Chapter 33
AAFCO 2024 Chapter 6 Ingredient Definitions - Chapter 33
Total ingredients in this chapter: 21
Chapter Overview
AAFCO Official Publication Chapter 6 contains ingredient definitions for animal feed and pet food. Chapter 33 covers 21 specific ingredients.
Ingredient List
33.1 Animal Fat
is obtained from the tissues of mammals and/or poultry in commercial processes of rendering or extracting. It consists predominately of glyceride esters of fatty acids and contains no additions of free fatty acids or other materials obtained from fats. It must contain, and be guaranteed for, not less than 90% total fatty acids, not more than 2.5% unsaponifiable matter, and not more than 1% insoluble impurities. Maximum free fatty acids and moisture must also be guaranteed. If the product bears
33.2 Vegetable Fat, or Oil
is the product of vegetable origin obtained by extracting the oil from seeds or fruits which are commonly processed for edible purposes. It consists predominantly of glyceride esters of fatty acids and contains no additions of free fatty acids or other materials obtained from fats. It must contain, and be guaranteed for, not less than 90% total fatty acids, not more than 2% unsaponifiable matter and not more than 1% insoluble impurities. Maximum free fatty acids and moisture must also be guaran
33.3 Hydrolyzed ____________ Fat, or Oil, Feed Grade
is obtained in the fat processing procedures commonly used in edible fat processing or soap making. It consists predominately of fatty acids and must contain, and be guaranteed for, not less than 85% total fatty acids, not more than 6% unsaponifiable matter, and not more than 1% insoluble impurities. Maximum moisture must also be guaranteed. Its source must be stated in the product name; e.g., “hydrolyzed animal fat,” “hydrolyzed vegetable fat,” or “hydrolyzed animal and vegetable fat.” If an a
33.4 ____________ Ester ____________, Feed Grade
is the product consisting of methyl, ethyl, or other non-glyceride ester of fatty acids derived from animal and/or vegetable fats. It consists predominantly of the ester and must contain not less than 85% total fatty acids, not more than 10% free fatty acids, not more than 6% unsaponifiable matter (2% for methyl esters) and not more than 1% insoluble matter. Its source must be stated in the product name; e.g., “methyl ester of animal fatty acids,” “ethyl ester of vegetable oil fatty acids.” Met
33.7 Vegetable Oil Refinery Lipid, Feed Grade
is obtained in the alkaline refining of a vegetable oil for edible use. It consists predominantly of the salts of fatty acids, glycerides, and phosphates. It may contain water and not more than 22% ash on a water-free basis. It may or may not be acidulated before using in commercial feeds, but if acidulated, it should be neutralized. (Proposed 1964, Published 1968, Amended 1980, 1996, 1999)
33.8 Corn Syrup Refinery Insolubles, Feed Grade
is obtained in the refining of a corn syrup. It consists predominantly of the fatty fraction of corn starch together with protein and residual carbohydrate. It may contain water and not more than 7% ash nor less than 50% fat on a water-free basis. (Proposed 1964, Published 1968)
33.10 _____ Distillers Oil, Feed Grade
is obtained after the removal of ethyl alcohol by distillation from the yeast fermentation of a grain or a grain mixture and mechanical or solvent extraction of oil by methods employed in the ethanol prod