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The parameters mentioned in the previous chapter, Product Specification,
are guaranteed by Adisseo. Table 1 summarizes additional parameters
that are helpful for using Rhodimet™ NP 99 in the most efficient
way. The data given in Table 1 are representative of tested batches,
but results may vary from one sample to another. Therefore, these
numbers cannot be considered as a guaranteed characteristic or as
a specification of Rhodimet™ NP 99.
Table 1
Particle Size Distribution
<50µm
50-100µm
> 100µm
|
See pictures*
20%
30%
50% |
| Apparent Density (AD) |
0.74 |
| Tapped Density (TD) |
0.85 |
| Compressibility (100 (TD-AD)/TD) (%) |
12.94 |
| Angle of repose |
41° |
| Nitrogen Content (%) |
9.4% |
| Solubility (g/l at 25°C) |
33.8 |
| pH (in 1% aqueous solution) |
5.6 to 6.1 |
*Pictures to compare the particle size distribution of different
methionine sources (on the next page)
As an example, Table 1 summarizes results of an analysis of the
particle size distribution. Generally more than 50% of the particles
are larger than 100µm. Only 20% of the particles are smaller
than 50µm. However, results of an analysis of the particle
size distribution may vary for the two reasons listed below and
are therefore not part of the specifications for Rhodimet™
NP 99.
- Results of particle size distribution analysis will vary based
upon the method used. Therefore, it is crucial that comparisons
will only be made from results using the same method of analysis.
- Even if the same method of analysis is used, the repeatability
of the results is very low. In other words, even with the same method
of analysis and the same sample of DL-methionine, results may differ
significantly when compared with the repeatability of other methods
of analysis.
Table 2: Matrix Specification
| Methionine Content (%) |
99 |
| Crude Protein (N x 6,25) (%) |
58.7 |
| Metabolizable Energy - Poultry (estimated) |
21.0 MJ/kg 5020 kcal/kg 2277
kcal/lb |
| Metabolizable Energy - Swine (estimated) |
22.1 MJ/kg 5280 kcal/kg 2395
kcal/lb |
| Digestible Energy - Swine (estimated) |
24.1 MJ/kg 5750 kcal/kg 2608
kcal/lb |
| Net Energy - Swine (estimated) |
13.5 MJ/kg 3225 kcal/kg
1463 kcal/lb |
Pictures: Particle Size Distribution
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DL-Methionine Russia
Calibration factor: 2.68
Magnitude: 0.8 X 32
Angle of repose: 57
AD: 0.33
TD: 0.59
Compressibility: 44.07
Cohesiveness: 1.79
> 500 µm: 0.2 %
< 160 µm: 73.5 %
D50: 230 µm
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Rhodimet™ NP 99
Calibration factor: 2.68
Magnitude: 0.8 X 32
Angle of repose: 41
AD: 0.74
TD: 0.85
Compressibility: 12.94
Cohesiveness: 1.15
> 500 µm: 17.5 %
< 160 µm: 38.2 %
D50: 230 µm
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DL-Methionine China
Calibration factor: 2.68
Magnitude: 0.8 X 32
Angle of repose: 52
AD: 0.38
TD: 0.65
Compressibility: 41.54
Cohesiveness: 1.71
> 500 µm: 0.2 %
< 160 µm: 84.3 %
D50: Impossible to determine
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