The Effects of Machinery Configuration in Small Rice Mill
to Rice Milled Quality and Yield
Budi Raharjo*1), Renny Utami Somantri1),Syahri1), Suismono2)
1)South Sumatera Assessment Institute for Agricultural Technology
Jl. Kol. H. Barlian No. 83 Km. 6 Palembang, South Sumatera
Telp. 0711-410155, Fax. 0711-411845
2)Indonesian Center for Agricultural Postharvest Research and Development
Small rice mills are one of an important end parts in rice supply that also responsible to the improvement of national rice production. In Indonesia, most of small rice mills apply the simplest machinery configuration consisting old husker and polisher. Improvement of machinery configurations in rice mills may improve rice milled quality and yield. The study is aimed to study the effects of machinery configurations in small rice mills to rice milled yield and quality especially head rice percentage. The activities carried out in Banyuurip village,Tanjung Lago sub-district, district of Banyuasin in South Sumatera since July to September 2016. Machinery configuration that was examined were A) Husker – Polisher (H-P); B) Husker – Polisher1 – Polisher2 (H-P-P); C) Cleaner-Husker 1- Husker2 – Polisher1 – Polisher 2 (C-HH-P-P), and D) Cleaner – Husker 1- Separator – Husker2- Polisher1 – Polisher2 (C-H-S-H-PP). Each configuration was tested three time, using 100 kg of dry unhusk rice as basis and ricevarieties TW. Data collected include moisture content (grain and rice), yield, physical quality
(head rice, broken rice, brewers, grain yellow/damaged grain, chalky/immature grain,
whiteness) following rice quality mentioned SNI 6128: 2015, and organoleptic test on the rice produced. The results showed that treatment D (C-H-S-H-P-P) gave the highest yield that was 67.2%. In addition, rice quality was also exhibited improvement such as percentage of head rice 57.67%, broken rice 40.01%, brewers 1.2%, yellow/damaged grain 0.39%. However, the results of organoleptic tests showed that in fact the treatment B (H-P-P) preferred by panelists by score 3.86 (out of 5.00). Hence, these results showed that the machinery configuration in small rice mills is indeed improve rice milled quality and yield.
Keywords: machinery configuration, small rice mill, rice milled quality, yield.
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