Claim · model-written summary
A 1.4% KOH concentration maximized score spread among rice varieties.
- Taxon
- rice
Oryza sativat0 - Outcome
- spread of the scorese0
- Direction
- maximume0
- Value
- 1.4% KOHe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A concentration of 1.4% KOH was found to give the maximum spread of the scores among different varieties.”
t0“rice”
Title
An improved alkali reaction test for rice quality
K. R. BHATTACHARYA; C. M. SOWBHAGYA International Journal of Food Science & Technology 1972. doi:10.1111/j.1365-2621.1972.tb01667.x
Other claims from this paper (11)
- Method / resource A nine-point alkali reaction score was devised from successive rice kernel degradation stages.
- Observation Each rice variety was first attacked at a particular potassium hydroxide concentration.
- Observation Each variety was almost fully degraded at a potassium hydroxide concentration 0.7‐0.8% higher.
- Method / resource Nine degradation stages were distinguished from residual chalky substance, collar diameter and consistency.
- Method / resource The test could be conducted in ordinary Petri dishes at room temperature for 18–24 hr.
- Observation Rice varieties exhibited three alkali reaction types.
- Observation Type A reaction showed progressive cracking and corrosion.
- Observation Type B reaction showed progressive grilling and cottony transformation.
- Observation Type C reaction showed kernel opening, splitting and gradual dense cottony transformation at increasing KOH concentration.
- Observation Most indicas had type A reaction.
- Observation Most japonicas had type C reaction.