Paper · 2005 · Drying Technology

Effects of High-Temperature Drying on Physicochemical Properties of Various Cultivars of Rice

Lamul Wiset; George Srzednicki; Michael Wootton; et al.

9
claims
21
verbatim quotes
38
citations
2
research areas
—
Not open access

Abstract

Abstract Three varieties of paddy rice, namely Langi and Amaroo from Australia and Chainart I from Thailand, were dried from high initial moisture content of about 27% down to 13–14% wet basis using a two-stage drying system. A fluidized bed dryer reduced the moisture content down to 18%. Drying experiments were carried out at 100, 125, and 150°C. Further moisture content reduction down to 14% was achieved by shade drying. As a result of these treatments, head rice yield increased proportionally with the drying temperature. In contrast to that, the yellowness, measured by colorimeter in terms of b value, showed an opposite trend. Starch characteristics were studied by Rapid Visco Analyser (RVA), x-ray diffraction, and differential scanning calorimetry (DSC). Pasting properties were affected by the drying temperature. The peak viscosity and break down were decreasing with the increase of drying temperature in all varieties while the setback values were increasing in Langi and Amaroo only. All starch samples displayed the typical A type x-ray diffraction pattern. The apparent crystallinity determined by x-ray diffraction was reduced with increasing drying temperature. The gelatinization peak shifted to higher temperature while the endothermic enthalpy of gelatinization decreased with increasing drying temperature.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Head rice yield rose with drying temperature.

Treatment
drying temperaturee0
Outcome
head rice yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“head rice yield increased proportionally with the drying temperature”

✓ located verbatim in the source · abstract, characters 460–528 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Yellowness showed the opposite trend to head rice yield as temperature rose.

Treatment
drying temperaturee1
Outcome
yellownesse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the yellowness, measured by colorimeter in terms of b value, showed an opposite trend”

✓ located verbatim in the source · abstract, characters 551–636 · show in text ↑
t0

“High-Temperature Drying on Physicochemical Properties of Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 11–93 · show in text ↑
e1

“head rice yield increased proportionally with the drying temperature”

✓ located verbatim in the source · abstract, characters 460–528 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Pasting properties varied with drying temperature.

Treatment
drying temperaturee0
Outcome
Pasting propertiese0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Pasting properties were affected by the drying temperature.”

✓ located verbatim in the source · abstract, characters 769–828 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Peak viscosity and breakdown fell with higher drying temperature in all varieties.

Treatment
drying temperaturee0
Outcome
peak viscosity and break downe0
Direction
decreasinge0
Qualifier
all varietiese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The peak viscosity and break down were decreasing with the increase of drying temperature in all varieties”

✓ located verbatim in the source · abstract, characters 829–935 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Setback values rose with drying temperature in Langi and Amaroo only.

Material
Langi and Amarooe0
Treatment
drying temperaturee1
Outcome
setback valuese0
Direction
increasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“setback values were increasing in Langi and Amaroo only”

✓ located verbatim in the source · abstract, characters 946–1001 · show in text ↑
t0

“High-Temperature Drying on Physicochemical Properties of Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 11–93 · show in text ↑
e1

“head rice yield increased proportionally with the drying temperature”

✓ located verbatim in the source · abstract, characters 460–528 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

All starch samples had a typical A-type diffraction pattern.

Outcome
typical A type x-ray diffraction patterne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“All starch samples displayed the typical A type x-ray diffraction pattern.”

✓ located verbatim in the source · abstract, characters 1003–1077 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Apparent crystallinity fell as drying temperature rose.

Treatment
increasing drying temperaturee0
Outcome
apparent crystallinitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The apparent crystallinity determined by x-ray diffraction was reduced with increasing drying temperature.”

✓ located verbatim in the source · abstract, characters 1078–1184 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The gelatinization peak shifted to a higher temperature as drying temperature rose.

Treatment
drying temperaturee1
Outcome
gelatinization peake0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The gelatinization peak shifted to higher temperature”

✓ located verbatim in the source · abstract, characters 1185–1238 · show in text ↑
t0

“High-Temperature Drying on Physicochemical Properties of Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 11–93 · show in text ↑
e1

“head rice yield increased proportionally with the drying temperature”

✓ located verbatim in the source · abstract, characters 460–528 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Gelatinization enthalpy decreased as drying temperature rose.

Treatment
increasing drying temperaturee0
Outcome
endothermic enthalpy of gelatinizatione0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the endothermic enthalpy of gelatinization decreased with increasing drying temperature”

✓ located verbatim in the source · abstract, characters 1245–1332 · show in text ↑
t0

“Various Cultivars of Rice”

✓ located verbatim in the source · title, characters 68–93 · show in text ↑

processing · quality: grain · Oryza sativa (rice)Positive and negative results

55 papers: 31 positive, 24 negative or no effect

30 papers in the same direction as this paper · 24 in the opposite direction

  1. no effect
  2. negative
  3. negative

51 papers more in this group

See all 55 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.