The document describes a lab experiment to extract essential oils from aniseed, ajwain, and cardamom seeds using steam distillation. Essential oils are volatile, aromatic compounds found in plants that are used for flavors, fragrances, and medicines. The experiment involves placing crushed seeds in a round-bottom flask, passing steam through the flask to carry the essential oils into a condenser and collection flask. The distillates are then extracted with petroleum ether. Key details provided include the botanical names of the plants, chemical composition and uses of the extracted oils.
Volatile oils are oils that are characterized by their volatility and failure to saponify. They evaporate when they are exposed to the air and thus are capable of distillation. They are derived from plant tissues. Thus, they may be produced naturally by extraction, particularly by distillation, often by using steam. They may also be made synthetically.
As medicines, volatile oils are used as stimulants, stomach aches, correctives, and carminatives. Other use of volatile oil is for purposes of flavoring (e.g., peppermint oil). But the most common use of volatile oil is for the production of perfumes, cosmetics, soaps, and the like.
Volatile oil is sometimes called an essential oil. An essential oil is known for being a concentrated hydrophobic liquid with plant-derived, volatile aroma compounds. It is referred to as essential since it contains what seems to be the essence of the plant’s fragrance
Volatile oil
Introduction:
Definition:
All volatile oils are obtained from plant source Except oil of musk, from male deer and amber, from whale.
The volatile oil is obtained by steam distillation of plants or by other method .
Volatile oils and related terpenoids-Methods of obtaining volatile oils,
chemistry, their medicinal and commercial uses, biosynthesis of some important
volatile oils used as drugs.
: In this video the viewers will come to know about Castor oil that is one of the Lipid containing crude drugs obtained from the plant sources Castor oil is the fixed oil obtained by cold expression of the seeds of Ricinus communis Linn., belonging to family Euphorbiaceae. This drug becomes important since it is obtained from seed source. Here the synonyms, biological sources (scientific names & Family), geographical sources (what are the countries where it can be collected), chemical constituents, identification tests and uses has been discussed in brief.
Portion explained:
1. Synonyms of Castor oil
2. Biological Sources of Castor oil
3. Geographical Sources of Castor oil
4. Preparation of Castor oil
5. Description of Castor oil
6. Chemical Constituents of Castor oil
7. Chemical Test of Castor oil
8. Uses of Castor oil
Volatile oils are oils that are characterized by their volatility and failure to saponify. They evaporate when they are exposed to the air and thus are capable of distillation. They are derived from plant tissues. Thus, they may be produced naturally by extraction, particularly by distillation, often by using steam. They may also be made synthetically.
As medicines, volatile oils are used as stimulants, stomach aches, correctives, and carminatives. Other use of volatile oil is for purposes of flavoring (e.g., peppermint oil). But the most common use of volatile oil is for the production of perfumes, cosmetics, soaps, and the like.
Volatile oil is sometimes called an essential oil. An essential oil is known for being a concentrated hydrophobic liquid with plant-derived, volatile aroma compounds. It is referred to as essential since it contains what seems to be the essence of the plant’s fragrance
Volatile oil
Introduction:
Definition:
All volatile oils are obtained from plant source Except oil of musk, from male deer and amber, from whale.
The volatile oil is obtained by steam distillation of plants or by other method .
Volatile oils and related terpenoids-Methods of obtaining volatile oils,
chemistry, their medicinal and commercial uses, biosynthesis of some important
volatile oils used as drugs.
: In this video the viewers will come to know about Castor oil that is one of the Lipid containing crude drugs obtained from the plant sources Castor oil is the fixed oil obtained by cold expression of the seeds of Ricinus communis Linn., belonging to family Euphorbiaceae. This drug becomes important since it is obtained from seed source. Here the synonyms, biological sources (scientific names & Family), geographical sources (what are the countries where it can be collected), chemical constituents, identification tests and uses has been discussed in brief.
Portion explained:
1. Synonyms of Castor oil
2. Biological Sources of Castor oil
3. Geographical Sources of Castor oil
4. Preparation of Castor oil
5. Description of Castor oil
6. Chemical Constituents of Castor oil
7. Chemical Test of Castor oil
8. Uses of Castor oil
Unit II Introduction to secondary metabolite
Volatile oils
Mentha, Clove, Cinnamon, Fennel, Coriander.
For video lecture suscribe yutube channel snehal chakorkar
This slide includes the plants containing Volatile oil, their chemical components, Structures and uses. As well as how the volatile oil is being obtained from different methods and techniques with the pictorial representation.
Laxatives are drugs that relieve constipation by losing stools or inducing a bowel movement.
Some laxatives are also used before bowel procedures or examination.
Laxatives come as pills, capsules, liquids, foods, gums, and suppositories.
Drugs are Aloe, Rhubarb, Castor oil, Isabgol, Senna.
Lemon is a popular citrus fruit with multiple health benefits making the oil extracted from it rich in natural ingredients including minerals and vitamins. This oil is manufactured in its 100% organic state by AG industries. This product is in high demand among some of the leading brands across different parts of the world.
Presented by: Chemist / Eid koranyOwner and technical managerof Taba company for Chemical
Industries and cleaning products
in workshop on Workshop on Oleochemicals at the SemiRamis Intercontinental Hotel.
Oleochemical Technology. Production of fatty acids & glycerine starting from vegetable & animal oil and fats Hydrolysis is the basic production step, the fats and oils are split into crude glycerine and a mixture of crude fatty acids, under the combined action of water, temperature and pressure. The temperature exceeds 200°C and the products are kept under pressure for more than 20 minutes.. Fats & oils crude glycerine + crude fatty acids + water
3. • A process for the esterification of a triglyceride. • The process comprises forming a single phase solution of said triglyceride in an alcohol selected from methanol and ethanol, the ratio of alcohol to triglyceride being 15:1 to 35:1. • The solution further comprises a co-solvent in an amount to effect formation the single phase and a base catalyst for the esterification reaction. • After a period of time, ester is recovered from the solution. • Esterification is rapid and proceeds essentially to completion. • The esters may be used as biofuel or biodiesel
4. Glycerine (also called glycerin or glycerol) is an alcohol which is used as a moisturizer in soaps and lotions. Glycerine has a sweet taste, and it can be used as a food preservative and a non-sugar sweetener.
5. Glycerine Lubricants (jet engine, refrigeration) Plasticizer for Polyvinyl Butyral (PVB) Explosives Polyurethane Foam
6. Examples of Derivative
7. Process involves 1. A fatty acid or fatty acid mixture is esterified in a column reactor. 4. As the liquid flows down the trays it encounters progressively drier lower alkanol. 5. The ester product recovered from the bottom of the reactor has an ester content of at least 99 mole % (calculated on a lower alkanol free basis). 2. Relatively dry lower alkanol vapour (water content not more than 5 mole %) is injected into the bottom of the column reactor. 3. Water of esterification is removed from the top of the column reactor in the vapour stream, whilst ester product is recovered from the sump of the reactor.
Unit II Introduction to secondary metabolite
Volatile oils
Mentha, Clove, Cinnamon, Fennel, Coriander.
For video lecture suscribe yutube channel snehal chakorkar
This slide includes the plants containing Volatile oil, their chemical components, Structures and uses. As well as how the volatile oil is being obtained from different methods and techniques with the pictorial representation.
Laxatives are drugs that relieve constipation by losing stools or inducing a bowel movement.
Some laxatives are also used before bowel procedures or examination.
Laxatives come as pills, capsules, liquids, foods, gums, and suppositories.
Drugs are Aloe, Rhubarb, Castor oil, Isabgol, Senna.
Lemon is a popular citrus fruit with multiple health benefits making the oil extracted from it rich in natural ingredients including minerals and vitamins. This oil is manufactured in its 100% organic state by AG industries. This product is in high demand among some of the leading brands across different parts of the world.
Presented by: Chemist / Eid koranyOwner and technical managerof Taba company for Chemical
Industries and cleaning products
in workshop on Workshop on Oleochemicals at the SemiRamis Intercontinental Hotel.
Oleochemical Technology. Production of fatty acids & glycerine starting from vegetable & animal oil and fats Hydrolysis is the basic production step, the fats and oils are split into crude glycerine and a mixture of crude fatty acids, under the combined action of water, temperature and pressure. The temperature exceeds 200°C and the products are kept under pressure for more than 20 minutes.. Fats & oils crude glycerine + crude fatty acids + water
3. • A process for the esterification of a triglyceride. • The process comprises forming a single phase solution of said triglyceride in an alcohol selected from methanol and ethanol, the ratio of alcohol to triglyceride being 15:1 to 35:1. • The solution further comprises a co-solvent in an amount to effect formation the single phase and a base catalyst for the esterification reaction. • After a period of time, ester is recovered from the solution. • Esterification is rapid and proceeds essentially to completion. • The esters may be used as biofuel or biodiesel
4. Glycerine (also called glycerin or glycerol) is an alcohol which is used as a moisturizer in soaps and lotions. Glycerine has a sweet taste, and it can be used as a food preservative and a non-sugar sweetener.
5. Glycerine Lubricants (jet engine, refrigeration) Plasticizer for Polyvinyl Butyral (PVB) Explosives Polyurethane Foam
6. Examples of Derivative
7. Process involves 1. A fatty acid or fatty acid mixture is esterified in a column reactor. 4. As the liquid flows down the trays it encounters progressively drier lower alkanol. 5. The ester product recovered from the bottom of the reactor has an ester content of at least 99 mole % (calculated on a lower alkanol free basis). 2. Relatively dry lower alkanol vapour (water content not more than 5 mole %) is injected into the bottom of the column reactor. 3. Water of esterification is removed from the top of the column reactor in the vapour stream, whilst ester product is recovered from the sump of the reactor.
Volatile Oils PPT Students of Dr Shahid Rasool.pptxshahidrasool65
Volatile oil are odorous principles found in various plant
parts because they evaporate when exposure to air at
ordinary temperature they are called volatile oils or etheral
oil.
complete chapter of volatile oils that comes under the pharmacognosy. the ppt gives details study of all volatile oils in a particular manners which help the students to learn more in a simple way of learning.
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Chemistry kv -2 indore investigatory project
1. AIM:-
To Extract Essential Oils Present In
Aniseed(Sauf), Carom oil(Ajwain), And
Cardamom(Elachi).
INTRODUCTION:-
We are all familiar with the pleasant odours coming out
from flowers, spices and many trees. The essence or
aromas of plants are due to volatile oils present in them.
These smelling volatile oils present in plants are called
essential oils.
Cinnamon, clove, cumin, eucalyptus, garlic, jasmine,
peppermint, rose, sandalwood, spearmint, thyme,
wintergreen are a few familiar examples of valuable
essential oils. The term “essential oils” literally means
“oils derived from the essence” of plants.
Essential oils are mainly used for their pleasant odours
and flavors in perfumes and as flavoring agents in foods.
Some are used in medicines (e.g., camphor, wintergreen,
eucalyptus) others as insect repellants (e.g., citronella).
Chemically essential oils are composed of complex
mixtures of ester, alcohols, phenols, aldehydes, ketones
and hydrocarbons.
They are essentially non-polar compounds and are thus
soluble in non-polar solvents such as petroleum ether,
benzene etc. Essential oils may occur in all parts of the
plant, but they are often concentrated in the seeds or
flowers. They are obtained from the plants by the
process of steam distillation and extraction. The
technique of steam distillation
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2. permits the separation of volatile components from non-
volatile materials without raising the temperature of the
distillation above 100° C. Thus steam distillation reduces
the risk of decomposition of essential oils.
ANISEE ESSENTIA OI
NISEED ESSENTIAL
OIL
T C
BOTANICA
L
NAME:-
E
METHO
D
O
F
EXTRACTION
:-
STEAM
DISTILLATION
M
AROMATI
C
DESCRIPTION
:- ,
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3. Aniseed, on steam distillation, yields an essential oil,
known as `Oil of Aniseed , which has now replaced
the fruits for medicinal and flavoring purposes.
Aniseed oil is a colorless or pale-yellow liquid
having the characteristic odor and taste of the fruit.
The yield of oil generally varies from 1.9 to 3.1 per
cent. Higher values up to 6 per cent have been
reported from Syrian aniseed. Crushing of fruits
prior to distillation gives better yields of oil. The
material should be distilled soon after the crushing
to prevent any loss of oil due to evaporation.
Aniseed oil is a highly refractive liquid, which
solidifies on cooling. The congealing point depends
much on the anethole content and is a valuable
criterion for evaluating the oil. Exposure of the oil to
air causes polymerization, and some oxidation also
takes place with the formation of anisaldehyde and
anisic acid.
DESCRIPTION
:-
The chief constituent of aniseed oil is anethole,
which
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COLOUR:
-
PALE GREENISH
(SEEDS)
4. is present to the extent of 80 to 90 per cent and is
mainly responsible for the characteristic flavor of
the oil. The oil also contains methyl chavicol, p-
methoxyphenyl acetone, and small amount of
terpenes and sulfur containing compounds of
disagreeable odour.
USES OF ANISEED
OIL:-
In aromatherapy, aniseed essential oil is used to
treat colds and flu.
Aniseed oil can be made into a liquid scent and
is used for both hunting and fishing. It is put on
fishing lures to attract fish.
Anethole, the principal component of anise oil, is
a precursor that can eventually produce 2,5-
dimethoxybenzaldehyde which is can be used in
the clandestine synthesis of psychedelic drugs
such as
2C-B, 2C-I and
DOB. 4 |
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Oil of aniseed is also reported to be used as an
aromatic carminative to relieve flatulence, and as
an ingredient of cough lozenges in combination
with liquorice.
Essential oil is also used externally as an
insecticide against small insects such as head
lice, mites and vermin. It also has fungicidal
properties.
CARO OI (AJWAIN
AROM OIL
(AJWAIN)
BOTANICAL NAME
:-
6. EXTRACTION:-
Ajwain oil is exctracted from the crushed
seeds of ajwain by the method of Steam
Distillation.
COMPOSITION:-
The main constituents of the ajwain oil are
thymol, gamma-terpinene , pcymene and beta-
pinene.
Alpha pinene, alpha-thujene,beta-myrcene ,
carvacol ,limonene ,and terpinene-4-ol. There
are variations in the composition of ajwain oils
METHOD OF
EXTRACTION :-
AROMA
:-
COLOUR
:-
, ,
,
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7. depending upon the region where it is
cultivated. For instance, ajwain oil collected
from southern India is rich in thymol.
USES:
-
SKIN AILMENTS :-Ajwain can help with
pimples .
DIGESTIVE AID :- One can treat
indigestion ulcers and various other
bacterial infections of the
gut with ajwain seeds and essential oils .
AROMATHERAPY :-Useful in
Aromatherapy, ajwain oils calming
sensations that relieves neuralgia and
migranes.
Carom seeds have been shown to have
anti- inflammation in your body.
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8. It shows anti-oxidant and anti-
antihypertensive nature.
CARDAMO OI (ELAICHAI
I :
:
ARDAMOM OIL (ELAICHA )
-
BOTANICAL
NAME:-
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9. METHOD OF EXTRACTION:-
AROMA:-
COLOUR:-
EXTRACTION:-
Cardamom oils extracted using steam
distillation method. For this, seeds of the fruits
are used just before they ripe. The yield
through the process is normally 1 to 5
percent.
USES:-
Cardamom oil has a vast range of usage
for treatment of sciatica, coughs,
abdominal pain spasm and nervous
disorders.
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10. Traditionally it is used for pulmonary
disease, fever, digestive and urinary
problems in India and china for over 300
years.
It is also used for flavor
pharmaceutical products.
Fragments in soaps perfumes and
cosmetic products.
REQUIREMENTS:-
Steam generator (copper
vessel)
Round bottom flask (500ml.)
Conical flask
Condenser
Glass tubes 10 |
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11. Iron stand
Sand bath
Separatory funnel
Tripod stands
Burner
Ajwain (carcum)
Petroleum ether (60-
80°C)
Saunf (Aniseed)
PROCEDUR
E:-
1) Set the apparatus as shown in the picture of
Experimental Setup. The apparatus consists of a
steam generator connected to the round bottom
flask through a glass inlet tube. The flask is
connected to a water condenser through a glass
outlet tube. Condenser is 11 |
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12. further attached to a receiver through an adaptor.
2)Take about 750 ml of water in the steam generator
and start heating to produce steam.
3)In the round bottom flask take about 75 gm of
crushed saunf.
4)A vigorous current of steam from steam
generator is passed through the round bottom
flask.
5)A part of the steam condenses in the round
bottom flask. As more and more steam is
passed, the steam volatile components of saunf
pass through the condenser along with steam.
These contents on condensation are collected in
the receiver.
6)The contents in the round bottom flask may be
heated by a bunsen burner to prevent excessive
condensation of steam.
7)The process of steam distillation is continued for
about half an hour.
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13. 8)Transfer the distillate to a separating funnel and
extract with 20 ml. portions of petroleum ether 3
times.
9)Combine the petroleum ether extracts in a 250
ml conical flask and dry it with the help of
anhydrous sodium sulphate.
10)Remove the solvent from the dried filtrate by
careful distillation in a water bath. The essential oil
is left behind in the distillation flask
11)Find the weight of the extracted essential oil. Note
the colour, odour and weight of the essential oil.
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14. OBSERVATION
:-
SAUF (ANISEED) :-
Weight of sauf taken
= Initial weight of
bottle =
Wight of bottle + essential oil =
Weight of essential oil extracted = (y-
x) Percentage of essential oil (y/100)
= Colour of oil =
Odour of oil =
AJWAIN (CARUM) :-
Weight of sauf taken
= Initial weight of
bottle =
Weight of bottle + essential oil =
Weight of essential oil extracted (y-x)
=
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15. Percentage of essential oil (y/75×100)
=
Colour of oil =
BIBLOGRAPHY :-
Following Books and websites were
source for My Project .
Comprehensive chemistry lab
manual –Dr. N.K. Verma.
www.goggle.com
www.wikipedia.com
www.cbse.nic.in
www.icbse.com
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