Presented diploma work is focused on study of antioxidants in different kinds of dried fruits. Analyses of ascorbate, tocopherols, carotenoids and flavonoids were performed using RP-HPLC with spectrophotometric detection. Analysis of dried fruits showed high level of vitamins and phenolocs mainly in berries. High level of carotenoids was observed in dried apricots and plums. Further, antioxidant activity of dried fruit extracts was tested by ABTS method. High antioxidant activity was found mainly in dried apples, cranberries and blueberries. The biological test with yeast Sascharomyces cerevisiae D7 was used for the analysis of antimutagenic efects of dried fruits. High antimutagenic activity exhibited dried cranberries and blueberries. Most of tested dried fruits with high antimutagenic effect exhibited also high antioxidant activity as well as high content of some antioxidants. No direct correlation was found among these parameters. Last part of this work was focused on study of influence of drying on antioxidant content in two types of apples. Drying at mild controlled conditions exhibited no significant negative effect on active substance content; in some samples their concentration was observed.

Direct sun drying is one of the oldest methods of food preservation. A drying method that utilizes solar energy while minimizing negative aspects of sun drying is a solar dryer. However, research about the quality characteristics of fruits and vegetables dried using a solar dryer compared to a traditional dryer is lacking. To measure this, apple, tomato and carrot slices, and grape halves and whole peas were prepared and dried using either a solar or FA dehydrator (FA), Consumer liking was measured using two sensory panels that asked panelists 9-point hedonic questions between like products. Quality differences were analyzed using a TA.XT2 texture analyzer. Color was measured using a Hunterlab colorimeter. There were no significant differences in consumer liking (p<0.05) between drying methods for any fruits and vegetables with regards to overall acceptability. Grapes, tomatoes and carrots all had significant differences in consumer liking with regards to appearance, which correlates well with observed differences in a* values. Consumers liked the aroma of solar-dried peas significantly more. The texture of FA grapes was liked significantly more than their solar counterparts, which likely contributed to consumers significantly ranking the FA grapes higher than their solar counterparts when asked to rank which one they prefer.

El trabajo de investigación se basa principalmente en el desarrollo de la marca Wayu, la cual consiste en la producción y comercialización vía online y en tiendas especializadas de granola de cereales andinos con fruta liofilizada. Esto en respuesta a la problemática de no encontrar un snack saludable que brinde las energías necesarias para realizar sus actividades diarias a nuestro público objetivo, el cual está compuesto por hombres y mujeres entre 18 y 35 años de Lima Metropolitana de los niveles socioeconómicos A y B que llevan un estilo de vida saludable. Para ello, el trabajo busca solucionar la problemática de nuestros consumidores mientras que consideramos una cuota de responsabilidad social al trabajar de cerca con las comunidades andinas de la zona Puerto Inca de Huancayo. Los experimentos realizados nos permitieron validar la intención de los consumidores finales mediante sus comentarios en las publicaciones de redes sociales y mensajes directos, asimismo, se validó el interés por parte de las tiendas especializadas de contar con nuestro producto como parte de su catálogo de bienes ofrecido al público objetivo que apuntamos. La estructura del trabajo se divide inicialmente en la descripción de la problemática a solucionar y el respectivo diseño del modelo del negocio. Todas las fases del trabajo llegan a un punto en común: justificar la viabilidad del negocio. Por último, se quiere demostrar si la inversión del proyecto puede ser recuperada en el tiempo trazado. / The research work is mainly based on the development of the Wayu brand, which consists of the production and mainly online and in specialized stores of Andean cereal granola with lyophilized fruit. This in response to the problem of not finding a healthy snack that provides the calories necessary to carry out their daily activities to our target audience, which is composed of men and women between 18 and 35 years of Metropolitan Lima from socioeconomic levels A and B who leads a healthy lifestyle. For this, the work seeks to solve the problems of our consumers while we consider a share of social responsibility when working near the Andean communities in the Puerto Inca area of Huancayo. The experiments carried out allow us to validate the intention of the final consumers through their comments in the social media publications and direct messages, specifically, the interest on the part of the specialized stores to have our product as part of their catalog of offered goods is validated. the target audience we are targeting. The work structure is divided into the description of the problem to be solved and the respective design of the business model. All the phases of the work to a common point: justify the viability of the business. Finally, it is wanted to demonstrate if the investment of the project can be recovered in the plotted time. / Trabajo de investigación

El trabajo de investigación se basa principalmente en el desarrollo de la marca Wayu, la cual consiste en la producción y comercialización vía online y en tiendas especializadas de granola de cereales andinos con fruta liofilizada. Esto en respuesta a la problemática de no encontrar un snack saludable que brinde las energías necesarias para realizar sus actividades diarias a nuestro público objetivo, el cual está compuesto por hombres y mujeres entre 18 y 35 años de Lima Metropolitana de los niveles socioeconómicos A y B que llevan un estilo de vida saludable. Para ello, el trabajo busca solucionar la problemática de nuestros consumidores mientras que consideramos una cuota de responsabilidad social al trabajar de cerca con las comunidades andinas de la zona Puerto Inca de Huancayo. Los experimentos realizados nos permitieron validar la intención de los consumidores finales mediante sus comentarios en las publicaciones de redes sociales y mensajes directos, asimismo, se validó el interés por parte de las tiendas especializadas de contar con nuestro producto como parte de su catálogo de bienes ofrecido al público objetivo que apuntamos. La estructura del trabajo se divide inicialmente en la descripción de la problemática a solucionar y el respectivo diseño del modelo del negocio. Todas las fases del trabajo llegan a un punto en común: justificar la viabilidad del negocio. Por último, se quiere demostrar si la inversión del proyecto puede ser recuperada en el tiempo trazado.