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Nitrogen and Protein Determination by Kjeldahl and Dumas Methods

Protein content in food and feed is derived from nitrogen measured by Kjeldahl digestion or Dumas combustion. Each method has its own controls, hazards and calculation factors. This course builds reliable practice in nitrogen and protein determination.

What you will be able to do

  • Compare the Kjeldahl and Dumas approaches
  • Perform digestion, distillation and titration safely
  • Operate combustion nitrogen analysers
  • Apply the correct nitrogen to protein factors
  • Control quality and troubleshoot both methods

Course outline

  1. 01Nitrogen as a proxy for protein
  2. 02Kjeldahl digestion and distillation
  3. 03Titration and calculation
  4. 04Dumas combustion analysis
  5. 05Nitrogen to protein factors
  6. 06Safety and reagent handling
  7. 07Quality control and troubleshooting

Who should attend

Food and feed laboratory technicians, analysts and quality staff who determine protein content in products and raw materials.

Dates, venues and fees

DatesVenueDaysFeeCalendar
17 to 18 Aug 2026Durban2R10,000
24 to 25 Aug 2026Johannesburg2R10,000
7 to 8 Sep 2026Mauritius2US$1,100
14 to 15 Sep 2026Dubai2US$1,100
21 to 22 Sep 2026Lagos2US$1,100
28 to 29 Sep 2026Harare2US$1,100
5 to 6 Oct 2026Kampala2US$1,100
12 to 13 Oct 2026Dar es Salaam2US$1,100
19 to 20 Oct 2026Pretoria2R10,000
26 to 27 Oct 2026Cape Town2R10,000
9 to 10 Nov 2026Online2US$900
16 to 17 Nov 2026Mozambique2US$1,100
23 to 24 Nov 2026Cairo2US$1,100
30 Nov to 1 Dec 2026Accra2US$1,100
7 to 8 Dec 2026Lusaka2US$1,100
14 to 15 Dec 2026Kigali2US$1,100
21 to 22 Dec 2026Nairobi2US$1,100

Fees are per delegate. South African venues are priced in rand; other locations and online in US dollars. Fees exclude 15% VAT where applicable. Group bookings of three or more delegates from the same organisation qualify for a reduced rate; contact us for a quotation.

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