Abstract
Tomato is a fruit rich in bioactive compounds like lycopene, vitamin C and phenolic compounds. However, cultivation conditions can influence the concentration of these substances. In this study, the objective was to analyze quality characteristics of tomato fruits in different cultivation systems. The following characteristics were evaluated: pH, soluble solids content, total acidity, relationship between soluble solids content and total acidity, instrumental color parameters (L *, a *, b *, chroma and hue), texture, bioactive compounds (total carotenoids, lycopene, total phenolic compounds and vitamin C) and antioxidant activity of grape tomato fruits grown in a greenhouse in different systems (soil x substrate). A completely randomized design was used, with two treatments and four replications. The analysis were performed by official methods and in triplicate. The pH, soluble solids, texture, color, lycopene, vitamins C and antioxidant activity were not affected by the cultivation system used. However, grape-type tomatoes grown in substrate showed higher levels of carotenoids (36.31 µg.100 g-1 fresh matter), phenolic compounds (68.37 mg GAE.100 g-1 fresh matter) and ratio between total soluble solids and total acidity (17.90), and lower total acidity (0.58% citric acid 100 g-1), which represents a nutritional, sensorial and functional advantage for the consumer.
Highlights
The cherry and grape tomatoes (Solanum lycopersicum) are among the most popular varieties in the world
Se evaluaron las siguientes características: pH, contenido de sólidos solubles, acidez total, relación entre contenido de sólidos solubles y acidez total, parámetros instrumentales de color (L *, a *, b *, croma y hue), textura, compuestos bioactivos y actividad antioxidante de frutos de tomate del tipo grape cultivados en invernadero en diferentes sistemas
The greenhouse crops cultivated in the soil, hydroponic or with fertigation in substrate, with partial control of the environment allows for an increase in productivity and obtaining better quality products, being considered the most suitable and the most used for the production of the majority of cultivated vegetable species
Summary
The cherry and grape tomatoes (Solanum lycopersicum) are among the most popular varieties in the world. These compounds act directly on the body as antioxidant agents, helping to prevent diseases such as cardiovascular disease, cancer, Parkinson's and Alzeheimer. The greenhouse crops cultivated in the soil, hydroponic or with fertigation in substrate, with partial control of the environment allows for an increase in productivity and obtaining better quality products, being considered the most suitable and the most used for the production of the majority of cultivated vegetable species In this context, the present study aimed to analyze the quality characteristics of tomato fruits in different types of cultivation
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