Paper · 2015 · 2015 ASABE International Meeting

Evaluating the Suitability of Drying Rough Rice Using Heated Husk as Moisture Adsorbent

Sammy Sadaka; Gagandeep S. Ubhi

4
claims
4
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

Abstract. The main goal of this research was to study the effects the utilization of heated rice husk (20oC to 107oC), residence time (0 h to 5 h) and rice husk to rough rice ratios (1:2, 1:4, 1:6, 1:8 and 1:10 kg kg-1) on the moisture reduction and drying rate. Heated rice husk, in the present study, was used as a solid heat transfer medium and a moisture adsorbent during the drying process. Increasing the rice husk to rice ratio showed a lower temperature during the first hour of the cooling stage, particularly with the higher temperatures levels greater than 40°C. The highest temperature range was very clear at the husk temperature level of 107°C. A 4.0% moisture reduction of rough rice could be achieved by employing heated rice husk at 107oC and mixing the rice husk to rough rice by 1:2 weight basis. Increasing the husk to rough rice ratio decreased the rough rice-drying rate. The highest drying rate of 3.87%/h was achieved during the first hour after the mixing process under the husk temperature of 97oC and the husk to rice ratio of 1:2. The first hour of the drying process proven to be the most effective duration as evident by the highest drying rate.

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Claims 4

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A higher husk-to-rice ratio lowered temperature during the first cooling hour.

Treatment
Increasing the rice husk to rice ratioe0
Outcome
temperaturee0
Direction
lowere0

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

“Increasing the rice husk to rice ratio showed a lower temperature during the first hour of the cooling stage”

✓ located verbatim in the source · abstract, characters 396–504 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Heated husk at 107oC and a 1:2 ratio reduced rough rice moisture by 4.0%.

Taxon
rough ricee0
Treatment
heated rice husk at 107oCe0
Outcome
moisture reductione0
Value
4.0%e0
Qualifier
1:2 weight basise0

Verbatim

e0

“A 4.0% moisture reduction of rough rice could be achieved by employing heated rice husk at 107oC and mixing the rice husk to rough rice by 1:2 weight basis”

✓ located verbatim in the source · abstract, characters 659–814 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing the husk-to-rice ratio decreased rough rice drying rate.

Taxon
rough ricee0
Treatment
Increasing the husk to rough rice ratioe0
Outcome
rough rice-drying ratee0
Direction
decreasede0

Not reportedComparator

Verbatim

e0

“Increasing the husk to rough rice ratio decreased the rough rice-drying rate”

✓ located verbatim in the source · abstract, characters 816–892 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest drying rate was 3.87%/h during the first hour at 97oC and 1:2 ratio.

Outcome
drying ratee0
Direction
higheste0
Value
3.87%/he0
Qualifier
the first houre0

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 highest drying rate of 3.87%/h was achieved during the first hour after the mixing process under the husk temperature of 97oC and the husk to rice ratio of 1:2”

✓ located verbatim in the source · abstract, characters 894–1057 · show in text ↑