Abstract
Onion seeds have one of the lowest longevity among the cultivated crops as it loses viability within a year. The unmarketable seeds have no reported food value or feed value. Onion seeds contain considerable oil content which has potential industrial utility. The present study reports the changes in the quality of seed oil extracted from seeds stored for one year (2019-2020), after which the seeds were unmarketable due to low germination. The physico-chemical properties of seed oil were studied in four onion (Allium cepa L.) varieties (Bhima Safed, Bhima Super, Bhima Dark Red and Bhima Shakti) by standard analytical test. The per cent oil content varied from 12.94% - 16.02% and storage resulted in 0.64% loss in seed oil content. The mean seed germination in freshly harvested seeds was 80.50%, which declined to 52.33% after one year of ambient storage. The electrical conductivity, which measures the membrane integrity increased by 108.60% in one-year-old seeds. The physico-chemical properties of the seed oil deteriorated with the age of the seed. In comparison to the control, the acid values and peroxide values of the seed oil increased by 51.11% and 12.90% respectively, while saponification value decreased by 36.18%. Among the varieties, Bhima Dark Red had the highest degradation in the seed storability and vigour, which also had the highest deterioration in the lipid quality. The present study reports for the first time the degradation of seed lipids during ageing in onion which might be contributing to the poor storability of onion seeds.
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Claims 11
Claim · model-written summary
Oil content varied from 12.94% to 16.02% across onion varieties.
- Taxon
- onion (Allium cepa L.)
Allium cepat0 - Outcome
- oil contente0
- Value
- 12.94% - 16.02%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The per cent oil content varied from 12.94% - 16.02%”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Storage caused a 0.64% loss in seed oil content.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Treatment
- storagee0
- Outcome
- seed oil contente0
- Direction
- losse0
- Value
- 0.64%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“storage resulted in 0.64% loss in seed oil content”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Mean onion seed germination declined from 80.50% to 52.33% after one year of ambient storage.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Treatment
- one year of ambient storagee0
- Outcome
- seed germinatione0
- Direction
- declinede0
- Value
- 52.33%e0
- Qualifier
- 80.50%e0
- Comparator
- freshly harvested seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean seed germination in freshly harvested seeds was 80.50%, which declined to 52.33% after one year of ambient storage”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Electrical conductivity increased 108.60% in one-year-old seeds.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Treatment
- one-year-old seedse0
- Outcome
- electrical conductivitye0
- Direction
- increasede0
- Value
- 108.60%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The electrical conductivity, which measures the membrane integrity increased by 108.60% in one-year-old seeds”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Seed oil physicochemical properties deteriorated with seed age.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Outcome
- physico-chemical properties of the seed oile0
- Direction
- deterioratede0
- Comparator
- age of the seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The physico-chemical properties of the seed oil deteriorated with the age of the seed”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Seed oil acid values increased 51.11% relative to control.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Outcome
- acid valuese0
- Direction
- increasede0
- Value
- 51.11%e0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In comparison to the control, the acid values and peroxide values of the seed oil increased by 51.11% and 12.90% respectively”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Seed oil peroxide values increased 12.90% relative to control.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Outcome
- peroxide valuese0
- Direction
- increasede0
- Value
- 12.90%e0
- Comparator
- controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In comparison to the control, the acid values and peroxide values of the seed oil increased by 51.11% and 12.90% respectively”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Seed oil saponification value decreased 36.18%.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Outcome
- saponification valuee0
- Direction
- decreasede0
- Value
- 36.18%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while saponification value decreased by 36.18%”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Bhima Dark Red had the greatest deterioration in seed storability and vigour.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Material
- Bhima Dark Rede0
- Outcome
- seed storability and vigoure0
- Direction
- highest degradatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the varieties, Bhima Dark Red had the highest degradation in the seed storability and vigour”
t0“onion (Allium cepa L.)”
Claim · model-written summary
Bhima Dark Red also had the greatest lipid quality deterioration.
- Taxon
- onion (Allium cepa L.)Allium cepat0
- Material
- Bhima Dark Redt1
- Outcome
- lipid qualitye0
- Direction
- highest deterioratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which also had the highest deterioration in the lipid quality”
t0“onion (Allium cepa L.)”
t1“Bhima Dark Red had the highest degradation”
Claim · model-written summary
The authors suggest lipid degradation may contribute to poor onion seed storability.
- Taxon
- onionAllium cepae0
- Outcome
- poor storability of onion seedse0
- Qualifier
- degradation of seed lipids during ageinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“degradation of seed lipids during ageing in onion which might be contributing to the poor storability of onion seeds”
The same questions in other papers
storage · quality: oil · Allium cepa (onion)Positive and negative results
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5 papers in the same direction as this paper · 19 in the opposite direction
- positive
- positive
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21 papers more in this group
See all 25 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.