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Made from
Properties
Reconstituted Milk
of
Physicochemical
Freeze-dried Milk Powder
Spray-dried Milk Powder
or
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Introduction
Materials and Methods
results and discussion part2
results and discussion part1
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Introduction
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Introduction
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Ca
Ca
Ca
Ca
Introduction
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Introduction
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Introduction
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Introduction
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Introduction
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Introduction
How
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Reconstituted Milk
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Reconstituted Milk
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Reconstituted Milk
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Reconstituted Milk
Flavor
Nutrient
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Spray - drying
Freezed - drying
Type of milk powder production method
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S…(생략)
①Freeze concentration process
②Freezing and freeze-drying process
① Form of ice crystal
② Remove the ice crystal
③ Recrystallization of ice crystal
④ Concentration of milk
⑤ Filtration of milk and ice mixture
⑥ Freeze of concentrated milk sample
⑦ Freeze-drying of frozen milk under vacuum stage
① milk sample(10 ㎖) + 2-propanol(15 ㎖)
② let the mixture stand at the room temp. for 20 min
③ centrifuge at 275 g for 10 min
④ filter the supernatant
⑤ perform lactose analysis by refractive index detector & HPLC
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, protein, fat, ash, calcium and phophorus content in milk samples are determined
(AOAC : Association of Official Analytical Chemists)
Kwak and Jeon Method
lactose content in milk samples is measured
Analysis of chemical composition
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① milk sample(10 ㎖) + 2-propanol(15 ㎖)
② let the mixture stand at the room temp. for 20 min
③ centrifuge at 275 g for 10 min
( g : acceleration of gravity)
④ filter the supernatant
⑤ perform lactose analysis by refractive index detector & HPLC
Kwak and Jeon Method
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They are investigated using the IDF Method
(IDF : International Dairy Ferderation)
Bulk density, dispersibility and wetting time
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Reconstituted milk : MC 87% (wet basis)
AOAC Method
Kwak and Jeon Method
Prepartion of reconstituted milk
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Investigation color value of milk samples using
a colormeter
L : lightness
a : redness
b : yellowness
Co