Effect of milling operations on grain quality and price in selected Philippine rice mills
1989
Bonifacio, E.P.
This study was conducted to assess how rice quality is affected by milling and pre-milling operations and to determine the relationship between price and rice (paddy and milled rice) quality using a hedonic pricing model. The results indicate that paddy quality in different mill types (commercial, village rubber roll, and Engleberg mills) did not differ significantly. However, the quality of output rice differed significantly with commercial mills producing the highest percent head rice. Considering the quality of input paddy, commercial milling systems did not contribute significantly to the reduction in milling recovery whereas there were significant losses when using village rubber roll and Engleberg mills. The hedonic pricing model demonstrated that millers value moisture content and shape in the dry season and shape and potential whiteness in the wet season when purchasing paddy. When disposing of milled rice, no significant seasonal differences were observed. Shape and apparent amylose content were significant factors affecting price of milled rice. The finding confirm that mill type affects rice quality and that millers attach economic significance to specific grain quality characteristics. Considering the incentives to improve grain quality, refinements in existing technologies to achieve marginal improvements in grain quality may be the most cost effective means to raise quality standards in rice processing systems.
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