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Biochemistry > Reaction of Lipids > Flashcards

Reaction of Lipids Flashcards

1
Q

Hydrolysis usually took place to ____ because they have ester links.

A

triacylglycerol

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2
Q

Functional groups that are easily hydrolysable

A

ester and amide functional groups

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3
Q

Complete Hydrolysis

A

Triacylglycerol will be hydrolyzed to form a molecule of glycerol and three molecule of fatty acids.

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4
Q

Partial hydrolysis

A

When one or more fatty acid residue

remains (NOT 3)

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5
Q

Partial Hydrolysis follow a stepwise manner

A

IN GLYCEROL
The 1st fatty acid that is hydrolyzed is the Carbon link, followed by Carbon 2.

And end product will be monoacylglycerol - kasi if 3 matanggal maging complete hydrolysis

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6
Q

Hydrolysis

A

Carried out by enzymes produced by the pancreas in a stepwise manner

Breaking of outer fatty acids produces diacylglycerol and monoacylglycerol

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7
Q

Saponification is important in the production of ___

A

Soaps

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8
Q

Usual composition of Soaps

A

Fatty Acid Salts

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9
Q

soaps based on its composition

A

Sodium Hydroxide - Hard Soap

Potassium Hydroxide - soft or liquid soap

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10
Q

Saponification

A

Hydrolysis in basic solution

Products: Fatty acid and glycerol salts

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11
Q

Example of Saponification

A

Fat or Oil + 3 Water –> 3 Fatty acids + glycerol

3 Fatty Acids + 3 NaOH –> 3 Fatty acids + 3 Water

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12
Q

Hydrogenation usually took place when fatty acids of triacylglycerol are mainly composed of ____

A

unsaturated fatty acids

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13
Q

Process to make Margarine and Peanut Butter

A

Hydrogenation

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14
Q

Peanut Butter is produced from ____

A

Partial Hydrogenation of Peanut Oil

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15
Q

Margarine is produced from

A

Hydrogenation of liquid plant oil

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16
Q

Hydrogenation

A

Addition of hydrogen across C–C multiple bonds, which increases degree of saturation

17
Q

Reason for rancidification of oils because C=C is oxidatively cleaved which result to the production of aldehyde (more pronounced since it is more volatile) and carboxylic acid who has a foul odor.

A

Oxidation

18
Q

To avoid rancidification ___ is added as preservative, examples of this are Vitamin C and Vitamin E

A

Antioxidants

19
Q

Double bonds in triacylglycerols are subject to ____ with oxygen (an oxidizing agent)

A

Oxidation

Biochemistry (7 decks)

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