Abstract
Quality characteristics (acidity, peroxide values, K232, K270, oxidative stability) and chemical compositional data (fatty acids, sterols and triacylglycerols) were studied in virgin olive oil samples from olive trees, cv Koroneiki, subjected to different water regimes. Experimental trials were carried out using three-year old own-rooted olive trees (Olea europaea L) variety Koroneiki. Plants were subjected to two irrigation treatments to maintain soil water potential to -0.03 MPa and -1.5 MPa. Results showed that irrigation significantly increased the fruit oil content and the oxidative stability and peroxide value of the resulting oil. Olive oil from fruits of irrigated trees showed significant higher values in total saturated fatty acids. Total sterols were also significantly influenced by irrigation. Acidity and specific absorption coefficients K232, K270, of olive oils were not significantly affected.
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Claims 5
Claim · model-written summary
Irrigation significantly increased fruit oil content.
- Taxon
- Olea europaea L
Olea europaeae1 - Material
- Koroneikie1
- Treatment
- irrigatione0
- Outcome
- fruit oil contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation significantly increased the fruit oil content and the oxidative stability and peroxide value of the resulting oil”
e1“olive trees (Olea europaea L) variety Koroneiki”
Claim · model-written summary
Irrigation significantly increased oil oxidative stability and peroxide value.
- Taxon
- Olea europaea LOlea europaeae1
- Material
- Koroneikie1
- Treatment
- irrigatione0
- Outcome
- oxidative stability and peroxide valuee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation significantly increased the fruit oil content and the oxidative stability and peroxide value of the resulting oil”
e1“olive trees (Olea europaea L) variety Koroneiki”
Claim · model-written summary
Oil from irrigated fruits had significantly higher total saturated fatty acids.
- Taxon
- Olea europaea LOlea europaeae1
- Material
- Koroneikie1
- Treatment
- irrigatede0
- Outcome
- total saturated fatty acidse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Olive oil from fruits of irrigated trees showed significant higher values in total saturated fatty acids.”
e1“olive trees (Olea europaea L) variety Koroneiki”
Claim · model-written summary
Irrigation significantly influenced total sterols, with direction unspecified.
- Taxon
- Olea europaea LOlea europaeae1
- Material
- Koroneikie1
- Treatment
- irrigatione0
- Outcome
- Total sterolse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total sterols were also significantly influenced by irrigation.”
e1“olive trees (Olea europaea L) variety Koroneiki”
Claim · model-written summary
Acidity and absorption coefficients K232 and K270 were not significantly affected.
- Taxon
- Olea europaea LOlea europaeae1
- Material
- Koroneikie1
- Treatment
- irrigatione2
- Outcome
- Acidity and specific absorption coefficients K232, K270e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acidity and specific absorption coefficients K232, K270, of olive oils were not significantly affected.”
e1“olive trees (Olea europaea L) variety Koroneiki”
e2“Total sterols were also significantly influenced by irrigation.”
The same questions in other papers
irrigation · quality: oil · Olea europaea (common olive)Positive and negative results
14 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- no effect
27 papers more in this group
See all 31 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.