Physical Properties of Indica Rice in Relation to Some Novel Mechanical Properties Indicating Grain Characteristics
2012
Mohapatra, Debabandya | Bal, Satish
Various physical, chemical, and mechanical properties of three indica varieties of rice were investigated. The rice varieties were categorized into extra long-and-slender, medium, and short-and-bold types, based on their length and slenderness ratio, with amylose contents 16.7, 22.6, and 26.4%, for ADT37, Swarna, and Pusa Basmati, respectively. Brown rice samples were milled to different degrees, and various mechanical properties like wear index and milling coefficient were devised to characterize the rice quality. Wear index, which is the indicator of polishing behavior, was found to vary 0.1–0.02 g/min for 2–18% degree of milling. Milling coefficient, an indicator of surface area requirement for different varieties of rice, was found to be higher for long-and-slender type of rice.
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