ANSC 3700: Week 15 By-Products of the Meat Industry: Edible and Inedible

Edible organs and glans

What are variety meats?

Brain

What variety meat is NOT consumed from beef?

-Heart

-Liver

-Gizzard

What are examples of poultry variety meats?

Liver

What is the most widely served variety meat?

-Vitamin A

-Riboflavin

-Niacin

-Iron

What is liver high in?

Low

Consumption of variety meats in the US is ____.

Natural Casings

Chitterlings

What edible byproducts can be made from intestines?

Shortenings; Pork- Lard; Beef - Tallow

What edible byproducts can be made from adipose tissue?

-Bones

-Pork skins, calf skin trimmings

-Tendons, ligaments

What is gelatin made from?

Hides

What is the most valuable animal byproduct?

Pelt

What is the skin + wool from a sheep called?

Lanolin

What substance, commonly used in cosmetics, is a byproduct of sheep?

-Vegetable tanning

Tannin solutions

Woods or barks

-Chrome tanning

Basic chromium sulfate

What are two methods of tanning hides?

1.Curing with salt or brine

2.Stacking and storage

3.Removal of hair using lime

4.Tanning

5.Finishing - dying, lubricating, filling, impregnating, flexing, surface coating, embossing, polishing

What are the 5 steps of hide processing?

Rendering

What is the process of reducing, converting, or melting down animal tissues by heating called?

1.Cook with steam: 115-145°C (240-290°F)

2.Fat separation with screw press

3.Further process cracklings

4.Storage and transportation

What are the 4 steps of rendering?

Tallow- Solid at room temp

Grease- Liquid at room temp

What is the difference between tallow and grease?

-Fresh blood coagulated with steam and dried

Uses:

-Protein source

-Also used in fertilizers

What is blood meal and what is it used for?

-Cooked, dried, and ground feathers

Uses:

-High in protein, low in essential amino acids

-Can be used in poultry feed (limited), ruminant feed, fertilizer

What is feather meal and what is it used for?