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Food Science & Technology

Effects of machine-crop parameters on mechanical grain damage in rice threshing

ORCID Icon, , , , &
Article: 2367381 | Received 20 Oct 2023, Accepted 09 Jun 2024, Published online: 21 Jun 2024

Figures & data

Figure 1. The test thresher (a) during testing (b) threshing cylinder (c) threshing concave.

Figure 1. The test thresher (a) during testing (b) threshing cylinder (c) threshing concave.

Table 1. Details of experimental factors and levels.

Table 2. Grain dimensions and maximum breaking force in bending.

Figure 2. Flowchart for the experimental procedure.

Figure 2. Flowchart for the experimental procedure.

Table 3. ANOVA results for effects of VAR, MC, DS, SS and their interaction on fissured and broken grain.

Figure 3. Mean fissured grain (%) at different level of MC, (a) experimental group (b) control group.

Figure 3. Mean fissured grain (%) at different level of MC, (a) experimental group (b) control group.

Figure 4. Mean broken grain (%) at different level of MC, (a) experimental group (b) control group.

Figure 4. Mean broken grain (%) at different level of MC, (a) experimental group (b) control group.

Table 4. Contribution of pre-threshing fissured and broken grain to the overall grain damage.

Figure 5. LS mean (a) fissured, and (b) broken grain, at different drum peripheral speed.

Figure 5. LS mean (a) fissured, and (b) broken grain, at different drum peripheral speed.

Figure 6. LS mean (a) fissured, and (b) broken grain, at different drum peripheral speed.

Figure 6. LS mean (a) fissured, and (b) broken grain, at different drum peripheral speed.

Figure 7. Effects of interactions of independent variable of fissured grain, a) MC versus DS, b) DS versus SS and c) MC versus SS, on fissured grain.

Figure 7. Effects of interactions of independent variable of fissured grain, a) MC versus DS, b) DS versus SS and c) MC versus SS, on fissured grain.

Figure 8. Effects of interactions of independent variable of on grain breakage a) MC versus DS, b) DS versus SS and c) MC versus SS.

Figure 8. Effects of interactions of independent variable of on grain breakage a) MC versus DS, b) DS versus SS and c) MC versus SS.

Table 5. Regression results for fissured grain (%) for different threshing conditions.

Table 6. Regression results for broken grain (%) for different threshing conditions.

Data availability statement

In accordance with the principles of open and transparent research, the data that support the findings of this study are available upon request. Researchers and interested parties can contact the corresponding author with email [email protected] to request access to the data. Please note that, the data will be shared upon request with no other special requirements.