RESUMO
The aim of the present study was to develop a mixed tropical fruit juice of cashew apple, acerola and melon with low added-sugar content considering sensory and nutritional aspects. Five formulations were developed varying the concentration of the different fruits. A total of 172 consumers rated their overall liking using a 9-point hedonic scale and described their sensory characteristics using a Check-all-that-apply question. In addition, the functional properties of the juices were evaluated by analyzing vitamin C, total phenolic compounds and antioxidant capacity. Results showed that the addition of sugar and fruit composition affected the sensory characteristics and consumer liking of the formulations. Samples without added sugar and with higher melon concentration showed lower liking scores (p < 0.05). In addition, the highest concentration of acerola had a positive effect on nutritional characteristics. The formulation with 50% of fruit pulp (60% of cashew apple, 30% of acerola and 10% of melon), 47% of water, and 3% of added sugar achieved the best results. The effect of aroma on sweetness perception was investigated by adding identical to natural aromas of melon, apple and pineapple to the selected formulation. However, aroma did not significantly modify sweetness perception, evaluated using a rate-all-that-apply question.
Assuntos
Anacardium , Malpighiaceae , Ácido Ascórbico , Comportamento do Consumidor , Frutas , Sucos de Frutas e Vegetais , Odorantes , Açúcares , PaladarRESUMO
Five different concentrations of golden flaxseed flour (0%: F0 (control), 5%: F1, 10%: F2, 15%: F3, 20%: F4) were used as a functional ingredient to replace the fat in chicken burgers. The products were analyzed for moisture, protein, carbohydrate, fat, ash, shear force, consumer acceptance, and their sensory and technological characteristics. The fat, carbohydrate, and protein contents of the raw hamburgers did not differ significantly. An increase in golden flaxseed flour concentration caused a decrease in moisture content and an increase in ash content. The addition of golden flaxseed flour positively affected the technological characteristics and increases in the yield and water retention capacity were observed, together with decreases in shrinkage and mechanical resistance. Formulation F1 presented the highest average acceptance, which did not differ from the F0, and the latter also did not differ from F2. The F3 and F4 formulations differed from the others, with lower average values for acceptance. The check-all-that-apply method revealed that the formulations F0, F1, and F2 were described by sensory terms that corresponded to the desired sensory characteristics. The addition of golden flaxseed flour improved the technological characteristics and the biofunctional potential arising from its bioactive compounds, making it an option as an ingredient for meat products.
Assuntos
Linho/química , Farinha/análise , Produtos da Carne/análise , Aves Domésticas , Adolescente , Adulto , Idoso , Animais , Fenômenos Químicos , Galinhas , Fibras na Dieta/análise , Feminino , Análise de Alimentos , Manipulação de Alimentos , Humanos , Masculino , Pessoa de Meia-Idade , Valor Nutritivo , Sementes , Paladar , Adulto JovemRESUMO
New processing technologies are gaining popularity worldwide due to several advantages related to food safety, shelf life extension, nutritional and sensory quality. However, consumers can be cautious of food products produced using these technologies. In this context, the objectives of the study were to explore consumers' spontaneous associations with fruit juices processed using different technologies, and to study the influence of food technology neophobia on those associations. A study with 423 Brazilian consumers was conducted to evaluate their perception of five types of juices (fresh juice, cold pressed juice, pasteurized juice, pressurized juice and non-pressurized juice) using word association. Participants also answered the Food Technology Neophobia Scale (FTNS) and a series of socio-demographic questions. Results showed that consumers' attitudes towards processing technologies were mainly defined by top-down processes. Fresh, cold pressed and non-pressurized juice were mainly associated with healthy and natural products, whereas concepts including references to processing technologies were associated with processed products and unhealthiness. Food technology neophobia moderated consumers' perceptions of juice processing technologies. Interestingly, consumers with high technology neophobia perceived juices processed by both conventional and innovative technologies more negatively than those with low or medium levels of neophobia.