Abstract
The tomato industry has been searching for new genotypes with improved fruit production, both in the field and industrially processed, together with high-quality performance under sustainable management conditions. This research was carried out in Southern Italy with the aim of assessing the effects of industrial processing on the yield and quality of four tomato hybrids grown according to organic farming methods and addressed at dicing. MAX 14111 and HMX 4228 showed the highest values of field and processing yield as well as reduced sugars and fructose. MAX 14111 had the highest values of total solids and soluble solids, titratable acidity, fiber, energetic value, polyphenols, and also rutin, though not significantly different from Impact. HMX 4228 performed best in terms of sugar ratio, color and naringenin. Concerning the diced products, the sensorial qualities of the four hybrids differed significantly. Total polyphenols, naringenin and rutin in the tomato fruits were higher in the processed than in the raw product. The appreciable fruit yield and quality resulting from both field and processing phase represent a promising perspective for identifying improved tomato genotypes addressed at dicing.
Highlights
Farmers are currently aware that crop systems should be managed achieving high food quality while safeguarding environmental resources
The regular tomato fruit formation and ripeness are closely connected with a proper climatic time course and, an anomalous meteorological course can influence yield, soluble solids content and flavor, depending on genotype [26]
From the research carried out in Southern Italy on processing tomato, it arose that the diced product derived from industrial transformation, when compared with the raw fruits, showed an increase in some important quality parameters, such as total and soluble solids, reduced sugars and antioxidants
Summary
Farmers are currently aware that crop systems should be managed achieving high food quality while safeguarding environmental resources. It is much appreciated due to its richness in health-promoting compounds such as minerals, carotenoids, vitamins, flavonoids, and polyphenols The latter molecules represent a healthy resource for humans and a resistance factor to plant adversity, even during the postharvest life [3]. Some quality attributes are closely connected to genotype, such as the shape and size of fruits, content in lycopene, vitamin C and soluble solids. Each of the latter traits has its own specific heritability and is highly dependent on the expression of the genotype in combination with the environment [6]. Some chromosomal regions influence tomato earliness, in particular the time span between flowering and ripening, and most of parameters, such as the number of days to flowering, days to fruit ripening, and fruit weight, are affected by the growth habitus [8]
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