Microwave heating to prevent deterioration of cottonseed during storage

Autor: Conkerton, E. J., Schneider, G. R., Bland, J. M., Marshall, H. F., Goynes, W. R.
Zdroj: Journal of the American Oil Chemists' Society; November 1991, Vol. 68 Issue: 11 p834-839, 6p
Abstrakt: Fuzzy cottonseed samples of 14.5% moisture and <1.0% free fatty acids (FFA) contents heated in a conventional, home-style microwave oven at 700W and 2450 MHz for intervals up to 2.0 min. The 2.0-min treatment reduced the moisture content to 13.1%. Examination of the seed immediately after microwave heating (MWH) indicated no differences in the proteins or in the quality or quantity of the cotton linters as compared with unheated seed. Neither the oil content of the seed nor the quality of the oil were affected by the microwave treatment. After nine weeks of storage at 50°C, the unheated seed had a FFA content of >3.0% while the FFA content of the 2.0-min microwave-heated seed remained <1.0%. During this storage period there was significant deterioration of the protein quality of the unheated seed. The 2.0-min MWH treatment, however, maintained the integrity of the protein during storage.
Databáze: Supplemental Index
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