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Milling Yield of Different Rice Varieties- 1991

Nurul Hoque Choudhury
Chief Scientific Officer and Head
Grain Quality and Nutrition Division

Bilkis Banu
Senior Scientific Officer
Grain Quality and Nutrition Division

Fatema Begum
Senior Scientific Officer
Grain Quality and Nutrition Division

Sunil Kumar Biswas
Senior Scientific Officer
Grain Quality and Nutrition Division

Khandaker Aminul Kabir
Principal Scientific officer
Grain Quality and Nutrition Division

Abstract/ Executive Summary:

A milling yield potentiality study of BRRI recommended rice varieties in the commercial rice mill showed milling yield of nine boro varieties varying from 68 to 72%. BR1 had the highest and BR7 had the lowest milling yield. Milling yields of these varieties varied between 70-72%. BR14 had 71% milling yield. Milling yield of more than 70% in considered satisfactory. All the varieties had acceptable range of breakage. Evidently, BRRI recommended rice varieties had satisfactory milling yield in the commercial rice mill.

Keywords: Head rice, Milling outturn and Breakase

Location: Grain Quality and Nutrition Division laboratory, BRRI HQ

Start Date: 01-07-1990

End Date: 01-06-1991

Program Area: Quality and Nutrition

Commodity: Rice

Objectives:

To determine milling yield of BRRI recommended rice varieties in commercial rice mills.

Methodology:

Twenty kilograms of BR1, BR3, BR6, BR7, BR8, BR9, BR12, BR14 and BR16 rice seeds from the Aus season were used for this purpose. The rough rice was soaked for 36 hours and parboiled to hull opening. They were sundried and milled in the commercial rice mill.

Source of Information: BRRI Annual Report 1990-1991

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

BR1 had the highest and BR7 had the lowest milling yield. BR1 had short bold grain and BR7 had long slender grain. BR6 and BR16 had also long slender. They had respectively, 71 and 72% milling yields. BR3, BR8, Br9, Br12 and BR14 had medium bold grains. Milling yields of these varieties varied between 70-72%. BR14 had 71% milling yield. Milling yield of more than 70% in considered satisfactory. Broken rice varied from 5 to 13%. The study confirmed that the test varieties had satisfactory milling yields. The complaining rice millers might have wrong identification of varieties.

Knowledge Management: Report/Proceedings