Abstract
In India, presently about 35 to 40 per cent of the onion is estimated to be lost as post-harvest losses during various operations including handling and storage. Serious losses occur during storage due to sprouting and rotting. Keeping this in view, an investigation was carried out to study the effect of different packing and storage methods on storage life of aggregatum onion cv. CO on 5. This experiment was conducted at Department of Vegetable Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore during 2008-2010 and laid out in factorial completely randomized design (FCRD) with eight treatments and three replications. Pre-harvest spray with growth inhibitors and fungicides were given. The pre-harvest sprayed onion bulbs were harvested, cured and subjected to different packing and storage methods. Among the different packing and storage treatments, the lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method. The harvested bulbs stored under low cost bottom ventilated storage structure realized maximum shelf life (up to 6 months) compared to spreading of bulbs in room temperature.
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Claims 14
Claim · model-written summary
Stored onion bulbs had physiological loss in weight of 5.18 %.
- Taxon
- onion
Allium cepat0 - Material
- aggregatum onion cv. CO on 5e1
- Outcome
- physiological loss in weighte0
- Value
- 5.18 %e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had sprouting of 0.62 %.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- sproutinge0
- Value
- 0.62 %e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sprouting (0.62 %)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had rotting of 0.64 %.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- rottinge0
- Value
- 0.64 %e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rotting (0.64 %)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had rooting of 0.00 %.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- rootinge0
- Value
- 0.00 %e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rooting (0.00 %)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had total loss of 6.78 per cent.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- total losse0
- Value
- 6.78 per cente0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total loss (6.78 per cent)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had TSS of 17.22 ï‚°Brix.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- TSSe0
- Value
- 17.22 ï‚°Brixe0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TSS (17.22 ï‚°Brix)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had ascorbic acid of 10.24 mg 100 g-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- ascorbic acide0
- Value
- 10.24 mg 100 g-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbic acid (10.24 mg 100 g-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had pyruvic acid of 2.53 µmol g-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- pyruvic acide0
- Value
- 2.53 µmol g-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pyruvic acid (2.53 µmol g-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had sulphur content of 0.704 %.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- sulphur contente0
- Value
- 0.704 %e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulphur content (0.704 %)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had total phenolics content of 625.56 µg g-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- total phenolics contente0
- Value
- 625.56 µg g-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total phenolics content (625.56 µg g-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had phenylalanine ammonia lyase activity of 6.86 µg ml-1min-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- phenylalanine ammonia lyase activitye0
- Value
- 6.86 µg ml-1min-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phenylalanine ammonia lyase activity (6.86 µg ml-1min-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had peroxidase activity of 1.825 absorbance g-1min-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- peroxidase activitye0
- Value
- 1.825 absorbance g-1min-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase activity (1.825 absorbance g-1min-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Stored onion bulbs had polyphenol oxidase activity of 1.321 absorbance g-1min-1.
- Taxon
- onionAllium cepat0
- Material
- aggregatum onion cv. CO on 5e1
- Outcome
- polyphenol oxidase activitye0
- Value
- 1.321 absorbance g-1min-1e0
- Setting
- ventilated room temperature storage methode2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenol oxidase activity (1.321 absorbance g-1min-1)”
t0“onion”
t1“onion”
e1“storage life of aggregatum onion cv. CO on 5.”
e2“lowest physiological loss in weight (5.18 %), sprouting (0.62 %), rotting (0.64 %), rooting (0.00 %), total loss (6.78 per cent) and quality parameters viz., TSS (17.22 ï‚°Brix), ascorbic acid (10.24 mg 100 g-1), pyruvic acid (2.53 µmol g-1), sulphur content (0.704 %), total phenolics content (625.56 µg g-1), phenylalanine ammonia lyase activity (6.86 µg ml-1min-1), peroxidase activity (1.825 absorbance g-1min-1) and polyphenol oxidase activity (1.321 absorbance g-1min-1) were observed and bulbs in ventilated room temperature storage method.”
Claim · model-written summary
Bottom ventilated storage gave onion bulbs a maximum shelf life of up to 6 months compared with room temperature spreading.
- Taxon
- onionAllium cepat0
- Treatment
- low cost bottom ventilated storage structuree0
- Outcome
- shelf lifee0
- Direction
- maximume0
- Value
- up to 6 monthse0
- Comparator
- spreading of bulbs in room temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The harvested bulbs stored under low cost bottom ventilated storage structure realized maximum shelf life (up to 6 months) compared to spreading of bulbs in room temperature.”
t0“onion”
t1“onion”
The same questions in other papers
storage · quality: postharvest · Allium cepa (onion)Positive and negative results
17 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
24 papers more in this group
See all 28 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.