ABSTRACT. Strawberries are berry-type fruits that are very popular and widely consumed all over the world. The sensorial, physical-chemical and nutritional characteristics of strawberries are parameters of quality that influence the choices of consumers. However, these characteristics may be influenced by intrinsic and extrinsic factors that alter the fruit quality. The concentrations of nutrients and other chemical compounds in strawberries may increase and/or decrease according to the cropping system, maturation stage, climatic conditions, and preservation and storage methods. Factors characteristic of the cultivar, such as the genetic profile, may also influence the composition of strawberries. In this context, the objective of this research was to evaluate the sensorial, physical-chemical and nutritional characteristics of different strawberry cultivars to identify the genotype(s) with the best characteristics for commercialization and human consumption. The day-neutral strawberry cultivar "Aromas" and short-day strawberry cultivars "Camarosa, Camino Real, Dover, Sweet Charlie, and Tudla" were cultivated in the Olericultura Sector of the State University of the Midwest (UNICENTRO), Paraná State, Brazil. The fruits were characterized in relation to their physical-chemical, nutritional and sensorial aspects. According to the sensorial profiles, the Camarosa, Camino Real, Dover, and Tudla genotypes showed greater acceptability among consumers. Camarosa, Sweet Charlie, and Tudla presented better physical-chemical characteristics for human consumption, while the cultivars Camarosa, Dover, and Tudla had the best nutritional contents. In general, it is concluded that the genotypes Camarosa and Tudla are the most favourable for human consumption, according to their sensorial, physical-chemical and nutritional characteristics.

Abstract The aim of this study was to characterize the oil obtained from seeds of Campomanesia adamantium by physicochemical quality parameters, oxidative stability, antioxidant activity, quality indexes, optical and thermal stability and its fatty acid profile. These seeds were a relevant source of oil (83 mg g-1) with high potential antioxidant activity (IC50 = 25.32 μg mL-1) evaluated by DPPH (1,1-diphenyl-2-picrylhydrazyl) with induction period above of 50 hours. In addition, palmitic (53%) and oleic (34%) are the primary saturated and monounsaturated fatty acids. This oil showed excellent quality for edible vegetable oil and bioctive compounds. The thermal stability of this oil by thermogravimetric analysis/differential thermogravimetry (TGA/DTG) started at 154 and 231 °C under synthetic air and nitrogen atmospheres, respectively, and by differential scanning calorimetry (DSC) crystallization was onset at 4.94 °C. This study revealed as a novelty that the C. adamantium seeds are an excellent source of oil that presents best qualities, which makes it a great candidate for edible vegetable oil, as well as for production of soap, lotions and biofuel.

Resumo Este trabalho teve como objetivo avaliar a aceitabilidade sensorial de muffin adicionado de diferentes níveis de farinha da casca de jabuticaba, entre crianças. Além disso, determinar a composição físico-química do produto tradicional e daquele com maior teor de farinha de casca de jabuticaba e com aceitação semelhante ao tradicional. Foram elaboradas cinco formulações de muffin: 0% (padrão), 4,5%, 9%, 13,5% e 18% de farinha de casca de jabuticaba. Participaram da avaliação sensorial 65 avaliadores não treinados, de ambos os gêneros, com idade entre 7 e 10 anos. Foram avaliados os teores de umidade, cinzas, proteína, lipídio, carboidrato, calorias e fibra alimentar. As amostras não diferiram significativamente (p > 0,05) para os atributos de aparência, aroma e cor. Sabor, textura, aceitação global e intenção de compra tiveram maiores notas (p < 0,05) para as formulações com 0% e 4,5%, comparadas àquelas com 13,5% e 18% de farinha de casca de jabuticaba. A amostra com 9% foi aquela com maior teor de farinha de casca de jabuticaba e com aceitação semelhante ao muffin tradicional. Maiores teores de umidade, cinzas e fibra alimentar, e menores teores de lipídios e proteínas foram constatados para a formulação com 9%, quando comparada com a formulação padrão. Não houve diferença significativa para os conteúdos de carboidrato e calorias. Conclui-se que um nível de adição de até 9% de farinha da casca de jabuticaba em muffin foi bem aceito pelos avaliadores infantis, obtendo-se aceitação sensorial semelhante ao produto padrão, com bom potencial de comercialização.

Abstract This work aimed to evaluate the sensory acceptance by children of muffins containing different levels of jaboticaba skin flour. It also aimed to determine the physicochemical composition of the traditional product and compare it with that containing the highest level of jaboticaba skin flour showing acceptance similar to that of the traditional muffin. Five muffin formulations containing different levels of jaboticaba skin flour were prepared: 0% (standard), 4.5%, 9%, 13.5% and 18%. A group of 65 untrained tasters of both genders, aged from 7 to 10, took part in the sensory evaluation. The moisture, ash, protein, lipid, carbohydrate, calorie and dietary fibre levels were evaluated. The samples presented no significant alterations ( p > 0.05) for the attributes of appearance, aroma and colour. The formulations containing 0% and 4.5%, received the highest scores (p < 0.05) for flavour, texture and overall acceptance as compared to those with 13.5% and 18% jaboticaba skin flour. The sample with 9% was the one with the highest level of jaboticaba skin flour with acceptance similar to that of the traditional muffins. Higher moisture, ash and dietary fibre levels and lower lipid and protein levels were detected in the formulation with 9%, when compared to the traditional muffins, but there were no significant changes in the carbohydrate and calorie contents. It was concluded that a level of up to 9% jaboticaba skin flour in the muffins was well accepted by the child tasters, achieving a sensory acceptance similar to that of the traditional product and with good commercial potential.