pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-3-1-13 Articles Moisture Contraction of Spanish Peanuts1 Marvin R. Paulsen 2 and Gerald H. Brusewitz 3 Research Associate, Agricultural Engineering Department, University of Illinois, Urbana, II. 61801 Associate Professor, Agricultural Engineering Department, Oklahoma State University, Stillwater, Ok. 74074

1Journal Article No. 3048 of the Oklahoma Agricultural Experiment Station.

 1 1976 1 1976 3 1 52 55 American Peanut Research and Education Society 1976 American Peanut Research and Education Society Abstract

The linear coefficient of moisture contraction for skinned Spanish peanut kernels was determined at 40°C and at 20, 42, 70, and 80% drying air relative humidities. Kernel lengths and diameters were measured optically with a microprojector. Cubical coefficients of moisture contraction were calculated from the linear-coefficients by approximating peanut volume by a prolate spheroid shape. Cubical coefficients ranged from 5.5 to 7.71 × 10-3 cm3/cm3 % MC and generally increased as drying air relative humidities increased.