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<< Milwaukee Photometers for Wine Processing |
Milwaukee MI490
Peroxide Value Photometer for Oil
Making Analysis
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- Monitors Tartaric Acid Levels in wine analysis
- User Friendly
- Advanced Optical System
- Uses a special tungsten lamp
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Milwaukee MI490
Shown
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Milwaukee Mi490 is a user-friendly
photometer for monitoring peroxide value in the process of oil making.
This instrument will give you direct readings, with a range of 0.0 to
25.0 meq O2/Kg.
The measurement of the oil's chemical degradation is the peroxide value,
which measures the degree to which the oil is oxidized. Rancidification
is the decomposition of fats and other lipids by hydrolysis and/or
oxidation. Hydrolysis will split fatty acid chains away from the
glycerol backbone in glycerides. These free fatty acids can then undergo
further auto-oxidation. Oxidation primarily occurs with unsaturated fats
by a free radical-mediated process.
One of the most widely used tests for oxidative rancidity, peroxide
value is a measure of the concentration of peroxides and hydroperoxides
formed in the initial stages of lipid oxidation. Milliequivalents of
peroxide per kg of fat are measured by titration with iodide ion.
Peroxide values are not static and care must be taken in handling and
testing samples. It is difficult to provide a specific guideline
relating peroxide value to rancidity. High peroxide values are a
definite indication of a rancid fat, but moderate values may be the
result of depletion of peroxides after reaching high concentrations. |
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Specifications |
| Range |
0.0 to 25.0 meq O2/Kg |
| Resolution |
0.5 meq O2/Kg |
| Accuracy |
±0.5 meq O2/Kg |
| Light Source |
tungsten lamp with
narrow band interference filter @ 525 nm |
| Sensor |
silicon photocell |
| Method |
adaptation of the CE n. 2568/97 method |
| Environment |
0 to 50°C; max RH 95% |
| Power supply |
Type |
4 x 1.5V AA (included) |
| Auto-off |
after 15 minutes of
non-use |
| Dimensions |
Size |
225 x 85 x 80 mm |
| Weight |
0.5 kg |
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| Ordering Information |
| Model |
Description |
Buy Online |
Price |
| MI490 |
Milwaukee MI490 Peroxide Value Photometer for Oil Making Analysis |
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Sale $730.77
(Reg. $845.00) |
| Included Accessories |
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- 1 - Reagents for 20 tests
- 4 - 1 mL syringe
- 1 - tissue for wiping cuvets
- 4 - 1.5V AA batteries
- 1 - Instruction manual
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Included |
| Optional Accessories |
| MI590021 |
Milwaukee Mi590-021 Peroxides reagent set (21 tests) |
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Sale $45.38
(Reg. $59.00) |
| MI0001 |
Milwaukee MI 0001 10ml glass curvette for photometers (2 pieces) |
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Sale $8.46
(Reg. $9.50) |
| MI0002 |
Milwaukee MI 0002 Cap for glass curvette (Mi0001) (2 pieces) |
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Sale $4.62
(Reg. $5.00) |
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