated attributes. Therefore, it was found that it is possible to partially replace wheat flour with soursop residue flour in the production of loaf breads, since PF10% was not affected by the addition of flour.O pão é um produto amplamente consumido desde os tempos mais remotos, por isso diversos estudiosos buscam criar novas formulações que lhes confiram mais sabor e qualidade nutricional através do reaproveitamento integral dos alimentos. A graviola é rica em sais minerais, como cálcio, potássio, magnésio e vitaminas (A, B e C). Assim, objetivou-se elaborar pães de forma adicionados de diferentes concentrações da farinha do resíduo da graviola, bem como avaliar as características sensoriais dos produtos elaborados. Inicialmente as cascas da graviola foram secas em estufa de circulação de ar a 60° durante 24 horas e após foi obtida a farinha. Em seguida, foram elaboradas diferentes formulações de pães de forma: PFC (0% de farinha do resíduo da graviola), PF10% (10% de farinha do resíduo da graviola) e PF20% (20% da farinha do resíduo da graviola). A análise sensorial foi realizada através do teste afetivo com escala hedônica estruturada de nove pontos e teste de intenção de compra. Diante dos resultados, inferiu-se que na análise sensorial, a amostra PFC obteve aceitabilidade superior a 80% para todos os atributos avaliados, enquanto que o pão PF10% apresentou índice de aceitabilidade superior a 73% e o pão PF20% alcançou índice de aceitabilidade acima de 66% para todos atributos apreciados. Diante disso, constatou-se que é possível substituir parcialmente a farinha de trigo por farinha do resíduo da graviola na produção de pães tipo forma, visto que o PF10% não teve a sua aceitabilidade afetada em razão a adição da farinha.El pan es un producto ampliamente consumido desde la antigüedad, por lo que muchos académicos buscan crear nuevas formulaciones que les den más sabor y calidad nutricional a través de la reutilización completa de los alimentos. La guanábana es rica en minerales como calcio, potasio, magnesio y vitaminas (A, B y C). Por lo tanto, el objetivo era elaborar barras de pan añadidas con diferentes concentraciones de harina de residuos de guanábana, así como evaluar las características sensoriales de los productos elaborados. Inicialmente, las cáscaras de guanábana se secaron en un horno de circulación a 60 ° C durante 24 horas y luego se obtuvo harina. Luego se prepararon diferentes formulaciones de barras de pan: PFC (0% de harina de residuos de guanábana), PF10% (10% de harina de residuos de guanábana) y PF20% (20% de harina de residuos de guanábana). El análisis sensorial se realizó mediante la prueba afectiva con una escala hedónica estructurada de nueve puntos y la prueba de intención de compra. A partir de los resultados, se infirió que en el análisis sensorial, la muestra de PFC tenía una aceptabilidad superior al 80% para todos los atributos evaluados, mientras que el pan PF10% tenía un índice de aceptabilidad superior al 73% y el pan PF20% alcanzó un índice de aceptabilidad. más del 66% para todos los atributos apreciados. Por lo tanto, se descubrió que es posible reemplazar parcialmente la harina de trigo con harina de residuos de guanábana en la producción de pan de molde, ya que el PF10% no se vio afectado por la adición de harina