A simple and reliable procedure for the oil determination in peanut samples is introduced. This Application Note follows the official method AOCS Ab 3-49 by the American Oil Chemists` Society. The standard method AOCS Ab 3-49 requires an extraction with a Butt-type extraction apparatus with an extraction time of twice 2 h. In between the two extractions there is a further homogenization step. The Butt-type extraction is equal to the Twisselmann extraction method used in the FatExtractor E-500 ECE. Both, the Butt-type extractor as well as the Economic Continuous Extraction (ECE) are continuous extractions where the sample is constantly kept in hot solvent vapor whilst efficiently rinsed with freshly distilled solvent. The oil content is determined gravimetrically after the extract has been dried to a constant weight. This Application Note shows by means of a certified reference material sample that reliable and reproducible results will be received using the FatExtractor E-500 ECE.
FatExtractor E-500 ECE: Determination of oil content in a peanut sample by Twisselmann extraction according to AOCS Ab 3-49
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