Abstract
Potatoes and onions are irradiated to prevent their germination for 8 months after harvest. Twenty-seven tons of potatoes were exposed to /sup 60/Co gamma irradiation at a dose rate of 7 x 10/sup 4/ R/hr. Potatoes irradiated with a dose of 7 to 15 Krads were stored for 8 months at room temperature, and were suitable market produce. Sapporo yellow onions, produced in Hokkaido and which passed the year-end for storage, were mainly studied. It was possible to prevent germination of the onions if irradiated at a dose of 3 to 10 Krads within the dormant period. Concerning rice, it was suggested that prevention of the main harmful insects of rice, such as rice weevil, Sordidus zeamais and Sordidus oryzal, was possible by sterilization and inactivation through irradiation at a dose of 15 Krads. The sterilization dose for harmful insects of wheat was 5 to 7 Krads. Theoff flavor in the wheat was recognized immediately after irradiation at a dose of 20 Krads, but after three months wheat did not show off flavor even with 50 Krads irradiation. As a result, the volume of bread was larger in irradiated bread rather than in nonirradiated bread. Vienna sausage without preservatives wasmore » irradiated in 500 Krads under the condition of being kept in cold storage at 10 deg C. Its decomposition was delayed one week. The proper dose for boiled fishpaste was determined to be 300 Krads, and its preservation period was prolonged from 7 to 10 days to 21 days by irradiation. In mandarin oranges, off flavor was caused by a dose level of 50 Krads of /sup 60/Co gamma radiation. Therefore, irradiation of mandarin oranges has to depend on electron irnadiation, but problems remain regarding the irradiation technique. In a study of the safety of irradiated food, potato irradiation was permitted by the Ministry of Health and Welfare at a dose of 15 Knads in August of 1972. Lastly, the condition of potato irradiation in the producing and consuming districts and economic problems are discussed. (JA)« less
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Claims 8
Claim · model-written summary
Irradiated potatoes at 7 to 15 Krads remained marketable after eight months at room temperature.
- Taxon
- Potatoes
Solanum tuberosume0 - Treatment
- irradiated with a dose of 7 to 15 Kradse0
- Outcome
- suitable market producee0
- Value
- 8 monthse0
- Setting
- room temperaturee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potatoes irradiated with a dose of 7 to 15 Krads were stored for 8 months at room temperature, and were suitable market produce.”
Claim · model-written summary
Irradiation at 3 to 10 Krads during dormancy prevented onion germination.
- Taxon
- onions
Allium cepae0 - Organ / stage
- dormant periode0
- Treatment
- irradiated at a dose of 3 to 10 Kradse0
- Outcome
- germinatione0
- Direction
- prevente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was possible to prevent germination of the onions if irradiated at a dose of 3 to 10 Krads within the dormant period.”
Claim · model-written summary
Irradiation at 15 Krads was suggested to control rice insect pests by sterilization and inactivation.
- Taxon
- rice
Oryza sativae0 - Treatment
- irradiation at a dose of 15 Kradse0
- Interactor
- rice weevil
Sitophilus oryzaee0pest - Outcome
- prevention of the main harmful insectse0
- Direction
- preventione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prevention of the main harmful insects of rice, such as rice weevil, Sordidus zeamais and Sordidus oryzal, was possible by sterilization and inactivation through irradiation at a dose of 15 Krads.”
Claim · model-written summary
Wheat insect pests were sterilized at 5 to 7 Krads.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- 5 to 7 Kradse0
- Interactor
- harmful insectse0pest
- Outcome
- sterilization dose for harmful insectse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sterilization dose for harmful insects of wheat was 5 to 7 Krads.”
Claim · model-written summary
Wheat developed off flavor immediately after 20 Krads irradiation.
- Taxon
- wheatTriticum aestivume0
- Treatment
- irradiation at a dose of 20 Kradse0
- Outcome
- off flavore0
- Qualifier
- immediatelye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Theoff flavor in the wheat was recognized immediately after irradiation at a dose of 20 Krads”
Claim · model-written summary
Wheat had no off flavor after three months even with 50 Krads irradiation.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 50 Krads irradiatione0
- Outcome
- did not show off flavore0
- Qualifier
- after three monthse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after three months wheat did not show off flavor even with 50 Krads irradiation.”
Claim · model-written summary
Bread volume was greater when irradiated than when not irradiated.
Not reportedTaxon
Verbatim
e0“the volume of bread was larger in irradiated bread rather than in nonirradiated bread.”
t0“food irradiation”
Claim · model-written summary
Mandarin oranges developed off flavor at 50 Krads gamma irradiation.
- Taxon
- mandarin oranges
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Citrus reticulatae0 - Treatment
- 50 Krads of /sup 60/Co gamma radiatione0
- Outcome
- off flavore0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In mandarin oranges, off flavor was caused by a dose level of 50 Krads of /sup 60/Co gamma radiation.”
The same questions in other papers
radiation · quality: general · Triticum aestivum (wheat)Positive and negative results
3 in the opposite direction
- no effect
- negative
- no effect
radiation · growth · Allium cepa (onion)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 papers →radiation · Sitophilus oryzae · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
radiation · quality: general · Citrus reticulata (tangerine)Results agree
3 papers in the same direction as this paper
- no effect
- no effect
- negative
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.