Food Color Measurement_MK

Views:
 
Category: Education
     
 

Presentation Description

Konica Minolta Food Color Measurement - from Manish Kapadia, Jay Instruments & Systems P Ltd., JISL, India

Comments

By: vezlay (8 month(s) ago)

This blog is truly amazing https://weighbridgemanufacturers.in/intelligent-terminal/

Presentation Transcript

PowerPoint Presentation:

Food Color Measurement in Practice Manish Kapadia Chief Manager - CTP Jay Instruments & Systems Pvt. Ltd. India

PowerPoint Presentation:

   "All animals eat, but humans feed," says Fergus M. Clydesdale, Ph.D., professor and department head, Department of Food Science, University of Massachusetts, Amherst. "Eating is a festive occasion, and color adds to the enjoyment of food." Food Color Measurement in Practice

PowerPoint Presentation:

  Why Measure Color? Color as an indirect measure of product quality or processing performance (eg. freshness, over-ripeness or under-ripeness, purity, refining, mailard etc) Uniformity of Color in Production : as Quality Color can dramatically influence the flavor perception of food . Everyone says NO to Blue food; blue steak, red peas and green french fries are difficult to eat … ! Food Color Measurement in Practice

PowerPoint Presentation:

Food industry examples

PowerPoint Presentation:

Bread Cookies Fish Eggs Vege-tables Fish paste Bean paste Soy sauce Fruits Rice Tea Juice Meat Flour Coffee beans Soba flour Jelly Milk Japanese sweets Chocolate Ice cream Natto Fried foods Bean jam buns Shiso Soy-beans Side dishes Wine Cheese Jam Flavor-ings Pasta Mayon-naise Sauces Snacks Soup Sea-weed Health foods Bonito flakes BBQ sauce Mochi Rice crackers Alcohol Bean sprouts Kiwi fruit Spices Shellfish Gum Candy Sprinkles Sesame seeds Azuki beans Butter Ice-cream cones Noodles Wheat germ

PowerPoint Presentation:

Bread Cookies Fish Eggs Vege-tables Fish paste Bean paste Soy sauce Fruits Rice Tea Juice Meat Flour Coffee beans Soba flour Jelly Milk Japanese sweets Chocolate Ice cream Natto Fried foods Bean jam buns Shiso Soy-beans Side dishes Wine Cheese Jam Flavor-ings Pasta Mayon-naise Sauces Snacks Soup Sea-weed Health foods Bonito flakes BBQ sauce Mochi Rice crackers Alcohol Bean sprouts Kiwi fruit Spices Shellfish Gum Candy Sprinkles Sesame seeds Azuki beans Butter Ice-cream cones Noodles Wheat germ Powder Paste Liquid Tablets Rods Granules Solid Wide variety of consistencies and shapes Soft Opaque Translucent Uneven/curved surface Uneven color Wet Granule size

PowerPoint Presentation:

Color measurement of processed foods Variations in quality of raw materials Variations in processing conditions Variations in storage conditions Production location Harvest period Processing temperature Dissolution Powdering Filling/ Packing Cooling Shipment Processing time Mixing Oxidation Temperature Expiry date Receiving Shipment Management of whether the color of a processed food is within a specified range or not

PowerPoint Presentation:

Color measurement for agricultural, animal, and fisheries products Harvest time Humidity Period of exposure to sunlight Fertilizer Soil moisture Feed Production location Climate conditions Storage conditions Relationship between culturing conditions and color For determining freshness, grade, etc.

PowerPoint Presentation:

Various measurement methods Reflectance Transmittance Transmission reflectance Translucent samples such as seaweed, jellies, meat, soup, etc. Transparent samples such as drinks, tea, soy sauce, honey, juice, oils, etc. Opaque samples such as miso, bread, snacks, flavorings, beans, noodles, etc.

PowerPoint Presentation:

Color measurement of solid (dry) samples Portable instruments Desktop instruments Directly Directly Bread, vegetables, fruit

PowerPoint Presentation:

Amul Yellowness Index L a b The Taste of India YI (ASTM E313)       Butter 38 85 2.5 24.5 White Butter Presalted 19 88 0 12 Veg. FAT 37 84 5 24 Amulite Spread 28 88 4 18 Yellow Wrapper 79 Cotton Sample in Lab 8 Color measurement of solid (wet) samples BUTTER

PowerPoint Presentation:

Wrapped   Wrap sample in colorless transparent plastic or use a glass-tipped light projection tube or glass cover for measurements.   Wrap sample in colorless transparent plastic or place sample on top of a non-reflective glass plate for measurements. Glass cover Wrapped Glass Light-Projection Tube Meat, fish, cheese Color measurement of solid (wet) samples Portable instruments Desktop instruments

PowerPoint Presentation:

Measurement example: Farmed fish To ensure uniform quality for shipped sea bream with the aim of establishing a brand image. Color control of farmed sea bream CR-400 Reflectance

PowerPoint Presentation:

Natural sea bream Farmed sea bream Sunlight Sunlight doesn't reach deep in the ocean. Since they are in shallow water, sunlight reaches them. Colorant (Astaxanthin) Feed Shrimp; Crabs Semi-dried/ dried feed + Colorant

PowerPoint Presentation:

At first, a net is stretched around the fish pen and the fish are left white. The coloration of farmed fish can be adjusted by adjusting the feed and the sunlight conditions.

PowerPoint Presentation:

Feed Reddens The color of the sea bream is adjusted to a uniform level at the proper timing for shipment. Feed containing red colorant is given to the sea bream.

PowerPoint Presentation:

The above values are used as the standard color for determining whether or not fish can be shipped. Head a* = 7 Dorsal area a* = 12 Abdomen L* = 70 Measurement example 30 to 50 sea bream are taken as samples from the large quantity of fish in the fish pen, and the coloring is inspected.

PowerPoint Presentation:

Reflectance Measurement example: Eggs CR-400

PowerPoint Presentation:

Example of measuring egg yolks The color of the yolks can be adjusted by changing the feed fed to the hens.

PowerPoint Presentation:

Visual evaluation using an egg yolk color chart (15 cards) Egg yolk color evaluation methods Evaluation using CR-400 Yolk is placed in a container and measured Search for the color card with color closest to that of the egg yolk.

PowerPoint Presentation:

Color measurement of powders/granules Flour, Flavorings, Beans Directly with Glass Light Projection Tube Granular-Materials Attachment Jig for measuring powders Petri Dish Portable instruments Desktop instruments

Application example:

Application example Measuring a grain sample Greener means fresher. Hulled 50mm 8mm measuring area From Hokkaido From Canada From China

Application example:

Application example Measuring a grain sample Grains From Hokkaido From Canada From China CR-410 CM-5 CR-400  8mm Measuring area  30mm Measuring area  50mm Measuring area Larger measuring areas are better.

10 consecutive measurements of same position (DE*ab from first measurement) :

10 consecutive measurements of same position ( D E*ab from first measurement) Measurement area Ø 8mm Ø 30mm Ø 50mm Petri dish diameter: Ø 50mm Measurement

Application example: Measuring a grain sample:

Application example: Measuring a grain sample 10 measurements; sample poured out of and back into container between measurements (Color difference D E*ab from first measurement) Repeatability for hulled grains at various measuring areas Color difference D E*ab CR-400 ( 8mm) CM-5 (  30mm) CR-410 (  50mm) From Hokkaido 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 From China From Canada Grain type Grain type Grain type

Portable Chroma Meter CR-410 is ideal for measuring the color of roasted coffee:

Portable Chroma Meter CR-410 is ideal for measuring the color of roasted coffee Aroma, taste, and color are recognized as important factors in judging the roasting status of coffee beans. Simple Quick Stable values Using only the measuring head is also possible

Measuring coffee powder with portable Chroma Meter CR-410:

Measuring coffee powder with portable Chroma Meter CR-410 2) Put cell in stand. 1) Pour powder into cell. 3) Measure from on top of stand. No need to wash cell Heap coffee in cell. Stand flattens top. Measuring button

Problems with desktop instruments:

Problems with desktop instruments Differences due to variations in filling because of coarseness of ground coffee powder Differences due to staining of cell by oil from ground coffee powder Washing and drying cells takes time. Wash

Differences due to variations in filling because of coarseness of ground coffee powder:

Differences due to variations in filling because of coarseness of ground coffee powder Although portable, the CR-410 has a large 50mm measuring area to average out variations in filling and greatly reduce measurement differences. In addition, the xenon lamp provides high illumination to enable accurate measurements even of dark colors. CR-410 Recommended For Top view measurements

Differences due to staining of cell by oil from ground coffee powder:

Differences due to staining of cell by oil from ground coffee powder Measure Measure Comparison of measurement repeatability using glass cell and coffee measurement jig without washing between measurements Measurement repeatability using desktop instrument and glass cell L* variation Measurement repetitions Measurement repeatability using CR-410 and coffee jig with glass cell Measurement repetitions L* variation

Washing and drying cells takes time.:

Wash Washing and drying cells takes time. Measure Measure Measure from below Measure from above Necessary Bottom of cell is difficult to wash and stains are difficult to remove. Wash Unnecessary CR-410 Recommended For Top view measurements

Another advantage of CR-410 vs. desktop instruments On-site measurements :

Another advantage of CR-410 vs. desktop instruments On-site measurements Instrument Lab Lab Measurements can be taken easily on site! Take sample to lab...... ■With desktop instruments ■With portable CR-410 CR-410

Loose tea measurement example:

Loose tea measurement example CR-410

PowerPoint Presentation:

Black Tea normally what we drink, it has been oxidized longer, tends to have more caffeine and a stronger flavor Green Tea least amount of oxidation, can be found in the local grocery store Oolong Tea the in-between tea, it is brewed strong and bitter but leaves a sweet aftertaste Different Types of Tea

Loose tea measurement method:

Loose tea measurement method CR-410 Attach Glass Light-Projection Tube to the instrument and place directly on sample in container to take measurements. Evaluation is performed using L*a*b* and h (hue) from L*C*h. Measuring area: Ø 50mm

PowerPoint Presentation:

Toward flour whiteness like that of Canadian and Australian products Measurement diameter: Ø 30mm Measurement example: Wheat flour Reflectance The problem was natural: semolina wheat grains vary in color. The manufacturer combines both grain and flour lots to average the color mixtures, but numerical standards and tolerances are needed to assist operations in averaging the ingredients. The solution was first standardizing an ideal semolina flour using a Konica Minolta Colorimeter System, and then measuring individual flour lots for their color characteristics. By sample averaging, color variability within each lot was reduced, and then computer color matching of lots for successful color mixture potential in a final flour blend became possible.

PowerPoint Presentation:

Wheat flour Wheat flour is measured in paste form, not in powdered form. × ○ Wheat flour (6g) + Water (8g) This is the method for color measurement specified by the wheat flour industry.

PowerPoint Presentation:

In powdered form In paste form Diffuse reflectance varies according to particle arrangement or distribution, causing measurement values to vary. When particles are dissolved in water, measurement values are stable. This is because measurements in paste form are more stable than measurements in powder form

PowerPoint Presentation:

Color measurement of tablets Medicines, Foods Ø 3mm Target Mask Ø 2.8-3mm Target Mask Portable instruments Desktop instruments

PowerPoint Presentation:

Color measurements of rod samples Pasta, Noodles Directly Rod sample jig Portable instruments Desktop instruments

PowerPoint Presentation:

Reflectance color measurement of liquids Ketchup, Juice Liquid reflectance measuring jig Petri Dish Glass cup Directly with Glass Light-Projection Tube attached Portable instruments Desktop instruments

PowerPoint Presentation:

Cell for transmittance measurements Transmittance color measurement of liquids Desktop instruments Tea, drinks , wine , Gardner, Iodine, Hazen (APHA), European Pharmacopoeia, and USPharmacopeia next to all classic colorimetric evaluation systems. The new Konica Minolta CM-5 is a highly versatile and extremely easy to use Bench-Top Spectrophotometer with top-port alignment for easy measurement of powders, granules as well as pasty materials in Reflection and transparent or semi transparent liquids and solids in Transmission. Such samples are typically to be found in foods, ingredients, drinks, pharmaceutical, cosmetics as well as many Chemical base products. The CM-5 can be used in “stand alone” mode thanks to the multi language firmware, large colour screen and control key panel, or connected to the optional PC software SpectraMagic NX.

PowerPoint Presentation:

Color-measuring instruments: Rarely seen but widely used Color-measuring instruments are used for color control of a surprising variety of items. Think about all the colored things in your neighborhood stores. Probably a color-measuring instrument was used for them too! From ice cream, yogurt and cheeses in the dairy section, to lunch meats, sausages and sauces, we are working with food technologists to help test and assure that their final product color has the "eye-appeal“ needed for retail success.

PowerPoint Presentation:

Conclusion Color-measuring instruments are used for measuring the color of an amazing range of objects, from cars to foods, paints, plastics, textiles, appliances, building materials, cosmetics, paper, etc., even people's skin! Let us help you with the latest in color knowledge including color-measuring instruments, color-difference control, etc., so that you can make full use of color-measuring instruments in your day-to-day work. Konica Minolta Sensing Manish Kapadia Jay Instruments & Systems Pvt. Ltd. India

authorStream Live Help