Submitted to: Annual Meeting and Expo of the American Oil Chemists' Society
Publication Type: Abstract Only
Publication Acceptance Date: May 16, 2001
Publication Date: N/A
Technical Abstract: Alternative oilseed crops are frequently processed by a mechanical expeller/press to obtain oil for specialty applications. The relatively low volumes and high economic value of these materials present a challenge to processors to optimize oil yields for a variety of seeds with a conventional screw press. Laboratory studies were conducted to identify optimal temperature and moisture levels for oil yield and quality. A statistical experimental design was followed to obtain data on cuphea, meadowfoam, milkweed, and salicornia seeds. Oil yields were generally observed to increase with increasing temperature within the range of 60-100 C and exhibited maxima with moisture levels between 5 and 10%. Oil quality was determined from free fatty acid, peroxide value, and color measurements. Response surfaces were generated from these data which display oil quality and yield as a function of seed moisture and temperature.