Abstract
BACKGROUND: Tomato fruits contain a high level of antioxidants such as vitamin C, polyphenols (including flavonoids), and carotenoids (such as lycopene and β-carotene). Some studies have shown the higher level of bioactive compounds in organically produced tomato fruits compared to conventional ones, but not all studies were consistent in this respect. The levels of carotenoids and phenolics are very variable and may be affected by ripeness, genotype and cultivation. The aim of the study was to compare the effects of organic and conventional production systems on chemical properties and phenolic compounds of two tomato types (standard and cherry). The experiment was carried out in two growing seasons of 2008 and 2009, and in three organic and three conventional farms. RESULTS: The results obtained have shown that, in 2008, organic tomatoes presented a higher ratio of reducing sugars/organic acids, and contained significantly more total sugars, vitamin C and total flavonoids, 3-quercetin rutinoside, and myricetin in comparison with the conventional fruits. In 2009, organic tomatoes contained significantly more vitamin C, quercetin-3-O-glucoside and chlorogenic acid, myricetin and kaempferol in comparison with the conventional fruits. CONCLUSIONS: The organic growing system affects tomato quality parameters such as nutritional value and phenolic compound content. The second significant factor of nutritional value of tomato is the type of fruits. It would be necessary to continue this study as a long-term experiment in order to eliminate the influence of seasonality.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
In 2008 organic tomatoes had a higher reducing-sugars to organic-acids ratio.
- Taxon
- tomatoes
Solanum lycopersicume0 - Treatment
- organice0
- Outcome
- ratio of reducing sugars/organic acidse0
- Direction
- highere0
- Qualifier
- 2008e0
- Comparator
- conventional fruitse0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2008, organic tomatoes presented a higher ratio of reducing sugars/organic acids, and contained significantly more total sugars, vitamin C and total flavonoids, 3-quercetin rutinoside, and myricetin in comparison with the conventional fruits.”
Claim · model-written summary
In 2008 organic tomatoes contained significantly more total sugars, vitamin C and total flavonoids than conventional fruit.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- organice0
- Outcome
- total sugars, vitamin C and total flavonoidse0
- Direction
- moree0
- Qualifier
- 2008e0
- Comparator
- conventional fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2008, organic tomatoes presented a higher ratio of reducing sugars/organic acids, and contained significantly more total sugars, vitamin C and total flavonoids, 3-quercetin rutinoside, and myricetin in comparison with the conventional fruits.”
Claim · model-written summary
In 2008 organic tomatoes contained significantly more 3-quercetin rutinoside and myricetin.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- organice0
- Outcome
- 3-quercetin rutinoside, and myricetine0
- Direction
- moree0
- Qualifier
- 2008e0
- Comparator
- conventional fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 2008, organic tomatoes presented a higher ratio of reducing sugars/organic acids, and contained significantly more total sugars, vitamin C and total flavonoids, 3-quercetin rutinoside, and myricetin in comparison with the conventional fruits.”
Claim · model-written summary
In 2009 organic tomatoes contained significantly more vitamin C, quercetin-3-O-glucoside and chlorogenic acid.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- organice0
- Outcome
- vitamin C, quercetin-3-O-glucoside and chlorogenic acide0
- Direction
- moree0
- Qualifier
- 2009e0
- Comparator
- conventional fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2009, organic tomatoes contained significantly more vitamin C, quercetin-3-O-glucoside and chlorogenic acid, myricetin and kaempferol in comparison with the conventional fruits.”
Claim · model-written summary
In 2009 organic tomatoes contained significantly more myricetin and kaempferol.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- organice0
- Outcome
- myricetin and kaempferole0
- Direction
- moree0
- Qualifier
- 2009e0
- Comparator
- conventional fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2009, organic tomatoes contained significantly more vitamin C, quercetin-3-O-glucoside and chlorogenic acid, myricetin and kaempferol in comparison with the conventional fruits.”
Claim · model-written summary
Fruit type was a significant factor in tomato nutritional value.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- type of fruitse0
- Outcome
- nutritional valuee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The second significant factor of nutritional value of tomato is the type of fruits.”
The same questions in other papers
cultivation system · quality: sugar starch · Solanum lycopersicum (tomato)Results differ
11 papers in the same direction as this paper · 2 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- positive
- positive
13 papers more in this group
See all 17 papers →cultivation system · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- positive
12 papers more in this group
See all 16 papers →cultivation system · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results
14 papers in the same direction as this paper · 1 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- no effect
- positive
16 papers more in this group
See all 20 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.