Updated reporting of fat nutrients in MyNutriOpt
From now on two fat nutrients will be displayed in MyNutriOpt; Crude Fat (ee) and Crude Fat (ah).
Fat Soxhlet extraction [Crude Fat (ee) |
This was originally designed for the extraction of a lipid from a solid material. Typically, Soxhlet extraction is used when the desired compound has a limited solubility in a solvent, and the impurity is insoluble in that solvent. It allows for an unmonitored and unmanaged operation while efficiently recycling a small amount of solvent to dissolve a larger amount of material. |
Fat extraction with acid hydrolysis [Crude Fat (ah)] |
Some parts of a fat or fatty acids are not soluble in ether extract. For example, all soaps (fatty acid bound to a mineral) are not detected according to the fat Soxhlet method. Acid hydrolysis can be performed to release the bound lipids attached to protein and carbohydrates in order to enhance the extraction efficiency. Therefore a pre-treatment of the acid hydrolysis needs to be done. |
- Not all ingredients do have values for both fat nutrients
- Derived energy values for swine and poultry will increase by this action due to the (calculated) higher values for Crude Fat (ah) compared to Crude Fat (ee)
How will your daily calculations be impacted by this fat analysis update?
For more information, please consult the in-depth presentation by Willy Nielen, Formulation & Nutrition Manager at Trouw Nutrition. Additionally, Nielen delved in the topic during a webinar. The recording is now available.
Webinar: Fat analysis methods
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