Chapter 17 NOR

Chapter 17 NOR - Chapter17: FattyAcidCatabolism Most trans...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17: Fatty Acid Catabolism
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Most trans fats consumed today are industrially created by partially hydrogenating plant oils — a process developed in the early 1900s and first commercialized as Crisco in 1911. These more saturated fats have a higher melting point , which makes them attractive for baking and extends their shelf-life . Unlike other dietary fats, trans fats are neither required nor beneficial for health and, in fact, the consumption of trans fats increases one's risk of coronary heart disease by raising levels of "bad" LDL cholesterol and lowering levels of "good" HDL cholesterol. Health authorities worldwide recommend that consumption of trans fat be reduced to trace amounts. Trans fats from partially hydrogenated oils are generally considered to be more of a health risk than naturally occurring oils. Knoop, β oxidation of FA, metabolism studies using labeled biomolecules ω phenyl labeled FA odd = benzoic acid = hippuric even = phenylacetic acid = phenylaceturic acid
Background image of page 2
Diet, cell storage, transported
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
VLDL VHDL Centrifugation Chylomicrons (lipoprotein aggregates)
Background image of page 4
Hydrolysis of Fats Yields Fatty Acids and Glycerol hydrolysis of triacylglycerols is catalyzed by lipases some lipases are regulated by hormones glucagon and epinephrine epinephrine means: we need energy now glucagon means: we are out of glucose
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Adipocytes Sterol esters Phospholipids Release under hormonal regulation Serum albumin FA carrier (60% of blood protein) Low glucose, glucagon, start cycle
Background image of page 6
Glycerol backbone of triacylglycerols 5% of available energy in triacylglycerides
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/25/2010 for the course CHEM 142b taught by Professor Perona,j during the Spring '08 term at UCSB.

Page1 / 48

Chapter 17 NOR - Chapter17: FattyAcidCatabolism Most trans...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online