November 27, 2019

Technological recommendations when using methionine sources in the feed mill

by Marc Perel, Solution Application Manager, Adisseo

Methiopedia 2, the technical reference guide for methionine edited by Adisseo at the end of 2018 has a full part dedicated on the application of methionine sources in feed. In this article, we will investigate these technological aspects for an accurate and safe use of methionine sources in feed production.

Indeed, liquid and powder methionine products (liquid OH-Methionine, DL-Methionine or L-Methionine) require proper equipment and use in the process. To obtain an optimum feed quality, main process stages need to be managed regarding this methionine addition.
 

Main vigilance points at the feed production when adding methionine sources
Specific equipment is available for the distribution of powder and liquid methionine sources in feed. This addition is performed in the mixer, but the transfer from the storage point till the mixer and the supplementation in the right quantity need to be mastered to achieve the expected quality of the feed. Indeed, methionine products have to be added at the quantity defined by the formulator and this, for every single batch.

Three main process steps require a right equipment implementation and settings, and a regular monitoring: storage, dosing and distribution.

Safety comes first when speaking about the use of additives or raw material in process. For powder and liquid methionine sources, the safety data sheets have to be accessible easily and quickly in the plant in case of any accident. Before any maintenance intervention, everyone from the plant staff or any external company - maintenance contractor for instance - should be aware of the risks and wear the appropriate PPE (Personal Protective Equipment) such as mask, goggles, plastic gloves, covering suit, etc.

During regular control visits, the presence of these PPE, of risks labelling and spill kits will be verified. One will also check the proper functioning of the shower and eye wash station if any, for the liquid installations.

Storage
Powder sources of methionine (L-Methionine or DL-Methionine) can also be packed in bags or big-bags, that will be stored inside the warehouse protected from humidity and weather. These forms are directly used by the feed mill or come through the premixes.

Liquid OH-Methionine (OH-Met) is packaged in drums or IBCs that can be stored outside to save internal space in the feed mill. The product is also delivered in bulk for a storage in tanks before use. According to the local regulation, a containment pool may be needed.

Preferred tank materials are:
- Poly Ester reinforced by fiberglass
- PEHD Poly Ethylene High Density
- Stainless steel 316L

Tanks can be insulated according to the temperature conditions and wind exposure. Heating the product by a coil inside the tank is not preferred, and a double-jacket heating system (thermal oil) at the daily-tank is far better.

Read more HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


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