Dairy Chemistry And Biochemistry

Appendix 3A. Principal fatty acids in milk fat

Abbreviated
designation Structure

Systematic Melting Odour threshold

name Common name point ("C) value (mg kg-')

Saturated
c4 0 CH,(CH,),COOH
C6 0 CH,(CH,),COOH
c, 0 CH,(CH,),COOH
CIO 0 CH,(CH,),COOH
C,, 0 CH,(CH,), ,COOH
'14 0 CH,(CH,),,COOH
CI, 0 CH,(CH,),,COOH
CI, 0 CH,(CH,), ,COOH

Unsaturated

18: 1 CH3(CH,),CH=CH-CH,-(CH,)6-COOH
18:2 CH3(CH,),-(CH%H-CH,)~~CH2)6-COOH
18:3 CH3(CH,),-(CH=CH-CHz)3~CH2)3<OOH
20:4 CH I(CH ,),-(CH%H--CH 2)4-(CH ,),-COOH
w3-Family
A9-Family

w9-Family

w6-Family

18:3 CH,CH,--(CH=CH<H,)j-(CHJ6<OOH

18: 1 CH,(CH,),--CH%H--CH ,<CH ,),--COOH
16: 1 CH,(CH,),--CH%H-CH,-(CH,)6--COOH

Butanoic acid

Hexanoic acid

Octanoic acid

Decanoic acid

Dodecanoic acid

Tetradecanoic acid

Hexadecanoic acid

Octadecanoic acid

A9-octadeconic acid

A9J2-0ctadecdienoic acid

A6,9,12-octadectrienoic acid

A5,8,11,14-ecosatetraenoic acid

A9,12,15-octadectrienoic acid

A9-octadeconoic acid

A9-hexadecenoic acid

Butyric acid

Caproic acid

Caprylic acid

Capric acid

Lauric acid

Myristic acid

Palmitic acid

Stearic acid

Oleic acid

Linoleic acid

y-Linolenic acid

Arachidonic acid

a-Linolenic acid

Oleic acid

Palmitoleic acid

• 7.9 0.5-10


• 3.9 3
  16.3 3
  31.3 10
  44.0 10
  54.0
  62.9
  69.6

13.4

• 5.0
  -49.5
  -11.0
  13.4
  0.5