Abstract
In this paper, comparative study on fresh and frozen tomatoes of organic and conventionally cultivated crops was performed. Fruits of tomato cv. Rio Grande© were used and stored at 18°C for 12 months. Quality parameters of ascorbic acid, lycopene, β-carotene, glucose, fructose and proteins, pH, color, acidity, water-soluble solids, and elements and azoxystrobine were measured. The results showed that amount of ascorbic acid and β-carotene were similar in organic and conventional fresh tomatoes, but lycopene was found higher in conventional ones. Na and Mg were higher in conventional samples, but P, K, Ca, and Cu were higher in organic tomatoes. Organic samples were pesticide free, however, conventional fresh and 3 month stored tomatoes contained pesticides. Nitrite was not detected in any sample. These results show that organic products are healthier. Organic fresh tomatoes got the highest scores in sensory analyses. Practical applications Tomato is one of the most consumed fruits in the world. A comparative study was performed between organic and conventionally cultivated tomato fruits, in terms of some physicochemical and secondary metabolites for measure their quality properties and also investigated of effects on storage period both of the types of tomatoes. The results showed that serious reductions were observed after 12 month of storage at −18ºC in fruit quality criteria and antioxidant compounds, as well as nutritional parameters. Therefore, it can be recommended that conventional and organic tomatoes should not be stored longer than 9 months. Nutritive products with high yield and quality can be obtained through the optimization of controllable conditions. Further researches are needed about the effect of cultural practices such as irrigation and fertilization on the quality and nutritional value of fruit, both in organic and conventional growing systems.
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Claims 10
Claim · model-written summary
Ascorbic acid and β-carotene amounts were similar in organic and conventional fresh tomatoes.
- Taxon
- tomato
Solanum lycopersicume0 - Outcome
- amount of ascorbic acid and β-carotenee0
- Direction
- similare0
- Comparator
- conventional fresh tomatoese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amount of ascorbic acid and β-carotene were similar in organic and conventional fresh tomatoes”
Claim · model-written summary
Lycopene was higher in conventional fresh tomatoes.
- Taxon
- tomatoesSolanum lycopersicumt0
- Outcome
- lycopenee0
- Direction
- highere0
- Comparator
- conventional onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomatoes”
e0“lycopene was found higher in conventional ones”
Claim · model-written summary
Na and Mg were higher in conventional samples.
- Taxon
- tomatoesSolanum lycopersicumt0
- Outcome
- Na and Mge0
- Direction
- highere0
- Comparator
- conventional samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomatoes”
e0“Na and Mg were higher in conventional samples”
Claim · model-written summary
P, K, Ca, and Cu were higher in organic tomatoes.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- P, K, Ca, and Cue0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P, K, Ca, and Cu were higher in organic tomatoes”
Claim · model-written summary
Organic samples were pesticide free.
- Taxon
- tomatoesSolanum lycopersicumt0
- Outcome
- pesticide freee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomatoes”
e0“Organic samples were pesticide free”
Claim · model-written summary
Pesticides were present in conventional fresh and 3 month stored tomatoes.
- Taxon
- tomatoesSolanum lycopersicume0
- Organ / stage
- fresh and 3 month storede0
- Outcome
- contained pesticidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional fresh and 3 month stored tomatoes contained pesticides”
Claim · model-written summary
Nitrite was not detected in any sample.
- Taxon
- tomatoesSolanum lycopersicumt0
- Outcome
- Nitrite was not detectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomatoes”
e0“Nitrite was not detected in any sample”
Claim · model-written summary
Organic fresh tomatoes received the highest sensory scores.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- scores in sensory analysese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic fresh tomatoes got the highest scores in sensory analyses”
Claim · model-written summary
Twelve months of frozen storage seriously reduced fruit quality criteria, antioxidant compounds and nutritional parameters.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- 12 month of storage at −18ºCe0
- Outcome
- fruit quality criteria and antioxidant compounds, as well as nutritional parameterse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomatoes”
e0“serious reductions were observed after 12 month of storage at −18ºC in fruit quality criteria and antioxidant compounds, as well as nutritional parameters”
Claim · model-written summary
The authors recommend storing conventional and organic tomatoes no longer than 9 months.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- should not be stored longer than 9 monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional and organic tomatoes should not be stored longer than 9 months”
The same questions in other papers
storage · quality: grain · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.