Abstract
Abstract In view of the problem that conventional insecticidal methods cannot inhibit the hatching of insect eggs in rice, microwave heating was used to kill the insect eggs hidden in the rice grains. The lethal conditions of microwave irradiation on insect pests in rice and the effects of microwave irradiation on the quality of rice were studied, and the process conditions that can both ensure the quality of rice and kill insects were put forward. The microwave energy density parameter was used to evaluate the lethal conditions of microwave irradiation for insect pests in rice. The results showed that the lethality ratio of insect pests was 100% when the microwave energy density was higher than 0.0325 kW h/kg. Both microwave power density and microwave power affected the quality of rice. The results concluded that the cracking ratio, chalkiness and amylose content were increased with the increase of microwave power at the same microwave power density, while the free fatty acid content was decreased. Through the study of variable microwave power process, it was found that the cracking ratio and chalkiness can be controlled below 1.5% when the heating rate of rice at the later stage of microwave irradiation was less than 0.2 °C/s. The use of two-stage variable microwave power process can eventually ensure the disinfestation and the quality of rice simultaneously.
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Claims 7
Claim · model-written summary
Microwave energy density above 0.0325 kW h/kg achieved 100% insect pest lethality in rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- microwave energy density was higher than 0.0325 kW h/kge0
- Interactor
- insect pestse0pest
- Outcome
- lethality ratio of insect pestse0
- Value
- 100%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lethality ratio of insect pests was 100% when the microwave energy density was higher than 0.0325 kW h/kg.”
t0“in rice and its influence”
Claim · model-written summary
Microwave power density and power affected rice quality.
- Taxon
- riceOryza sativae0
- Treatment
- microwave power density and microwave powere0
- Outcome
- quality of ricee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both microwave power density and microwave power affected the quality of rice.”
Claim · model-written summary
At the same power density, greater microwave power increased cracking ratio and chalkiness.
- Taxon
- riceOryza sativat0
- Treatment
- increase of microwave powere0
- Outcome
- cracking ratio, chalkinesse0
- Direction
- increasede0
- Qualifier
- at the same microwave power densitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cracking ratio, chalkiness and amylose content were increased with the increase of microwave power at the same microwave power density”
t0“in rice and its influence”
Claim · model-written summary
At the same power density, greater microwave power increased amylose content.
- Taxon
- riceOryza sativat0
- Treatment
- increase of microwave powere0
- Outcome
- amylose contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amylose content were increased with the increase of microwave power at the same microwave power density”
t0“in rice and its influence”
Claim · model-written summary
Greater microwave power decreased free fatty acid content.
- Taxon
- riceOryza sativat0
- Treatment
- increase of microwave powere1
- Outcome
- free fatty acid contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the free fatty acid content was decreased.”
e1“increase of microwave power”
t0“in rice and its influence”
Claim · model-written summary
A later heating rate under 0.2 °C/s held cracking ratio and chalkiness below 1.5%.
- Taxon
- riceOryza sativae0
- Treatment
- heating rate of rice at the later stage of microwave irradiation was less than 0.2 °C/se0
- Outcome
- cracking ratio and chalkinesse0
- Direction
- belowe0
- Value
- 1.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cracking ratio and chalkiness can be controlled below 1.5% when the heating rate of rice at the later stage of microwave irradiation was less than 0.2 °C/s.”
Claim · model-written summary
Two-stage variable microwave power could ensure both disinfestation and rice quality.
- Taxon
- riceOryza sativat0
- Treatment
- two-stage variable microwave power processe0
- Outcome
- ensure the disinfestation and the quality of rice simultaneouslye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of two-stage variable microwave power process can eventually ensure the disinfestation and the quality of rice simultaneously.”
t0“in rice and its influence”
The same questions in other papers
processing · pest · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
5 papers more in this group
See all 9 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.