konica minolta food color measurement
DESCRIPTION
Konica Minolta Food Color Measurement - from Manish Kapadia, Jay Instruments & Systems P Ltd., JISL, IndiaTRANSCRIPT
Colour and Textile Products
Food Color Measurement in Practice
Manish KapadiaChief Manager - CTP
Jay Instruments & Systems Pvt. Ltd.India
Colour and Textile Products
• "All animals eat, but humans feed,""All animals eat, but humans feed,""All animals eat, but humans feed,""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
Colour and Textile Products
• 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 Color can dramatically influence the flavor Color can dramatically influence the flavor Color can dramatically influence the flavor perception of foodperception of foodperception of foodperception 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
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Food industry examplesFood industry examples
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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
sweetsChocolate
Ice cream Natto Fried
foodsBean jam
bunsShiso
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
Azukibeans
Butter
Ice-cream cones
Noodles
Wheat germ
Colour and Textile Products
Bread Cookies Fish EggsVege-tables
Fish paste
Bean paste
Soy sauce
Fruits Rice
Tea Juice Meat FlourCoffee beans
Soba f lour
Jelly Milk Japanese sw eets
Chocolate
Ice cream Natto
Fried foods
Bean jam buns Shiso
Soy-beans
Side dishes
Wine Cheese Jam
Flavor-ings Pasta
Mayon-naise Sauces Snacks
SoupSea-weed
Health foods
Bonito f lakes
BBQ sauce
Candy
Sprinkles
Sesame seeds
Azukibeans
Butter
Icecream cones
Noodles
Wheat germ
Powder
Paste
Liquid
Tablets
Rods
Granules
Solid
Wide variety of consistencies
and shapes
Soft
Opaque
Transluce
nt
Uneven/curve
d surface
Uneven color
Wet
Granule size
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Color measurement of processed foodsColor measurement of processed foods
Variations in quality of raw
materials
Variations in processing conditions
Variations in storage
conditions
Production location
Harvest period
Processing temperature
DissolutionPowdering Filling/ Packing Cooling
Shipment
Processing time
MixingOxidation
Temperature
Expiry date
Rec
eivin
g
Ship
men
t
Management of whether the color of a processed food is within a specif ied range or not
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Color measurement for agricultural, Color measurement for agricultural, animal, and fisheries productsanimal, and fisheries products
Harvest time
Humidity
Period of exposure
to sunlight
Fertilizer
Soil moisture
FeedProduction
location
Climate conditions
Storage conditions
Relationship betw een
culturing conditions and
color
For determining freshness,
grade, etc.
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Various measurement methodsVarious measurement methods
Reflectance TransmittanceTransmission reflectance
Translucentsamples such as seaweed, jellies, meat, soup, etc.
Transparentsamples such as drinks, tea, soy sauce, honey, juice, oils, etc.
Opaque samples such as miso, bread, snacks,
flavorings, beans, noodles, etc.
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Color measurement of solid (dry) samplesColor measurement of solid (dry) samples
Portable instruments
Desktop instruments
Directly Directly
Bread,vegetable
s, fruit
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8Cotton Sample in Lab
79Yellow Wrapper
1848828Amulite Spread
2458437Veg. FAT
1208819White Butter Presalted
24.52.58538Butter
YI (ASTM E313)The Taste of India
baLYellowness IndexAmul
Color measurement of solid (wet) samples Color measurement of solid (wet) samples BUTTERBUTTER
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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
WrappedWrappedWrappedWrapped
Glass Light-Projection Tube
Meat, Meat, Meat, Meat, fish, fish, fish, fish,
cheesecheesecheesecheese
Color measurement of solid (wet) samplesColor measurement of solid (wet) samples
Portable instruments Desktop instruments
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Measurement example: Farmed fishMeasurement example: Farmed fish
To ensure uniform quality for shipped sea bream with the aim of establishing a brand image.
Color control of farmed sea
breamCRCRCRCR----400400400400
ReflectanceReflectanceReflectanceReflectance
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Natural sea bream Farmed sea bream
SunlightSunlightSunlightSunlight
Sunlight doesn't reach deep in
the ocean.
Since they are in Since they are in Since they are in Since they are in shallow water, shallow water, shallow water, shallow water,
sunlight reaches them.sunlight reaches them.sunlight reaches them.sunlight reaches them.
Colorant (Astaxanthin)Colorant (Astaxanthin)Colorant (Astaxanthin)Colorant (Astaxanthin)
FeedFeedFeedFeed
Shrimp; Shrimp; Shrimp; Shrimp; CrabsCrabsCrabsCrabs
SemiSemiSemiSemi----dried/ dried dried/ dried dried/ dried dried/ dried feed + Colorantfeed + Colorantfeed + Colorantfeed + Colorant
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At first, a net is stretched At first, a net is stretched At first, a net is stretched At first, a net is stretched around the fish pen and around the fish pen and around the fish pen and around the fish pen and the fish are left white.the fish are left white.the fish are left white.the fish are left white.
The coloration of farmed fish can be adjusted by The coloration of farmed fish can be adjusted by The coloration of farmed fish can be adjusted by The coloration of farmed fish can be adjusted by adjusting the feed and the sunlight conditions.adjusting the feed and the sunlight conditions.adjusting the feed and the sunlight conditions.adjusting the feed and the sunlight conditions.
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FeedFeedFeedFeed
Reddens
The color of the sea bream is adjusted to a uniform level at theThe color of the sea bream is adjusted to a uniform level at theThe color of the sea bream is adjusted to a uniform level at theThe color of the sea bream is adjusted to a uniform level at the proper timing for shipment.proper timing for shipment.proper timing for shipment.proper timing for shipment.
Feed containing red colorant is given to the
sea bream.
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The above values are used as the standard color for determining whether or not fish can be shipped.
Heada* =7Dorsal area
a* =12
AbdomenL* =70
Measurement exampleMeasurement exampleMeasurement exampleMeasurement example
30 to 50 sea bream are taken as samples from the large quantity of fish in the f ish
pen, and the color ing is inspected.
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ReflectanceReflectanceReflectanceReflectance
Measurement example: Eggs
CRCRCRCR----400400400400
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Example of measuring egg yolksThe color of the yolks can be adjusted by The color of the yolks can be adjusted by The color of the yolks can be adjusted by The color of the yolks can be adjusted by changing the feed fed to the hens.changing the feed fed to the hens.changing the feed fed to the hens.changing the feed fed to the hens.
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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.
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Color measurement of powders/granulesColor measurement of powders/granulesFlour,
Flavorings,Beans
Directly with Glass Light Projection Tube
Granular-Materials Attachment
Jig for measuring powders
Petri Dish
Portable instruments
Desktop instruments
Colour and Textile Products
Application example• Measuring a grain sample
Greener means fresher.
Hulled
50mm
8mmmeasuring
area
From Hokkai
do
From Canada
From China
Colour and Textile Products
Application example
• Measuring a grain sample
Grains
From
Hokkaido
From
Canada
From
China
CR-410CM-5CR-400
∅∅∅∅8mmMeasuring area
∅∅∅∅30mmMeasuring area
∅∅∅∅50mmMeasuring area
Larger measuring Larger measuring Larger measuring Larger measuring areas are better.areas are better.areas are better.areas are better.
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10 consecutive measurements of same position(∆E*ab from first measurement)
Measurement areaMeasurement areaMeasurement areaMeasurement areaØ8mm8mm8mm8mm Ø30mm30mm30mm30mm Ø50mm50mm50mm50mm
Petri dish diameter: Petri dish diameter: Petri dish diameter: Petri dish diameter: Ø50mm50mm50mm50mm
MeasurementMeasurementMeasurementMeasurement
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Application example: Measuring a grain sample•10 measurements; sample poured out of and back into container
between measurements (Color difference ∆E*ab from first measurement)
Repeatability for hulled grains at various measuring areasRepeatability for hulled grains at various measuring areasRepeatability for hulled grains at various measuring areasRepeatability for hulled grains at various measuring areas
Col
or d
iffer
ence
Col
or d
iffer
ence
Col
or d
iffer
ence
Col
or d
iffer
ence
∆∆ ∆∆E*E* E*E*
abab abab
CRCRCRCR----400 (400 (400 (400 (∅∅∅∅8mm)8mm)8mm)8mm) CMCMCMCM----5 (5 (5 (5 (∅∅∅∅30mm)30mm)30mm)30mm) CRCRCRCR----410 (410 (410 (410 (∅∅∅∅50mm)50mm)50mm)50mm)
From Hokkaido
00.5
11.5
22.5
33.5
44.5
5
From China From CanadaGrain typeGrain typeGrain typeGrain type Grain typeGrain typeGrain typeGrain type Grain typeGrain typeGrain typeGrain type
Colour and Textile Products
Portable Chroma Meter CR-410 is ideal for measuring the color of roasted coffee
•Aroma, taste, and colorcolorcolorcolor are recognized as important factors in judging the roasting status of coffee beans.
Simple Quick
Stable
values
Using only the Using only the Using only the Using only the measuring measuring measuring measuring
head is also head is also head is also head is also possible possible possible possible
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Measuring coffee powder with portable Chroma Meter CR-410
2) Put cell in stand.2) Put cell in stand.2) Put cell in stand.2) Put cell in stand.1) Pour powder into 1) Pour powder into 1) Pour powder into 1) Pour powder into cell.cell.cell.cell.
3) Measure from on 3) Measure from on 3) Measure from on 3) Measure from on top of stand.top of stand.top of stand.top of stand.
No need to wash cell
Heapcoffee in cell.
Stand flattens top.
Measuring button
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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
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Differences due to variations in f illing because of coarseness of ground coffee powder
Although portable, the CRAlthough portable, the CRAlthough portable, the CRAlthough portable, the CR----410 has a large 410 has a large 410 has a large 410 has a large ∅∅∅∅50mm measuring area to average out 50mm measuring area to average out 50mm measuring area to average out 50mm measuring area to average out variations in filling and greatly reduce measurement differencesvariations in filling and greatly reduce measurement differencesvariations in filling and greatly reduce measurement differencesvariations in filling and greatly reduce measurement differences. In addition, the xenon . In addition, the xenon . In addition, the xenon . In addition, the xenon lamp provides high illumination to enable accurate measurements lamp provides high illumination to enable accurate measurements lamp provides high illumination to enable accurate measurements lamp provides high illumination to enable accurate measurements even of dark colors.even of dark colors.even of dark colors.even of dark colors.
CRCRCRCR----410 410 410 410
RecommendedRecommendedRecommendedRecommended
For Top view For Top view For Top view For Top view measurementsmeasurementsmeasurementsmeasurements
Colour and Textile Products
Differences due to staining of cell by oil from ground coffee powder
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
2.5
1 2 3 4 5 6 7 8 9 10-2.5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
2.5
1 2 3 4 5 6 7 8 9 10
Measure
MeasureComparison of measurement Comparison of measurement Comparison of measurement Comparison of measurement repeatability using glass cell and repeatability using glass cell and repeatability using glass cell and repeatability using glass cell and coffee measurement jig without coffee measurement jig without coffee measurement jig without coffee measurement jig without
washing between measurementswashing between measurementswashing between measurementswashing between measurements
Measurement repeatability using desktop Measurement repeatability using desktop Measurement repeatability using desktop Measurement repeatability using desktop instrument and glass cellinstrument and glass cellinstrument and glass cellinstrument and glass cell
L* v
ariat
ion
Measurement repetitions
Measurement repeatability using CRMeasurement repeatability using CRMeasurement repeatability using CRMeasurement repeatability using CR----410 and 410 and 410 and 410 and coffee jig with glass cellcoffee jig with glass cellcoffee jig with glass cellcoffee jig with glass cell
Measurement repetitions
L* v
ariat
ion
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Wash
Washing and drying cells takes time.
Measure
Measure
Measure from below
Measure from above
Necessary Bottom of Bottom of Bottom of Bottom of cell is cell is cell is cell is difficult to difficult to difficult to difficult to wash and wash and wash and wash and stains are stains are stains are stains are difficult to difficult to difficult to difficult to remove.remove.remove.remove.
Wash
Unnecessary
CRCRCRCR----410 410 410 410 RecommendedRecommendedRecommendedRecommendedFor Top view For Top view For Top view For Top view measurementsmeasurementsmeasurementsmeasurements
Colour and Textile Products
Another advantage of CRAnother advantage of CRAnother advantage of CRAnother advantage of CR----410 vs. desktop instruments On410 vs. desktop instruments On410 vs. desktop instruments On410 vs. desktop instruments On----site measurementssite measurementssite measurementssite measurements
Instrument
Lab
Lab
Measurements can be taken Measurements can be taken Measurements can be taken Measurements can be taken easily on site!easily on site!easily on site!easily on site!
Take sample to lab......Take sample to lab......Take sample to lab......Take sample to lab......■■■■With desktop instrumentsWith desktop instrumentsWith desktop instrumentsWith desktop instruments
■■■■With portable CRWith portable CRWith portable CRWith portable CR----410410410410
CR-410
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Loose tea measurement example
CR-410
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Black TeaBlack TeaBlack TeaBlack Tea
normally what we drink, it has been oxidized longer, tends to have more caffeine and a stronger flavor
Green TeaGreen TeaGreen TeaGreen Tea
least amount of oxidation, can be found in the local grocery store
Oolong TeaOolong TeaOolong TeaOolong Tea
the in-between tea, it is brewed strong and bitter but leaves a sweet aftertaste
Different Types of TeaDifferent Types of TeaDifferent Types of TeaDifferent Types of Tea
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Loose tea measurement method
CR-410Attach Glass LightAttach Glass LightAttach Glass LightAttach Glass Light---- Projection Projection Projection Projection Tube to the instrument and Tube to the instrument and Tube to the instrument and Tube to the instrument and place directly on sample in place directly on sample in place directly on sample in place directly on sample in
container to take container to take container to take container to take measurements. measurements. measurements. measurements.
Evaluation is performed using Evaluation is performed using Evaluation is performed using Evaluation is performed using L*a*b* and h (hue) from L*C*h.L*a*b* and h (hue) from L*C*h.L*a*b* and h (hue) from L*C*h.L*a*b* and h (hue) from L*C*h.
Measuring area:Ø50mm50mm50mm50mm
Colour and Textile Products
Toward flour Toward flour Toward flour Toward flour whiteness like whiteness like whiteness like whiteness like
that of that of that of that of Canadian and Canadian and Canadian and Canadian and
Australian Australian Australian Australian productsproductsproductsproducts
Measurement diameter: Ø30mm
Measurement example: Wheat flourMeasurement example: Wheat flourMeasurement example: Wheat flourMeasurement example: Wheat flour
ReflectanceReflectanceReflectanceReflectance
The problem w as natural:semolina w heat grains vary in color. The manufacturer
combines both grain and f lour lots to average the color mixtures, but numer ical standards and tolerances are needed to assist operations in averaging the ingredients.
The solution w as f irst standardizing an ideal semolina
f lour using a Konica Minolta Color imeter System, andthen measuring individual f lour lots for their color characteristics. By sample averaging, color variability w ithin each lot w as reduced, and then computer color matching of lots for successful color mixture potential in a
f inal f lour blend became possible.
Colour and Textile Products
Wheat flour
Wheat flour is measured in paste form, not in powdered form.
×××× ○○○○
Wheat flour (6g) + Water (8g)
This is the method This is the method This is the method This is the method for color for color for color for color
measurement measurement measurement measurement specified by the specified by the specified by the specified by the
wheat flour wheat flour wheat flour wheat flour industry.industry.industry.industry.
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In powdered form In paste form
Diffuse reflectance varies according Diffuse reflectance varies according Diffuse reflectance varies according Diffuse reflectance varies according to particle arrangement or to particle arrangement or to particle arrangement or to particle arrangement or
distribution, causing measurement distribution, causing measurement distribution, causing measurement distribution, causing measurement values to vary.values to vary.values to vary.values to vary.
When particles are dissolved in When particles are dissolved in When particles are dissolved in When particles are dissolved in water, measurement values are water, measurement values are water, measurement values are water, measurement values are
stable.stable.stable.stable.
This is because measurements in paste form are more stable than measurements in powder form
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Color measurement of tabletsColor measurement of tabletsMedicines,
Foods
Ø3mm Target MaskØ2.8-3mm Target Mask
Portable instruments
Desktop instruments
Colour and Textile Products
Color measurements of rod samplesColor measurements of rod samplesPasta,
Noodles
Directly
Rod sample jig
Portable instruments
Desktop instruments
Colour and Textile Products
Reflectance color measurement of liquidsReflectance color measurement of liquidsKetchup, Juice
Liquid reflectance measuring jig
Petri DishGlass cup
Directly with Glass
Light-Projection Tube attached
Portable instruments
Desktop instruments
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Cell for Cell for Cell for Cell for transmittance transmittance transmittance transmittance measurementmeasurementmeasurementmeasurement
ssss
Transmittance color measurement of liquidsTransmittance color measurement of liquids
Desktop instrumentsTea, drinksTea, drinksTea, drinksTea, drinks, wine, wine, wine, wine, , , , Gardner, Iodine, Hazen Gardner, Iodine, Hazen Gardner, Iodine, Hazen Gardner, Iodine, Hazen (APHA), European Pharmacopoeia, (APHA), European Pharmacopoeia, (APHA), European Pharmacopoeia, (APHA), European Pharmacopoeia, and and and and USPharmacopeiaUSPharmacopeiaUSPharmacopeiaUSPharmacopeia next to all next to all next to all next to all classic colorimetric evaluation systems.classic colorimetric evaluation systems.classic colorimetric evaluation systems.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 past y materials in Reflection and transparent or semi transparent liquids and solids in Transmission.
Such samples are t ypically 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.
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ColorColor--measuring instruments: Rarely seen but widely usedmeasuring instruments: Rarely seen but widely used
Color-measuring instruments are used for color control of a surpris ing 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.
Colour and Textile Products
ConclusionConclusionColor-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 KapadiaManish KapadiaManish KapadiaManish KapadiaJay Instruments & Systems Pvt. Ltd.
India