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Quantitative measuring instruments: experimental study applicable to the dairy industry - turbidimetry, refractometry and viscosimetry


Quantitative measuring instruments: experimental study applicable to the dairy industry - turbidimetry, refractometry and viscosimetry



Industries Alimentaires et Agricoles 94(9/10): 945-960



In an experimental study of methods for continuous determination of the protein content (in DM) of ultrafiltered whey concentrate, a Sigrist (Polymetron) turbidimeter gave disappointing results, as variations in turbidity and protein were not proportional (inversion of the curve at 8-15 g/l., depending on the wavelength of the incident light). Refractometry results were affected by lactose and minerals, although there was a good correlation between refractive index and SNF content.

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Accession: 000475119

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