NUTR 1010 Lecture Notes - Lecture 5: Low-Density Lipoprotein, Trans Fat, Essential Fatty Acid
19 Jul 2017
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Document Summary
Most fatty acids have the cis configuration. Trans fatty acids are on nutrition labels: found naturally, produced via hydrogenation mixing of hydrogen gas with liquid oil, if they don"t naturally it undergoes hydrogenation creates solid form. Process of hydrogenation use liquid oil and make it into solid form. Transfats are naturally found in meats, cheese, milk. Mouth chewing and lingual lipase starts in the mouth: saliva releases lipase,s tating breakdown of fats. Stomach mechanical digestion: churning into small droplets, gastric lipase, fat into smaller driplets, some digestion of triglycerides in the stomach. Bile is surrounding fatty cell in small intestine called micelle. By surrounding the micelle, allows for aborptio nof fat diffusion into the cell membrane. In centre is fat soluable not able to transport int eh blood. Bile surround it makes it water solubale soit can enter the blood stream why bile is essential in fatty acid absorption.
