Abstract
Abstract. Proper pre- and post-harvest management of rice is crucial to maintain the grain quality and safety. The objectives of this study were to demonstrate the links among mold growth and/or prevalence to head rice yields (HRYs) deterioration, rice kernel discoloration, and changes in rice functional properties as observed during the grain storage. This study specifically investigated effects of pre-harvest fungicide application on post-harvest rice quality and safety attributes. Freshly-harvested rough rice was store at four moisture content (MC) levels (12.5%, 16%, 19% and 21%), and at five temperatures (10°C, 15°C, 20°C, 27°C, 40°C) for 16 weeks, with samples taken every 2 weeks. Kinetics of mold growth, HRY and rice color were determined. Storage of rice for 16 weeks at 12.5-21% MC and 10-40°C resulted in non-significant reductions in HRYs. There was a direct relationship between mold counts and stored rice MC. Low HRY recovery and significant discoloration of rice kernel was noted for samples lots of non-fungicide treated rice compared to the fungicide treated lot. Discoloration detected in samples stored at 27-40°C and 19-21% MC indicated the role of mold in kernel discoloration under certain conditions. Results from this study may support application of rice cooling technology to preserve HRYs and rice color; moreover, the study suggest a link between the prevalence of fungi and discoloration of rice kernels.
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Claims 6
Claim · model-written summary
Storage for 16 weeks across the tested moisture and temperature ranges produced nonsignificant reductions in head rice yield.
- Taxon
- rice
Oryza sativae0 - Treatment
- Storage of rice for 16 weeks at 12.5-21% MC and 10-40°Ce0
- Outcome
- HRYse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of rice for 16 weeks at 12.5-21% MC and 10-40°C resulted in non-significant reductions in HRYs.”
Claim · model-written summary
Mold counts were directly related to stored rice moisture content.
- Taxon
- riceOryza sativae0
- Outcome
- mold countse0
- Comparator
- stored rice MCe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a direct relationship between mold counts and stored rice MC.”
Claim · model-written summary
Nonfungicide treated rice had lower head rice recovery than fungicide treated rice.
- Taxon
- riceOryza sativae0
- Treatment
- non-fungicide treated ricee0
- Outcome
- HRY recoverye0
- Direction
- Lowe0
- Comparator
- fungicide treated lote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low HRY recovery and significant discoloration of rice kernel was noted for samples lots of non-fungicide treated rice compared to the fungicide treated lot.”
Claim · model-written summary
Nonfungicide treated rice had significantly more kernel discoloration than fungicide treated rice.
- Taxon
- riceOryza sativae0
- Treatment
- non-fungicide treated ricee0
- Outcome
- discoloration of rice kernele0
- Comparator
- fungicide treated lote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low HRY recovery and significant discoloration of rice kernel was noted for samples lots of non-fungicide treated rice compared to the fungicide treated lot.”
Claim · model-written summary
Discoloration at high temperature and moisture indicated a role of mold in kernel discoloration.
- Taxon
- RiceOryza sativat0
- Outcome
- kernel discoloratione0
- Qualifier
- samples stored at 27-40°C and 19-21% MCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discoloration detected in samples stored at 27-40°C and 19-21% MC indicated the role of mold in kernel discoloration under certain conditions.”
t0“Rice”
Claim · model-written summary
The authors suggest rice cooling technology to preserve head rice yields and color.
- Taxon
- riceOryza sativae0
- Treatment
- rice cooling technologye0
- Outcome
- preserve HRYs and rice colore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from this study may support application of rice cooling technology to preserve HRYs and rice color”
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See all 12 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.