Wed, 05/30/2018 - 20:37

Chemical Analysis

Chemical analysis provides important insights regarding the type and quantity of ingredients in food and animal feed. The goal of the examination can, for example, be a comprehensive nutrient analysis (“Big 7”) or the determination of individual additives.

We analyze samples using photometry, chromatography, chemical-physical and enzymatic examination methods. We are happy to assist you with our years of experience and state-of-the-art laboratory equipment.

Determination of the Crude Fiber Content

Determining crude fiber content is especially important in animal feed analysis. For meat and meat products, it can performed instead of a dietary fiber determination when appropriate.

Determination of Additives

We can analyze products for the following additives:

  • Nitrite / nitrate (photometric detection)
  • (photometric or thin layer chromatographic detection after extraction)
  • L-glutamic acid (enzymatic detection)
  • Sweeteners (see Instrumental Analytics)
  • Preservatives (see Instrumental Analytics)
Nutrient Analysis (Big 7)
  • Water
  • Total protein
  • Fat
  • Ash
  • Sodium
  • Saturated fatty acids
  • Sugar

Depending on the product, it may make sense to also determine the fiber or alcohol content. Based on the results of the analysis, we can calculate the calorific value, sodium content and carbohydrate content.

Complete Analysis for Meat Products

To assess the relevant parameters such as BEFFE or FE in the fat-free portion, we determine the water content, total protein, fat and hydroxyproline of the meat product. If foreign egg-white is present, it should be determined separately, if possible (e.g. wheat protein from flour via starch or milk protein).

Sugar Determination

The analysis of the total sugar content is computed via the determination of glucose, fructose, sucrose, maltose and lactose. When needed, the individual sugars can also be determined enzymatically.

Chemical-Physical Analysis

We can perform the following analyses:

  • Weight tests
  • Determination of protective gas
  • Preparatory gravimetric examination
  • aw-value measurement
  • And more

Contact

Sascha Kaltenbach
Associate Director, Laboratory Operations, Food Safety & Dietary Supplements
envelopeskaltenbach@nsf.org