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16 Cards in this Set

  • Front
  • Back

A lot of saturated short chain FA's have characteristics of

Medium Melting Point


- Is prone to FFA rancidity




Milkfat is an example

A type of palm oil

Palmitic (C16)

A type of Coconut Oil

Lauric (C12)

Relatively longer unsaturated FA's have characteristics of

Liquids are prone to oxidation




Examples are Soybean, corn, canola and peanut

A low unsaponifiable number indicates

Lots of other materials such as pigments, tocopherols, sterols, etc.



Ex that have low numbers are soybean, corn, canola and peanut

Hydrogenation

Reduction of double bonds

Full hydrogenation

TG's with saturated fatty acids

Partial Hydrogenation

Some cis- and trans- unsaturated fatty acids (Medium MP)

Winterization

-Make oils stable to refrigeration


- Hold at 5.6 Degrees C


+ Collect oil


- Salad oils/Mayo




NARROWS THE MP

Fractionation

-Desired solid/liquid behavior


-Hold at desired temperature


+ Collect oil or fat




NARROWS THE MP

Blending

-Change solid/liquid profile


- Mix different oils/fats



WIDEN THE MP

Interesterification

Interchange/randomization of fatty acis


- Output: Create intermediate-melting TG's



Strategy is to combine with fractionation/blending

Plasticization

"Plastic" shortening or margarine


+ AKA "Votation"




-Reduce oil temp: Create a crystal network


+ Liquid oil trapped within solid network




- Continuous stirring: Control network formation


+ Air/nitrogen added for sheen/foamy texture

Baking Shortening

- Impart richness/tenderness


- More air pockets


- Add flakiness to pastry dough


- Lubrication to retard staling


- Structure for cakes/icings/fillings

Frying Shortening

Heat transfer medium



Components


- Saturated/highly hydrogenated TG's


- Anti-foaming agent



Minimized unsaturated TG content


Very Clean oil (low FFA, low unsaponifiable matter_

Dairy Analog shortening

Used for


- Plasticity/lubrication


- Structure (Frozen desserts)


- Protein


- Stabilizers/emulsifiers



Ex.


Non-Dairy creamers


Whipped topping


Fluid milk analogs