Abstract
Background. The world literature provides information about the effect of biostimulants on the biological value of broccoli immediately after harvesting, but there is little information how the quality of broccoli heads changes during storage in plants treated with biostimulants during cultivation. Therefore, the aim of this study was to evaluate the influence of an amino acid biostimulant and Ascophyllum nodosum filtrate on the content of phenolic compounds in broccoli heads – in fresh vegetables and in the ones stored for three days at room temperature. Material and methods. The study was carried out on one broccoli cultivar: ‘Tiburon’. There were plants treated with the amino acid biostimulant, plants treated with Ascophyllum nodosum filtrate + amino acids, as well as control plants which were not treated with biostimulants. After harvesting the heads were stored at room temperature (24°C, 65% RH) for 1, 2 and 3 days. The contents of total phenols, caffeic, ferulic and sinapic acids, as well as the contents of quercetin and kaempferol were measured in fresh broccoli heads and after each day of storage. Results. The biostimulants enhanced the total phenolic content and the amount of caffeic and ferulic acids in fresh broccoli heads only in the first year of the experiment. However, the content of kaempferol increased in both years of the experiment. The biostimulants considerably affected the total phenolic content, the amount of quercetin as well as the amounts of ferulic and sinapic acids after the second or third day of storage, but only in the first or second year of the experiment. Conclusions. The biostimulants increased the content of phenolic compounds, but this effect was different in both years of the experiment. The total phenolic content and phenolic acids content increased with the length of storage.
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Claims 6
Claim · model-written summary
Biostimulants enhanced total phenolic content and caffeic and ferulic acid amounts in fresh broccoli heads, only in the first year.
- Taxon
- broccoli
Brassica oleracea var. italicat0 - Organ / stage
- fresh broccoli headse1
- Treatment
- biostimulantse1
- Outcome
- total phenolic content and the amount of caffeic and ferulic acidse1
- Direction
- enhancede1
- Qualifier
- only in the first year of the experimente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e1“The biostimulants enhanced the total phenolic content and the amount of caffeic and ferulic acids in fresh broccoli heads only in the first year of the experiment”
Claim · model-written summary
Biostimulants increased kaempferol content in broccoli heads in both years of the experiment.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- biostimulantse1
- Outcome
- the content of kaempferole2
- Direction
- increasede2
- Qualifier
- in both years of the experimente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e1“The biostimulants enhanced the total phenolic content and the amount of caffeic and ferulic acids in fresh broccoli heads only in the first year of the experiment”
e2“However, the content of kaempferol increased in both years of the experiment”
Claim · model-written summary
Biostimulants affected total phenolic content and quercetin amount after the second or third day of storage, only in the first or second year.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- biostimulantse3
- Outcome
- total phenolic content, the amount of quercetine3
- Qualifier
- after the second or third day of storage, but only in the first or second year of the experimente3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e3“The biostimulants considerably affected the total phenolic content, the amount of quercetin as well as the amounts of ferulic and sinapic acids after the second or third day of storage, but only in the first or second year of the experiment”
Claim · model-written summary
Biostimulants affected ferulic and sinapic acid amounts after the second or third day of storage, only in the first or second year.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- biostimulantse3
- Outcome
- the amounts of ferulic and sinapic acidse3
- Qualifier
- after the second or third day of storage, but only in the first or second year of the experimente3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e3“The biostimulants considerably affected the total phenolic content, the amount of quercetin as well as the amounts of ferulic and sinapic acids after the second or third day of storage, but only in the first or second year of the experiment”
Claim · model-written summary
Total phenolic content and phenolic acid content increased with the length of storage in broccoli heads.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- length of storagee4
- Outcome
- total phenolic content and phenolic acids contente4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e4“The total phenolic content and phenolic acids content increased with the length of storage”
Claim · model-written summary
Biostimulants increased phenolic compound content in broccoli, with the effect differing between the two years.
- Taxon
- broccoliBrassica oleracea var. italicat0
- Treatment
- biostimulantse5
- Outcome
- content of phenolic compoundse5
- Direction
- increasede5
- Qualifier
- this effect was different in both years of the experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“broccoli heads”
e5“The biostimulants increased the content of phenolic compounds, but this effect was different in both years of the experiment”
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See all 14 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.