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Method for the contactless and non-destructive determination of a proportion of at least one free fatty acid or at least one oxidation product on a surface of a foodstuff or animal feed
Method for the contactless and non-destructive determination of a proportion of at least one free fatty acid or at least one oxidation product on a surface of a foodstuff or animal feed
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机译：非接触和非破坏性测定除食品或动物饲料表面上的至少一种游离脂肪酸或至少一种氧化产物的比例的方法
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摘要
Method for the contactless and non-destructive determination of a proportion of at least one free fatty acid and / or at least one oxidation product on a surface of a food or feed (1), in which the surface of the food or feed to be examined (1) is caused by a radiation source (2) is irradiated with electromagnetic radiation (3) with at least a first individual wavenumber from a range of the mid-infrared light at a first point in time and with at least a second individual wavenumber from the range of the mid-infrared light at a second point in time, and a diffuse on the surface of the to be examined Food or feed (1) scattered or reflected portion (4) of the electromagnetic radiation (3) directed to a detector (5) and detected time-resolved and spectrally resolved and with an evaluation unit (6) spectrally with regard to the presence of at least one for the at least one free fatty acids ure and / or the at least one oxidation product characteristic absorption line is analyzed.
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