Phenolic ether, Phenolic, Oxide and Ester Volatile Oils
Session 33: Phenolic ether, Phenolic, Oxide and Ester Volatile Oils
Total Session Time: 120 minutes
Prerequisites
Learning Tasks
By the end of this session students are expected to be able to:
Resources Needed
SESSION OVERVIEW
|Step |Time |Activity/ |Content |
| | |Method | |
|1 |05 minutes |Presentation |Introduction, Learning Task |
|2 |15 minutes |Presentation |Fennel Oil |
|3 |15 minutes |Presentation |Anise Oil |
|4 |15 minutes |Presentation |Clove Oil |
| | |Buzzing | |
|5 |15 minutes |Presentation |Eucalyptus Oil |
|6 |15 minutes |Presentation |Lavender Oil |
|7 |15 minutes |Presentation |Rosemary Oil |
|8 |15 minutes |Presentation |Dill Oil |
| | |Brainstorming | |
|9 |05 minutes |Presentation |Key Points |
|10 |05 minutes |Presentation |Evaluation |
SESSION CONTENTS
STEP 1: Presentation of Session Title and Learning Tasks (5 minutes)
READ or ASK students to read the learning tasks and clarify
ASK students if they have any questions before continuing.
STEP 2: Fennel Oil (15 minutes)
o Fennel oil is an oil obtained from dried ripened seeds of Foeniculum
vulgare family Umbelliferae
o Anethole
o Fenchone
o Carminative
o Stimulant
o Flavouring agent
STEP 3: Anise Oil (15 minutes)
o Anise oil is an oil distilled from dried ripened fruit of Pimpenella
anisum, family Umbelliferae
o Anethole
o Safrole
o Fixed oils
o Carminative
o Stimulant
o Flavouring agent
STEP 4: Clove Oil (15 minutes)
o Clove oil is a colourless or pale yellow oil obtained by distillation
from dried flower buds of Eugenia caryophyllus (or Syzygium
aromaticum), family Myrtaceae
o The oil is sensitive to air
o Eugenol
o Acetyleugenol
o Gallotamic acid
o Carvacrol
|Activity: Brainstorming (5 minutes) |
| |
|Ask students to brainstorm on the following question: |
| |
|What are uses of clove oil? |
| |
|ALLOW few students to respond? |
| |
|WRITE their responses on the flip chart/ board |
| |
|CLARIFY and SUMMARIZE by using the content below |
o Stimulant
o Carminative
o Irritant
o Condiment
o Local anaesthetic
o Analgesic
o Antiseptic
o Flavouring agent
STEP 4: Eucalyptus Oil (15 minutes)
o Eucalyptus oil is an oil obtained by distilled from the fresh leaves of
Eucalyptus globlus, family Myrtaceae
o The oil is colourless or pale yellow with aromatic (camphoraceous)
odour
o Eucalyptol
o Cineol
o Resins
o Tannins
o Eucalyptic acid
o As an expectorant agent
o Rubefacient
o Antiseptic
o Decongestant
o Diaphoretic
STEP 5: Lavender Oil (15 minutes)
o Lavender oil is an oil obtained by steam distillation from flowering
tops of Lavandulla officinalis (Family Lamiaceae)
o The oil is colourless or pale yellow in colour with light fresh aroma
o α-pinene
o Limonene
o Linalyl acetate
o As an antiseptic agent
o Used to relieve tension, depression, panic hysteria and nervous
exhaustion
o Used for headache, migraines and insomnia
o Relives pain associated with rheumatism, arthritis, lumbago and muscles
o It is employed pharmaceutically in the anti-arthropod preparation of
Gamma Benzene Hexachloride
o Relives problems associated with gastrointestinal tract including
nausea, vomiting, colics and flatulence
STEP 6: Rosemary Oil (15 minutes)
o Rosemary oil is an oil obtained from flowering tops of Rosmarinus
officinalis (family Lamiaceae)
o Rosmarinic acid
o Camphor
o Caffeic acid
o Betulinic acid
o Rosmaridiphenol
o As an antioxidant
o Relief of gastrointestinal problems including heartburn, flatulence and
loss of appetite
o Used for gout, cough, headache, toothache, high blood pressure, and
reducing age-related memory loss (It is a memory enhancer)
o It is also used topically for preventing and treating baldness, eczema
and promotion of wound healing
o It is also used as an insect repellent
STEP 6: Dill Oil (15 minutes)
o Dill oil is an essential oil obtained by distillation from dried leaves
and seeds of Anethum graveolens, family Apiaceae
o The oil has a grass smell
o Carvone
o Limonene
o Carminative
o Flavouring agent
o Used with water to create dill water
STEP 7: Key Points (5 minutes)
of Lavandulla officinalis (Family Lamiaceae)
vulgare
officinalis
and seeds of Anethum graveolens
STEP 8: Evaluation (5 minutes)
← What is the chief constituent of clove oil?
← What are the constituents of dill oil?
← What is dill water?
References
Ryman, Daniele (1984). The Aromatherapy Handbook: The Secret Healing Power
of Essential Oils. Century Publishing CO. Ltd. pp. Chapter 3
Soares, I., Loreto, É, Rossato, L., Mario, D., Venturini, T., Baldissera,
F., Alves, S. (2015). In vitro activity of essential oils extracted
from condiments against fluconazole-resistant and -sensitive Candida
glabrata. Journal De Mycologie Médicale,25(3), 213-217.
doi:10.1016/j.mycmed.2015.06.003
Trease, G. E., Evans, W. C., & Evans, D. (2009). Trease and Evans
pharmacognosy. London: Saunders.
Joanne Barnes et al (2002), Herbal medicines 3rd Edition: Pharmaceutical
Press
Wallis, T. E. (2005). Textbook of pharmacognosy. New Delhi: CBS.
Robbers, J. E., Speedie, M. K., Tyler, V. E., & Tyler, V. E. (1996).
Pharmacognosy and pharmacobiotechnology. Baltimore: Williams &
Wilkins.
Heinrich, M., Kinghorn, A. D., Maizels, D., Gibbons, S., & Phillipson, J.
Churchill Livingstone/Elsevier.
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