The objective of this study was, through mixing design and response surface methodology, to optimize a reduced calorie mixed juice of persimmon, orange and pineapple based the sensory and nutritional characteristics. This study also aimed to carry out the survey of the physicochemical characteristics that are desirable in this product. It was found that juice of these fruits, when combined, have better sensory and nutritional characteristics than when isolated. The consumer has a preference for mixed fruit juices made up of orange, pineapple and persimmon that are sweeter and more acidic and regarding color, consumers prefer a juice with less intense red color. According to evaluation, the most recommended mixed juice formulations are 50% pineapple and 50% persimmon, and 33% pineapple, 33% persimmon, and 33% orange.
At the end of the production period of strawberries grown in subtropical regions, postharvest durability is severely diminished due to rising temperatures which compromises the commercialization of fresh fruit. An ideal option would be to process strawberries in the form of preserves, jams, and jellies. Along this line it becomes extremely important to conduct a survey of which cultivars grown in subtropical regions are more suitable for processing in the form of jelly, as well as to understand what the consumer profile is for this product. The objective of this study was to evaluate the influence of different strawberry cultivars grown in subtropical regions of Brazil (Camarosa, Festival, San Andreas, Oso Grande, Camino Real, and Albion) on the physicochemical characteristics, rheological properties and sensory acceptance of the resulting jelly in order to identify cultivars with the greatest potential for industrial use. The strawberry cultivars presented different physicochemical characteristics which resulted in jellies with different physicochemical and rheological characteristics. In this study, however, we verified that all cultivars have potential to be processed in the form of jelly due to good acceptance of all formulations prepared. In general consumers prefer a lighter-colored strawberry jelly, with a less intense red color, more acidic, and less consistent/firm.
Faced with the need to enhance the availability and add even more value to Brazilian native fruits, combined with the demand and the great importance of developing mixed fruit products, the objective of this work was to evaluate the processing potential of jabuticaba, pitanga and cambuci in the preparation of jellies, based on sensory and nutritional characteristics, through desirability-based mixture design. Given the high sensory and nutritional quality of the jellies obtained through this study we found that the development of mixed jelly containing the Brazilian Native fruits jabuticaba, pitanga and cambuci is perfectly feasible and of great interest. According to the sensory and nutritional characteristics the fruit mixed jelly should contain: 40-100% jabuticaba, 0-30% cambuci and 0-20% pitanga.
To increase the availability to consumers and add more value to persimmon (Diospyros kaki L.), which is a very perishable and seasonal fruit and in order to identify which cultivars grown in subtropical regions are more suitable for processing in the form of juice and jelly, as well as understand what the consumer profile is for these products, the objective of this study was to evaluate the influence of different persimmon cultivars (Rama Forte, Mel, Guiombo and Taubaté) grown in subtropical regions of Brazil on the physicochemical characteristics, rheological properties and sensory acceptance of the resulting juice and jelly in order to identify cultivars with the greatest potential for industrial use. The different studied persimmon cultivars had different physical and physicochemical characteristics which resulted in juices and jellies with different physicochemical, rheological and sensory characteristics. Based on sensory acceptance and productivity/ adaptability of persimmon crop in Brazil, the most suitable persimmon cultivars for processing are Rama Forte and Guiombo. In this study it was found that the consumer prefers a more acidic persimmon juice and a less firm or softer, less sweet, clearer and more intense yellow color persimmon jelly.
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