Sensorial analysis of soybean grains (Glycine max (L.) Merril) roasted by different treatments

A soja tem importância para a saúde e seu consumo tem aumentado devido principalmente aos diversos produtos presentes no mercado. Prevenindo a ação das enzimas lipoxigenases há melhora na aceitação dos produtos derivados da soja. Vários processos tecnológicos podem evitar a ação da enzima lipoxigenase, a qual pode causar atributos sensoriais que causam rejeição no consumo de grãos de soja. A pesquisa teve por objetivo verificar a aceitabilidade dos grãos de soja tostados por diferentes tratamentos. Em grãos de soja previamente macerados, com as cascas retiradas, foram realizados cinco tratamentos: T1 e T2 - com secagem prévia + 10 e 15 minutos de forno, respectivamente; T3, T4 e T5 - sem secagem prévia + 45, 50 e 60 minutos de forno. O T6, controle, recebeu o mesmo tratamento, foi seco em estufa (55 °C) durante 31 horas. O comportamento dos provadores em relação ao consumo da soja não condiz com o conhecimento da importância para a saúde e a facilidade de aquisição do hábito de consumo, não havendo diferença para idade ou sexo. O tratamento que promoveu a maior aceitabilidade dos grãos de soja tostados foi o que recebeu o tempo intermediário de 50 minutos, sem secagem prévia.Soybeans have been gaining prominence due to their potential benefits to health, Nonetheless, the presence of lipoxygenase in the grains can lead to low acceptance. Several processes have been used to improve the acceptance of grain. Different processes result in products with various sensory characteristics. The aim of this research was to check the acceptability of roasted soybeans using different treatments. Soybeans previously macerated and removed from the shell were subjected to five treatments: T1 and T2 - with pre-drying + 10 and 15 minutes in the oven, respectively; T3, T4, and T5 - without pre-drying + 45, 50, and 60 minutes in the oven. The control was dried in an oven (55 °C) for 31 hours. The panelists' response in relation to consumption of soybean does not agree with its importance to health and with the easy changing of the consumption habits with no differences regarding age or sex. The treatment that promoted the greatest acceptability of roasted soybeans was the 50- minute group without pre-drying.FAPES

Avaliação química e sensorial de ovos obtidos por diferentes tratamentos Chemical and sensorial evaluation of eggs obtained by different production systems

Os ovos estão entre os produtos mais importantes economicamente no país, e sua maneira de produção apresenta diferentes opções. A pesquisa teve por objetivo avaliar, química e sensorialmente, ovos obtidos pela forma tradicional, semi-orgânica e orgânica. Foram coletados 144 ovos convencionais brancos e vermelhos, semi-orgânicos e orgânicos, nos locais de produção. As análises químicas de composição centesimal e minerais foram realizadas. O teor de retinol, alfa e beta caroteno foi determinado por cromatografia líquida de alta eficiência. Foram realizados teste hedônico e teste de ordenação. O delineamento experimental foi em blocos completos casualizados. Foi realizado teste de Tukey (p < 0,05) e qui-quadrado. Para as análises químicas não houve diferença quanto aos teores de umidade, cinzas, carboidratos e ferro, porém houve diferença (p < 0,05) para proteínas, lipídios, cálcio e magnésio. Para o retinol não houve diferença significativa e não foram detectados alfa e beta caroteno. Para o teor de colesterol houve diferença significativa, mas para a análise sensorial não. Portanto, o manejo influencia tanto no teor de proteína e lipídeos quanto no cálcio e magnésio, assim como no teor de colesterol das gemas, porém, não altera os teores de vitamina A e as características sensoriais.<br>Eggs are a very important economic product for the country and the production system presents different options. The research had the objective of evaluating, chemically and sensorially, eggs from traditional, semi-organic and organic systems. One hundred and forty four white and red traditional, semi-organic and organic eggs were collected at their production site. Chemical analyses of proximal composition and minerals were carried out. Retinol, alpha and beta carotene contents were determined by high performance liquid chromatography. Hedonic and ordination tests were carried out. The experimental design was in complete random blocks. Results were submitted to Tukey (p < 0.05) and chi-square tests. Chemical analyses did not exhibit differences for water, ash, carbohydrate and iron, however there were differences (p < 0.05) for protein, lipids, calcium and magnesium. Retinol contents did not present significant differences and alpha and beta carotene were not detected. Cholesterol contents presented significant differences, but the sensory analysis did not. Hence, the production system alters protein, lipid, magnesium, calcium and cholesterol contents, but does not alter vitamin A and sensorial characteristics

Use of cereal bars with quinoa (Chenopodium quinoa W.) to reduce risk factors related to cardiovascular diseases

Quinoa is considered a pseudocereal with proteins of high biological value, carbohydrates of low glycemic index, phytosteroids, and omega-3 and 6 fatty acids that bring benefits to the human health. The purpose of this study was to investigate the effects of quinoa on the biochemical and anthropometric profile and blood pressure in humans, parameters for measuring risk of cardiovascular diseases. Twenty-two 18 to 45-year-old students were treated daily for 30 days with quinoa in the form of a cereal bar. Blood samples were collected before and after 30 days of treatment to determine glycemic and biochemical profile of the group. The results indicated that quinoa had beneficial effects on part of the population studied since the levels of total cholesterol, triglycerides, and LDL-c showed reduction. It can be concluded that the use of quinoa in diet can be considered beneficial in the prevention and treatment of risk factors related to cardiovascular diseases that are among the leading causes of death in today's globalized world. However, further studies are needed to prove the benefits observed