Abstract
The effects of rough rice pre-drying, drying, and storage treatments on the gelatinization and retrogradationproperties of long-grain rice (cv. Cypress) were studied via differential scanning calorimetry (DSC). The experimentalvariables included two pre-drying conditions (immediate and delayed drying), two drying conditions (high and low airtemperatures), and four storage treatments (no storage, and storage at 4, 21, and 38C for 20 wk). Gelatinization of therice flour in water occurred at temperatures from 73 to 86C, with an enthalpy of 8.3 to 9.7 J/g. Storage temperature hada significant effect on the gelatinization characteristics. Rice stored at 38C exhibited higher (p < 0.0005) gelatinizationenthalpy and peak temperature than did rice stored at 4 and 21C. Pre-drying treatments had no significant effect on thegelatinization enthalpy and peak temperature, but did on the onset temperature (p < 0.05). The pre-drying and/or dryingtreatments had significant (p < 0.05) effects on the retrogradation onset and conclusion temperatures of gelatinized rice.Storage of rough rice significantly (p < 0.0001) increased retrogradation enthalpy, but did not affect the peak temperatureof the retrogradation endotherm.
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Claims 11
Claim · model-written summary
Rice flour gelatinized at 73 to 86C with enthalpy of 8.3 to 9.7 J/g.
- Taxon
- rice
Oryza sativae0 - Outcome
- Gelatinization of therice flour in watere0
- Value
- 73 to 86Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gelatinization of therice flour in water occurred at temperatures from 73 to 86C, with an enthalpy of 8.3 to 9.7 J/g”
Claim · model-written summary
Rice gelatinization enthalpy was 8.3 to 9.7 J/g.
- Taxon
- RICEOryza sativat0
- Outcome
- enthalpye0
- Value
- 8.3 to 9.7 J/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with an enthalpy of 8.3 to 9.7 J/g”
t0“RICE”
Claim · model-written summary
Storage temperature significantly affected rice gelatinization characteristics.
- Taxon
- RICEOryza sativat0
- Outcome
- gelatinization characteristicse0
- Setting
- Storage temperaturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“RICE”
e0“Storage temperature hada significant effect on the gelatinization characteristics”
Claim · model-written summary
Storage at 38C raised rice gelatinization enthalpy relative to 4 and 21C.
- Taxon
- RiceOryza sativae0
- Treatment
- stored at 38Ce0
- Outcome
- gelatinizationenthalpye0
- Direction
- highere0
- Comparator
- rice stored at 4 and 21Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice stored at 38C exhibited higher (p < 0.0005) gelatinizationenthalpy and peak temperature than did rice stored at 4 and 21C”
Claim · model-written summary
Storage at 38C raised rice gelatinization peak temperature relative to 4 and 21C.
- Taxon
- RiceOryza sativae0
- Treatment
- stored at 38Ce0
- Outcome
- peak temperaturee0
- Direction
- highere0
- Comparator
- rice stored at 4 and 21Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice stored at 38C exhibited higher (p < 0.0005) gelatinizationenthalpy and peak temperature than did rice stored at 4 and 21C”
Claim · model-written summary
Pre-drying did not significantly affect gelatinization enthalpy or peak temperature.
- Taxon
- RICEOryza sativat0
- Treatment
- Pre-drying treatmentse0
- Outcome
- gelatinization enthalpy and peak temperaturee0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“RICE”
e0“Pre-drying treatments had no significant effect on thegelatinization enthalpy and peak temperature”
Claim · model-written summary
Pre-drying significantly affected gelatinization onset temperature.
- Taxon
- RICEOryza sativat0
- Treatment
- Pre-drying treatmentse0
- Outcome
- onset temperaturee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“RICE”
e0“Pre-drying treatments had no significant effect on thegelatinization enthalpy and peak temperature, but did on the onset temperature (p < 0.05)”
Claim · model-written summary
Pre-drying and/or drying significantly affected retrogradation onset temperature.
- Taxon
- riceOryza sativae0
- Treatment
- pre-drying and/or dryingtreatmentse0
- Outcome
- retrogradation onsete0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“RICE”
e0“The pre-drying and/or dryingtreatments had significant (p < 0.05) effects on the retrogradation onset and conclusion temperatures of gelatinized rice”
Claim · model-written summary
Pre-drying and/or drying significantly affected retrogradation conclusion temperature.
- Taxon
- riceOryza sativae0
- Treatment
- pre-drying and/or dryingtreatmentse0
- Outcome
- conclusion temperaturese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-drying and/or dryingtreatments had significant (p < 0.05) effects on the retrogradation onset and conclusion temperatures of gelatinized rice”
Claim · model-written summary
Storage significantly increased rice retrogradation enthalpy.
- Taxon
- riceOryza sativae0
- Treatment
- Storagee0
- Outcome
- retrogradation enthalpye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of rough rice significantly (p < 0.0001) increased retrogradation enthalpy”
Claim · model-written summary
Storage did not affect rice retrogradation peak temperature.
- Taxon
- RICEOryza sativat0
- Outcome
- peak temperatureof the retrogradation endotherme0
- Direction
- did not affecte0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“RICE”
e0“but did not affect the peak temperatureof the retrogradation endotherm”
The same questions in other papers
storage · soil: physics · 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.