Lesson 5.2.c. Sources of Volatile Oils -- ALDEHYDES

geranial, neral, citronellal

ALDEHYDES

• linears

cinnamaldehyde, vanillin

ALDEHYDES

• cyclics

Cinnamomum zeylanicum

ALDEHYDES

Cinnamon

Scientific Name:

a. Ceylon — ?

b. Cassia

c. Saigon

Family:

Constituent/s:

Cinnamomum cassia

ALDEHYDES

Cinnamon

Scientific Name:

a. Ceylon

b. Cassia — ?

c. Saigon

Family:

Constituent/s:

Cinnamomum laureirii

ALDEHYDES

Cinnamon

Scientific Name:

a. Ceylon

b. Cassia

c. Saigon — ?

Family:

Constituent/s:

Lauraceae

ALDEHYDES

Cinnamon

Scientific Name:

a. Ceylon

b. Cassia

c. Saigon

Family: ?

Constituent/s:

60-75% of trans-cinnamaldehyde, also 4-10% phenols

ALDEHYDES

Cinnamon

Scientific Name:

a. Ceylon

b. Cassia

c. Saigon

Family:

Constituent/s: ?

Flavorant, mild astringent, carminative and germicide

ALDEHYDES

Cinnamon

• uses

Oil of cinnamon

ALDEHYDES

Cinnamon

• 70-95% eugenol, clove like odor

Antiseptic and anesthetic

ALDEHYDES

Cinnamon

• oil of cinnamon use

Citrus limon

ALDEHYDES

Lemon

Scientific Name: ?

Family:

Rutaceae

ALDEHYDES

Lemon

Scientific Name:

Family: ?

Lemon oil

ALDEHYDES

Lemon

• 90% of terpenes chiefly limonene

Citral

ALDEHYDES

Lemon

• mixture of geranial and neral (3:1 ratio)

neral

ALDEHYDES

Lemon

• In Citral, the major contributor to the flavor is a.__________________

• upon H+, it forms b._______________

a = ?

p-cymene

ALDEHYDES

Lemon

• In Citral, the major contributor to the flavor is a.__________________

• upon H+, it forms b._______________

b = ?

terebinthinate

ALDEHYDES

Lemon

• Terpenes in lemon give a a._______________ (smoke-like) odor which is undesirable

• terpene-less ones are better and are more b._____________

a = ?

expensive

ALDEHYDES

Lemon

• Terpenes in lemon give a a._______________ (smoke-like) odor which is undesirable

• terpene-less ones are better and are more b._____________

b = ?

distillation

ALDEHYDES

Terpeneless Lemon Oil

• removed by a.________________

• citral conrtent of b.__________________

• not subject to c.______________

• more d.________________

a = ?

40-50%

ALDEHYDES

Terpeneless Lemon Oil

• removed by a.________________

• citral conrtent of b.__________________

• not subject to c.______________

• more d.________________

b = ?

deterioration

ALDEHYDES

Terpeneless Lemon Oil

• removed by a.________________

• citral conrtent of b.__________________

• not subject to c.______________

• more d.________________

c = ?

expensive

ALDEHYDES

Terpeneless Lemon Oil

• removed by a.________________

• citral conrtent of b.__________________

• not subject to c.______________

• more d.________________

d = ?

Flavorant, stimulant, carminative, stomachic, odor of many liquid cleansers

ALDEHYDE:

Lemon

• uses

Fruits

ALDEHYDE

Orange Oil

Source: ?

Scientific Name:

Family:

Constituents:

Citrus aurantium

ALDEHYDE

Orange Oil

Source:

Scientific Name: ?

Family:

Constituents:

Rutaceae

ALDEHYDE

Orange Oil

Source:

Scientific Name:

Family: ?

Constituents:

nlt 18% aldehyde (decanal) and limonene (majority)

ALDEHYDE

Orange Oil

Source:

Scientific Name:

Family:

Constituents: ?

vacuum distillation

ALDEHYDE

Orange Oil

• Terpeneless Oil is the removal of 95% terpenes by ___________________

absence of bergapten

ALDEHYDE

Orange Oil

• TLC test for ___________________________ due to adulteration with bitter peel

flavorant and fragrance

ALDEHYDE

Orange Oil

• uses

Cymbopogon nardus

ALDEHYDE

Orange Oil

Scientific Name:

Family:

Constituents:

Poaceae

ALDEHYDE

Orange Oil

Scientific Name:

Family: ?

Constituents:

Citronellal

ALDEHYDE

Orange Oil

Scientific Name:

Family:

Constituents: ?

insect repellant

ALDEHYDE

Orange Oil

• use

Tanglad

ALDEHYDE

Lemongrass

Synonym: ?

Scientific Name:

Family:

Constituents:

Andropogon citratus

ALDEHYDE

Lemongrass

Synonym:

Scientific Name: ?

Family:

Constituents:

Poaceae

ALDEHYDE

Lemongrass

Synonym:

Scientific Name:

Family: ?

Constituents:

Citronellal

ALDEHYDE

Lemongrass

Synonym:

Scientific Name:

Family:

Constituents: ?

Flavoring agent and Analgesic

ALDEHYDE

Lemongrass

• use