Impotant Fatty Acids in Triglycerides Number of Common Name Melting Point Structure Carbons ** Saturated FA (°C) 12:0* CH,(CH2)COOH CH3(CH2)„COOH CH,(CH2,,COOH CH,(CH,COOH CH,(CH,COOH laurie acid myristic acid palmitic acid stearic acid arachidic acid 44 14:0 58 16:0 18:0 20:0 63 70 77 Unsaturated FA palmitoleic acid oleic acid 16:1 CH,(CH,),CH=CH(CH,),COOH CH3(CH2),CH=CH(CH2),COOH CH,(CH2)(CH=CHCH2)(CH2),COOH linoleic acid CH;CH (CH=CHCH ),(CH2),COOH 18:1 16 18:2 -5 -11 18:3 linolenic acid

Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter18: Lipids
Section: Chapter Questions
Problem 18.16E: The percentage of fatty acid composition of two triglycerides is reported below. Predict which...
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Consider the melting point trend for the unsaturated fatty acids (FA) calculated below and give an explanation for this trend
Impotant Fatty Acids in Triglycerides
Common
Name
Number of
Melting
Point
Structure
Carbons
Saturated FA
**
(°C)
12:0*
CH3(CH2)1,COOH
CH,(CHCOOH
CH3(CH2),,COOH
CH;(CH,)18COOH
CH,(CH,)1sCOOH
lauric acid
44
myristic acid
palmitic acid
stearic acid
14:0
58
16:0
63
18:0
70
20:0
arachidic acid
77
Unsaturated FA
CH3(CH2),CH=CH(CH2),COOH
CH;(CH2),CH=CH(CH2),COOH
CH3(CH2),(CH=CHCH2),(CH2),COOH linoleic acid
CH;CH,(CH=CHCH2),(CH,),COOH
palmitoleic acid
oleic acid
16:1
1
18:1
16
18:2
-5
-11
18:3
linolenic acid
Transcribed Image Text:Impotant Fatty Acids in Triglycerides Common Name Number of Melting Point Structure Carbons Saturated FA ** (°C) 12:0* CH3(CH2)1,COOH CH,(CHCOOH CH3(CH2),,COOH CH;(CH,)18COOH CH,(CH,)1sCOOH lauric acid 44 myristic acid palmitic acid stearic acid 14:0 58 16:0 63 18:0 70 20:0 arachidic acid 77 Unsaturated FA CH3(CH2),CH=CH(CH2),COOH CH;(CH2),CH=CH(CH2),COOH CH3(CH2),(CH=CHCH2),(CH2),COOH linoleic acid CH;CH,(CH=CHCH2),(CH,),COOH palmitoleic acid oleic acid 16:1 1 18:1 16 18:2 -5 -11 18:3 linolenic acid
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