Food Chemistry Testing Liquids and Foods for Fats

Food Chemistry Testing Liquids and Foods for Fats

Testing Liquids and Foods for Fats ® FAT ® Insulates us from the cold (keeps us warm) ® Cushions us from bruises and injuries ® Gives us energy ® Per pound, fats give 2 x’s as much energy as carbohydrates (sugars & starches)

Testing Liquids and Foods for Fats ® Three kinds of fats: ® SATURATED - Not as good for you. Examples: Butter, Eggs, Ice Cream ® May raise the level of bad cholesterol in your blood. Could cause clogged arteries and heart disease (LDL).

Testing Liquids and Foods for Fats ® Three kinds of fats: ® UNSATURATED - Not as bad for you. Examples: Liquids like cooking oils Less harmful to your health. ® Considered “good fat”. ® May help lower your blood cholesterol (HDL). ®

Testing Liquids and Foods for Fats ® Three kinds of fats: ® TRANS FAT - Created by adding hydrogen bonds to unsaturated liquid fats. Allows them to last longer. Mostly man-made. ® Examples: Shortening, hard stick margarine, cookies, crackers, and snack foods made with partially hydrogenated oil. Harmful to your health. ® Raises your bad cholesterol levels (LDL) ®

Testing Liquids and Foods for Fats ® Brown Paper Bag Strips - The indicator used to show that fat is in a liquid or food. ® What do you look for?

Testing Liquids and Foods for Fats ® The brown paper bag strip shows a greasy stain = positive test. It does contain fat. ® The darker the stain, the greater the amount of fat. ® The brown paper bag strip doesn’t show greasy stain = negative test. It does not contain fat.