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30 Cards in this Set

  • Front
  • Back

Nature’s perfect food intended for the nourishment of young mammals

Milk

Milk consists of

Water - 87 % Fats/Lipids - 3.9 % Lactose - 4.6 % Protein - 3.2 % Ash - 0.7 %

Factors to consider in milk quality

Milk composition, bacterial content of milk, chemicals

Fat is easily influenced by...

feeding system and milking techniques

Color of milk

Yellowish tinge (cow), creamy white (buffalo/goat)

Appearance of milk

Homogeneous liquid

Taste of milk

Subtle taste (quite bland)

Removes extraneous materials and body cells from milk

Clarification and filtration

Clarification and filtration can be done by

Mechanical centrifuge, passing milk through a clean cheese cloth

Clarifies milk by removing dirt and somatic cells; separates fat

Mechanical centrifuge

Serves as a filter

Passing milk through a clean cheese cloth

Storing at 2 to 4 degree celsius right after milking to delay enzymatic and microbiological changes in the milk

Cooling

Milk freshly drawn from the cow's udder is warm, about___ degree celsius

37

Separation of fat rich from non-fat portion

Separation

Fat-rich portion

Cream

Non-fat portion

Skim milk

Methods of separation

Gravity, mechanical (centrifugation)

Milk processing operations

Clarification and filtration, cooling, separation, standardization, pasteurization, vacuumization, homogenization

Provide milk products of uniform fat content

Standardization

Process of heating milk at definite temperature time thereafter cooling it immediately

Pasteurization

Methods of pasteurization

Holding process (batch method), flash process, ultra high temperature

Pasteurization: 62.8°C for 30 mins

Holding process (batch method)

Pasteurization: 73.9- 82.2°C for 15 secs

Flash process (HTST)

Pasteurization: 140 degree celsius for 1 second

Ultra high temperature

Use of equipment that removes volatile substances such as odor

Vacuumization

breaking down of fat particles into finer and smaller fat globules (___ µm)

Homogenization, 2

Prevents clustering to form cream layer so that the fat globules will be uniformly suspended in the solution

Homogenization

Involves coagulating (using acid/rennet) the casein protein in milk then separating the milk into solid curds and liquid whey.

Cheesemaking

Most type of cheeses use ____________ to determine the flavor and texture of the final cheese.

microorganisms/ starter cultures

High moisture, creamy, mild texture and not aged

Fresh cheese