Physical Properties Evaluation of Rice Bran Forgery with Corn Cob Addition

Ridla Muhammad; Rima Martin; Nahrowi Nahrowi; Nahdhiyah Alhasanah; Markistiandi Fadhilah

doi:10.25047/jipt.v6i1.3203

Authors

Ridla Muhammad IPB University
Rima Martin IPB University
Nahrowi Nahrowi IPB University
Nahdhiyah Alhasanah IPB University
Markistiandi Fadhilah IPB University

DOI:

https://doi.org/10.25047/jipt.v6i1.3203

Keywords:

corn cob, forgery, physical properties, rice bran

Abstract

The objective of this study was to evaluate physical properties of rice bran forgery with corn cob addition. Corn cob mixed with rice bran by different levels 0%, 5%, 10%, 15%, and 20%. The experimental design was completely random design (CRD) with 5 treatments and 3 replications. The data were analyzed by ANOVA and followed by orthogonal contrast test if there were significant differences between the treatments. The results showed the addition of corn cob (0%, 5%, 10%, 15% and 20%) significantly (P<0.01) decreased the specific gravity (kg L^-1) by 1.36, 1.32, 1.26, 1.20 and 1.16 (r = 93%), bulk density (g L^-1) by 286.53, 283.02, 275.74, 268.35 and 263.86 (r = 98%), compact bulk density (g L^-1) by 475.44, 463.69, 453.18, 443.14 and 433.53 (r = 99%) and angle of repose (˚) by 44.40, 43.91, 43.27, 43.15 and 42.70 (r = 93%) while the particle size (mm) increased by 1.22, 1.23, 1.23, 1.24 and 1.25 (r = 95.8%). Detection of rice bran forgery can be evaluated through physical test correlation and the highest correlation is found in the compact bulk density parameter.

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