Abstract
The present investigation is one part of a research work on the agricultural and processing factors affecting the quality characteristics of processed tomato products specially juice and paste. This study concerned on the influence of fertilization rate of tomato crop with potassium humate on the quality characteristics of tomato fruits based on their chemical composition and functional compounds. A field experiment was conducted on tomato cultivar; (SV 8320 TD’ F1 Hybrid) were treated with potassium humate at the levels of 25, 50 and 75 kg/Fed. Chemical analysis of the full ripe tomato fruits showed that fertilization with potassium humate slightly improved the fruit contents of total solids, total soluble solids sugars and ash while, total acidity, pH, protein and fat showed no changes. Moreover, the improving effect of fertilization was more pronounced on tomato contents of the functional compounds. It was found that vitamin C, total carotenoids, lycopene, β- carotene, flavonoids and phenolic compounds considerably increased due to fertilization with potassium humate. The improving effect was more pronounced at the high levels of potassium humate. The antioxidant activity of tomato fruits was also improved as a result of fertilization with potassium humate.
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Claims 6
Claim · model-written summary
Potassium humate slightly improved total solids, soluble solids sugars and ash contents in ripe tomato fruit.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- full ripe tomato fruitse0
- Treatment
- fertilization with potassium humatee0
- Outcome
- fruit contents of total solids, total soluble solids sugars and ashe0
- Direction
- slightly improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical analysis of the full ripe tomato fruits showed that fertilization with potassium humate slightly improved the fruit contents of total solids, total soluble solids sugars and ash while, total acidity, pH, protein and fat showed no changes.”
Claim · model-written summary
Potassium humate caused no reported change in total acidity, pH, protein or fat.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- fertilization with potassium humatee0
- Outcome
- total acidity, pH, protein and fate0
- Direction
- no changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical analysis of the full ripe tomato fruits showed that fertilization with potassium humate slightly improved the fruit contents of total solids, total soluble solids sugars and ash while, total acidity, pH, protein and fat showed no changes.”
Claim · model-written summary
Potassium humate considerably increased vitamin C, total carotenoids and lycopene in tomato fruit.
- Treatment
- fertilization with potassium humatee0
- Outcome
- vitamin C, total carotenoids, lycopenee0
- Direction
- considerably increasede0
Not reportedTaxonComparator
Verbatim
e0“It was found that vitamin C, total carotenoids, lycopene, β- carotene, flavonoids and phenolic compounds considerably increased due to fertilization with potassium humate.”
t0“Tomato Fruits”
Claim · model-written summary
Potassium humate considerably increased β-carotene, flavonoids and phenolic compounds in tomato fruit.
- Treatment
- fertilization with potassium humatee0
- Outcome
- β- carotene, flavonoids and phenolic compoundse0
- Direction
- considerably increasede0
Not reportedTaxonComparator
Verbatim
e0“It was found that vitamin C, total carotenoids, lycopene, β- carotene, flavonoids and phenolic compounds considerably increased due to fertilization with potassium humate.”
t0“Tomato Fruits”
Claim · model-written summary
Improvements were more pronounced at high potassium humate levels.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- high levels of potassium humatee0
- Outcome
- improving effecte0
- Direction
- more pronouncede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The improving effect was more pronounced at the high levels of potassium humate.”
t0“Tomato Fruits”
Claim · model-written summary
Potassium humate fertilization improved tomato fruit antioxidant activity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- fertilization with potassium humatee0
- Outcome
- antioxidant activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antioxidant activity of tomato fruits was also improved as a result of fertilization with potassium humate.”
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