UDY Protein Analyzers

Low Cost Protein Test Colorimeters

Proven Technology Since 1960

Quick, Easy, Affordable Total Protein Analysis with Non Hazardous Chemicals


UDY Advantages:
High Correlation with Kjeldahl, Combustion 99+% Direct Protein Readout (%) Easy Operation System can be Customized to your Needs, Budgets, etc. Non Hazardous Chemicals Modest Cost Per Test Precise, Accurate and Reproducible State of the Art Electronics and Optic System Optional UDY "Assist" Software Uses Proven Dye Binding Technology Applicable to Many Different Commodities 110v or 220v 50/60 Hz Available	Milk Protein System (MKP)

Some Typical Applications:

Alfalfa
Alfalfa Haylage
Barley
Beans
Bermuda Grass
Blue Grass
Caseinate-Pwd.
Cheese-Hard
Chickpeas
Corn
Corn Silage
Cottonseed Meal
Cowpeas
Eggs
Fishmeal

Gainesburger
Graham Cracker
Grass Peas
Lentils
Linseed Meal
Malted Barley
Meat - Hi Lean
Meat - Lo Lean
Milk - Fluid Prod.
Milk - Powders
Mungbeans
Mustard Meal
Mustard Seed
Oats

Oat Groats
Orange Juice
Peanut Meal
Peas
Pigeon Peas
Rape Seed/Meal
Rice
Roman Meal Bread
Rye
Safflower Meal
Sesame Meal
Sorghum (Milo)
Soy Beverage
Soybean Hulls
Soybean Meal

Soybeans
Sunfower Meal
Triticale
Urd Beans
Waste Water
Wheat
Wheat-Flour
Wheat Germ Meal
Wheat Gluten
Whey/Milk Based Beverages
Whey-Delactose
Whey-Fresh Pwd.
Whey-Fresh Vat
Whey-Prot. Conc.
Yeast (Torula)


Model	Application	Instruments & Main Accessories Needed	Accuracy & Speed
MKP	Protein in milk, soy, OJ & other liquids.	UDY Colorimeter, Syringe Pipet, Electronic Balance.	0.02% Protein accuracy; 30 second analysis*.
MT-DP	Protein in all meats & dairy products.	UDY Colorimeter, Reagent Dye Dispenser, Electronic Balance, Blender & Syringe Pipet.	0.2% Protein accuracy typical; 30 second analysis*.
SSP	Protein in grains, forages, etc. Single sample fast test.	UDY Colorimeter, React-R-Mill, Reagent dye Dispenser, Electronic Balance, Cyclone Sample Mill.	0.2% Protein accuracy typical; 2 minute analysis*.
MSP	Protein in legumes, oilseeds, etc. Multiple sample testing.	UDY Colorimeter, React-R-Shaker, Reagent Dye Dispenser, Electronic Balance, Cyclone Sample Mill.	0.2% Protein accuracy typical; Average time per sample, 1 minute. excluding sample preparation

Main Accessories:


Mills	UDY Pol Preservative	React-R-Shaker React-R-Mill	Reagent	Dispensers	Balances & Blenders	Optional "Assist" Software

Principle of Protein Measurement
Protein measurements are made by mixing weighed samples with known volume of Reagent Dye Solution containing an excess of Acid Orange 12 dye. Proteins in the sample react with the dye to form a precipitate. The remaining unreacted dye concentration is inversely proportional to the protein content of the sample.

The UDY Colorimeter is used to measure the dye concentration and display the percent protein in samples directly. Because a flow-thru cuvet is used, the cuvet does not require washing or rinsing. Sample bottles may be reused without cleaning between samples This measurement does not require calibration with standard samples because Acid Orange 12 dye is easily purified and serves as its own primary standard.

Milk and meat homogenates react in seconds with simple shaking. Dry samples, such as grains, react slowly, but use of the patented React-R-Mill enables a complete reaction to be achieved within one minute. Total analysis time can be as short as 30 seconds for milk and 2 minutes for wheat.

U.S. Patent numbers 3010666, 3010614 / * U.S. Patent number 3754715

Basic Steps: Fluid Milk & Other Liquids
Protein Measurement, 3 Easy Steps


1. Aspirate or weigh an aliquot of milk & transfer into sample bottle.	2. Dispense Reagent dye into sample bottle. Shake 10 seconds.	3. Squeeze-filter 25-30 drops into colorimeter cuvet and read % Protein Directly.


All Meat & Dairy Products Protein Measurement, 4 Easy Steps


1. Homogenize sample as needed using blender.	2. Remove an aliquot of homogenate with Syringe Pipet, or Weigh into Bottle.	3. Add Reagent Dye Solution to Aliquot. Shake 10-15 seconds.	4. Filter into colorimeter cuvet and read % Protein directly.


All Commodities Protein Measurement, 4 Easy Steps


1. Weigh out specified amount of finely ground sample.	2. Dispense Reagent Dye into React-R-Tube. Add sample.	3. Shake for specified time using React-R-Mill.	4. Filter directly from React-R-Tube and read % Protein.