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Protein Determination in Probiotic Drink According to the Kjeldahl Method

Velp Scientifica
22 Sept 2015

A probiotic is a live microbial food ingredient that beneficially affects the host through its effects in the intestinal tract. These products favorably influence digestive functions and colonic flora. This application note describes a method for protein determination in probiotic drinks following the Kjeldahl method. Kjeldahl is nowadays the most used method for determining nitrogen and protein contents in foods and feeds, thanks to the high level of precision and reproducibility and to its simple application.

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KjeldahlKjeldahl is an analytical chemistry technique for the quantitation of nitrogen in chemical substances. Applications of Kjeldahl include analyzing the protein content of food, nitrogen analysis in environmental sciences and the pharmaceutical industry and total kjeldahl nitrogen, nitrate and ammonia analyses in agricultural sciences.Food and Beverage AnalyzersFood and Beverage Analyzers are commonly used to provide information about the chemical composition, structure and physical properties of food materials.Protein QuantificationThe detection and quantification of proteins in a sample is vital across life sciences, pharmaceutical research and clinical diagnostics, and a variety of equipment is available to scientists to simplify the workflow. Proteins of interest can be easily labeled and detected on light-based detection instruments. Immunoassay kits allow you to identify a specific protein of interest and protein detection beads or antibody microarrays allow you to identify multiple specific proteins at once. Protein interactions and enzyme activity can also be monitored with protein-protein interaction assays. Additionally, the biophysical characterization of proteins is made easy with biokinetic analyzers. Find the best protein detection and quantification products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.Beverage AnalysisBeverage analysis involves testing and evaluating the composition, quality, and safety of drinks, from alcoholic beverages to soft drinks. Techniques like chromatography and spectroscopy are commonly used to analyze flavors, nutrients, contaminants, and additives. Browse our peer-reviewed product directory to find the best beverage analysis tools, compare products, check reviews, and get pricing directly from manufacturers.

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