Nitrogen and protein determination in pasta

Nitrogen and protein determination in pasta according to the Kjeldahl method (back titration)

Protein determination is one of the key analyses performed in the food industry. The samples require digestion with sulfuric acid to convert nitrogen into ammonium sulfate. After conversion to ammonia through the alkalinization with sodium hydroxide, the sample is distilled into a sulfuric acid receiver by steam distillation, followed by a back titration with sodium hydroxide solution. The nitrogen content is multiplied by a sample-specific factor (6.25 for pasta) to obtain the protein content.

Register for download

First name

Last name

Company/University

Industry

Phone number

Country

We would like to send you other relevant information in the future e.g. application notes, guidebooks, webinar and seminar invites, which might be of interest to you. Therefore, we would like to request your consent to stay in touch. You can find out about your rights and how we use and process your personal information in our Privacy Policy.

I confirm that I have read and agree to the Privacy Policy of www.buchi.com.

I allow www.buchi.com to send me marketing materials.