REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
Available online : www.ijipsr.com July Issue 871
OCIMUM SANCTUM (TULSI) “QUEEN OF ALL MEDICINAL
HERBS”: A REVIEW
Sumit Summy*, Priya Patyal
M. Pharmacy Scholar, School of Pharmaceutical Sciences, Bahra University, Shimla, INDIA
Corresponding Author:
Sumit Summy
M.Pharmacy Scholar
School of Pharmaceutical Sciences
Bahra University,
Shimla, INDIA
E-mail: [email protected]
Phone: +91-8988058414
International Journal of Innovative
Pharmaceutical Sciences and Research www.ijipsr.com
Abstract
Ocimum sanctum is the sacred and traditionally medicinal plant worshipped in Hindu religion. It is also known as tulsi or holy basil belonging to family Lamiaceae. Major portion of total population of developing countries still uses traditional system of medicines. 80% of rural population of whole world is dependent on herbal medicines according to WHO. Due to this, the scientists do more research work on properties and uses of natural herbs. Each part of the plant i.e. stem, leaves, seeds, root, flower or whole plant is known for its medicinal properties, therefore Ocimum sanctum is regarded as “Queen of Herbs”. It has easy availability in India, so practitioners are widely recommending this herb. The plant is recommended for the treatment of various diseases like cough, sore throat, kidney stone, eye disorder, respiratory disorders, and stress and so on. It is also known for its analgesic, anti-cancer, anti- asthmatic, anti-emetic, anti-diabetic, anti- fertility, anti-lipidemic, hypotensive properties etc. Eugenol is the chief chemical constituent of the plant. Alkaloids, glycosides, saponins and triterpenoids are some biologically active compounds obtained from seed, stem and leaves. Eugenol is used in perfumeries, flavourings, essential oil and in medicine as local anaesthetic and antiseptic. This review will throw some more light on the pharmacological and medicinal properties of this holy herb.
Keywords: Ocimum sanctum, tulsi, Ayurvedic Properties, Alkaloids, Eugenol.
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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INTRODUCTION
Tulsi is a sacred plant of Hindu religion worshipped all over India. Tulsi means „incomparable
one‟ or „matchless one‟ and is derived from „sanskrit‟ [1]. The plant is known as holy basil in
english [2]. Tulsi has a mythological background [10]. Vishnupriya is the other name of tulsi
which means the one that pleases Lord Vishnu [2]. Tulsi is among the eight indispensible items of
vedic worship rituals which ensures tulsi plant in every house and temple. In India, tulsi is the
most respectful and honoured herb due to its sacredness in religion and spirituality. Due to this, in
the western region it is known as Sulabh „the easy obtainable on‟ [10]. Botanical name of tulsi is
„Ocimum Sanctum‟ belonging to family Lamiaceae. This plant is traditionally known for its
medicinal properties [2]. Tulsi has two varieties – Black (Krishna Tulsi) and Green (Rama Tulsi).
They have similar chemical and medicinal properties [1]. Genus Ocimum has various species like
Ocimum sanctum L (Tulsi), O. gratissimum (Ram Tulsi), O. canum (DulalTulsi), O. bascilicum
(Ban Tulsi), O. kilimandschricum, O. americanum, O. camphora and O. Micranthum. They are
cultivated in different parts of the world and are widely known for their medicinal properties [3].
Tulsi is also described as: Vanya (wild) and Gramya (Grown in homes) [5]. Plant is useful in the
treatment of cold, cough, malaria, dengue, bronchitis, asthma, sore throat, influenza, heart
disorders, eye diseases, mouth infections, insect bite, stress, kidney stone etc.[4].
Fig 1: Leaves of tulsi [61]
Cultivation
Tulsi grows in tropical and warm regions. Plant is originated in India and is distributed and
cultivated throughout the country. It is cultivated upto 1800m above the sea level [5]. In India
plant is grown from Himalayas to Andaman and Nicobar islands. It is widely grown in some areas
of Asia and Africa [1]. It grows naturally in moist soil. Size form and medicinal properties of the
plant depend upon the type of soil and variations in the rainfall. There are almost 150 species of
Ocimum genus in the tropical regions of Asia [6].
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
Available online : www.ijipsr.com July Issue 873
Morphology
It is erect, branched fragmented shrub with the height of about 30-60cm when mature. Its leaves
are simple, aromatic, branched, opposite, obtuse, ablong, elliptical and have dentate margins.
They are upto 5cm long [4]. Flowers are elongate racemes in close whorls and purple in colour.
Seeds are radish yellow and fruits are small [5]. It is planted after rainy season and harvested after
few months [4].
Taxonomy: [4]
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Lamiales
Family: Lamiaceae
Genus: Ocimum
Species: sanctum
Binomial name: Ocimum sanctum L.
Table 1: Name of Tulsi in Local/International Languages [30]
Sr. No. Name Language State/country
1. Tulasii Assamese Assam, India
2. Tulsi,Kural,Kalotulsi Bengali West Bengal, India
3. Tulasi, Sabji Gujarati Gujarat, India
4. Tulsi, Niyan Posh Dogri Himachal Pradesh, India
5. Pachcha, Kunnakum Malayalam Kerala, India
6. Sabja, Tulasa Marathi Maharashtra, India
7. Bajiru, Kami-meboki Japanese Japan
8. Basilie, Sweet Basil English England
9. Loh lahk, Yu heung choi Chinese China
10. Naruk-pul, Yanggajuk Korean Korea
11. Tulsi patta, Bavariphul Nepali Nepal
12. Alfabega, Albacar Spanish Spain
13. Horapa, Kaphrau Thai Thailand
Table 2: Extract and the part of tulsi plant used for pharmacological activities
Sr.
No. Therapeutic Activity Extract used Part used Reference
1. Anti stress Ethanolic Whole plant (dried) [19]
2. Anti inflammatory Methanolic/aqueous Leaves [22,2]
3. Anti-fungal Methanolic/aqueous Leaves [23]
4. Anti-fertility Benzene Leaves [31,30] 5. Hepatoprotective Ethanolic/ aqueous Whole plant (aerial) [24,19]
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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6. Anti-diabetic Ethanolic / aqueous Leaves [25,26]
7. Anti-ulcer Ethanolic / aqueous Leaves [28,29]
8. Anti-microbial Ethanolic Leaves [32,33]
9. Anti-psychotic Methanolic / leaves
paste Leaves [34,35]
10. Anti-cancer Ethanolic Root [36]
Chemical constituents
Ocimum sanctum L. has a very complex chemical composition. It contains many nutrients and
pharmacologically active compounds which vary in different varieties of the plant [13]. Essential
oils and tannins are the main components of O.sanctum. The amount of basic components present
depends upon the geographical distribution and the variety of the plant used. The primary
constituents of tulsi are: eugenol (7%), methyl eugenol, a-caryophyllene and b-caryophyllene,
carvacrol (3%) and ursolic acid [12]. Leaves contain upto 0.9% of the volatile oil. It is bright and
yellow in colour. Seeds are the source of fixed oil. Alkaloids, glycosides, saponins are also
present, citric acid, tartric acid and maleic acid are present in very less amount [11]. Some
amounts of sugars are present in seed mucilage and 1anthocynes in leaves. Stem and leaves of the
plant contains biologically active compounds like flavonoids, saponins and triterpenoids [13].
Fig 2 : Eugenol Fig 3: Ursolic acid
Fig 4 : caryophyllene Fig 5 : Carvacrol
Fig 6: Linalool Fig 7: Cineole
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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Chemical structures of eugenol [37], ursolic acid [38], caryophyllene [39], carvacrol [40], linalool [41], cineole [42].
Table 3: Phytoconstituents of Ocimum sanctum Linn. [19, 20, 30, 31]
Part Of The Plant Extracts Chemical Constituents Leaves Essential
oils Camphor, Caryophyllene oxide, 1,8,-cineole, cis-_-
Terpineol,Cubenol, Allo-oc-imene Cardinene, D-Limonene, Eicosane,Eucalyptol, Eugenol, Farnesene, Farnesol,
Furaldehyde, Germacrene, Heptanol, Humulene, Limonene, n-butylbenzoate, Ocimene, Oleic acid, Elemol, 1 4 - h y d r o x y
-α-humulene, Nerolidol, α- Selinene, β-selinene, Dimethyl benzene, Myrtenylformat, α-murolene, cadinene, δ - Cuparene,
Calamene, Geraneol, Phytol, Veridifloro, -Camphene, -Myrcene, -Pinene, -Pinene, -Thujene, -Guaiene, Gurjunene,
methyl chavicol and linalool.
Seeds Fixed oils Stearic acid, linoleic acid, oleic acid, sitosterol, hexourinic acid, Dilinoleno-linolins, hexourinic acid, palmitic acid.
Leaves (aerial parts)
Alcoholic extract
Aesculectin, Aesculin, Apgenin, Caffiec acid, Chlorgenic Acid, Circineol, Gallic Acid, Luteolin-7-O-glucuronide,
Isorientin, Orientin, Molludistin, Stigmasterol, Triacontanol ferulate, Vicenin-2, 4-hydroxybenzoic acid.
Whole plant Mineral content
Vit. C (83μg), Carotene (2.5μg), Calcium (3.15%), Phosphorus (0.34%), Cromium (2.9μg), Copper (0.4μg), Zinc (0.15μg), V (0.54μg), iron (2.32μg), Nickel (0.73μg), insoluble oxalates.
Table no 4: List of some marketed formulations of tulsi available in market:
Sr. No. Company Name of the
product Ingredient Formulation
Ref.
No.
1. Hamdard Joshina
Ocimum sanctum, Linium usitatissimum, Cassia fistula, Adhatoda vasika, Onosma
bracteatum, Ephedra vulgaris, Mentha arvensis, Althoea
officinalis, Glycyrrhiza glabra, Malva rotundifolia, Cordia iatifolia, Zizyphus vulgaris Saccharum officinarum.
Syrup [43]
2. Hamdard Safi
Ocimum sanctum, Cassia angustifolia
Opercullna turpethum,Rosa damascene, Tinospora
cordifolia, Burada sheesham, Termenalia chebula, Zingiber
zerumbet, Swertia chirata, Cassia ocidentalis, Sphaeranthus
indicus, Chrozaphora apicata, Fumaria perviflora, Bauhinia
Syrup [44]
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
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racemosa, Azadirachta indica, Curcuma zedoria, Berberis
aristata, Smilax china, Acacia Arabica, Convolvulus
pluricaulis, Tephrosia purpurea, Smilax aristochaefolia, Centalla
asiatica, Cassia absus.
3. Dabur Honitus
Ocimum sanctum, Glycyrrhiza glabra,
Solanum xanthocarpum, Viola odorata,
Taxus wallichiana, Zingiber officinale, Piper longum,
Adhadota vasica, Hedychium spicatum, Mentha species,
Madhu.
Syrup [45]
4. Multani Kuka
Ocimum sanctum, Adhatoda vasika, Alpinia galangal, Glycyrrhiza glabra, Piper longum, Mentha arvensis.
Syrup [46]
5. Patanjali Divya Swasari
Pravah
Solanum indicum, Justicia gendarussa, Adhatoda vasica,
Viola odorata, Ocimum sanctum, Piper longum,
Cinnamomum zeylanicum.
Syrup [47]
6. Jolly Tulsi 51
Ocimum sanctum, Ocimum gratissimum, Ocimum canum, Ocimum bascilicum, Ocimum
citiodorum.
Drops [48]
7. Unati Panch tulsi
drops
Occimum basilicum , Occimum sanctum, Occimum
canumOccimum citridorumOccimum
gratissimum
Drops
[49]
8. Himalaya Bresol Tulsi, Haridra, Vasaka. Tablet [50]
9. Satyam
health care Vasatus syrup
Ocimum sanctum, Adhatoda vasica, Glycyrrhiza glabra,
curcuma longa, mentha pipreta, Solanum xanthocarpum, zingiber officinalis, piper
nigram, piper longum, turminalia chebula.
Syrup [51]
10. Trio health
care Tulcof plus
Ocimum sanctum, Adhatoda vasica, Glycyrrhiza glabra, curcuma longa, Solanum
xanthocarpum, piper nigram, piper longum, zingiber
officinale, viola odorata, caryophyllus aromaticus, cinnamomum zeylanicum,
myristica fragrans.
Syrup [52]
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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11. Trio health
care Respirid
Honey , Mentha piperita, Adhatoda vasica, Tylophora asthamatica, Celerodendrum serratum, Ocimum sanctum, Curcuma longa, , Solanum
xanthocarpum, piper nigram, piper longum, zingiber
officinale
Syrup [52]
12. Dr
Alexander pvt ltd.
Touch skin face wash
Ocimum sanctum, Aloe barbadensis, Azadirachta indica.
Face wash [53]
13. Vedic
nature care pvt ltd.
Aaranya face wash
Ocimum sanctum, Azadirachta indica, Phyllanthus emblica,
Solanum lycopersicum, Mangifera lycopersicum,
Tamarindus indica.
Face wash [54]
14 Vedic
nature care pvt ltd.
Aaraya face and body
scrub
Ocimum sanctum, Azadirachta indica, Phyllanthus emblica,
Solanum lycopersicum, Mangifera lycopersicum,
Tamarindus indica,Glycyrrhiza glabra.
Scrub [54]
15. Planet
Ayurveda Tulsi capsule Ocimum sanctum Capsule [55]
16.
Vaibhavi aromatic
and handicraft
Vanish herbal cloth spray
Tulsi extract Spray [56]
17.
Vaibhavi aromatics
and handicraft
Tulsi mosquito coil
Ocimum sanctum, Azadirachta indica, Curcuma longa.
Mosquito repellent
[56]
18. Patanjali Tulsi
panchang juice
Ocimum sanctum Juice [57]
19. Divya
pharmacy Divya peya
Ocimum sanctum, Syzgium aromaticum, Myristica fragrans,
Rosa centifolia, Nelumbo mucifera, Foeniculum vulgare,
Boerhavia diffuse, Centella asiatica, Plumbago zeylanica, Ephedra gerardiana, Santalum
album, Convolvulus pluricavlis.
Tea [58]
20 Patanjali Ojas body
soap
Ocimum sanctum, Curcuma longa, Amahaldi, Aloe
barbadensis. Soap [59]
21. Mahagro Herbal tulsi
powder Ocimum sanctum Powder [60]
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
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Images of some marketed products
Fig. 8: Tulasi syrup [62] Fig. 9: Tulsi capsule [63] Fig.10: Tulsi drops [64]
Fig. 11: Face wash [65] Fig. 12: Anti-bacterial face pack [66] Fig 13: Tulsi green tea [67]
Traditional uses of tulsi
Tulsi is a home remedy in India [7]. Roots stems seeds, leaves, flowers etc. are the different parts
of the plant possessing different therapeutic potentials [10]. Traditionally juices of leaves and
fruits are commonly used to treat cough, upper respiratory tract infections, stress and superficial
fungal infections [7]. Preparations of Ocimum Sanctum advised to shorten the course of illness
and biochemical parameters occurring due to viral hepatitis. Leaf juice of O. Sanctum with
triphala is recommended in ophthalmic preparations for glaucoma, cataract, conjunctivitis and
other eye infections. Leaf juice is also given to treat dysentery, dyspepsia, chronic fever and
haemorrhage. Cold is curable using decoction of tulsi leaves [9]. Tulsi is also used as anti-dot for
snake bite and scorpion sting. Chewing tulsi leaves cures mouth ulcers and infections [5]. Herbal
tea, dried powder, fresh leaves are some of the forms in which O.sanctum is being taken. Tulsi is
being used as an insect repellent when mixed with grains [3]. Tulsi is planted in houses as a
mosquito repellent [1].
Pharmacological actions
Pharmacologically it is used as expectorants analgesic anti-cancer, anti-asthmatic, anti-emetic,
anti-diabetic, hypotensive, hepatoprotective, anti-fertility, anti-lipidemic etc.[1]. Tulsi is used to
treat fever, arthritis, convulsions and bronchitis [8].
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Medicinal uses of tulsi
Fever and Common Cold: Tulsi leaves are widely used against fever and cold. Leaves of tulsi
are boiled with cardamom in half a litre of water. Boiled decoction is mixed with sugar and milk
helps to bring down the body temperature [4,1]. Leaves boiled with tea act as a preventive agent
against dengue and malaria fever [5]. Roots of tulsi plant taken in the form of decoction act as a
diaphoretic agent in case of malarial fever [14].
Cough: Tulsi has the property to mobilize mucus. It has the ability to remove cough from lungs
and nasal passage. So, it is widely used as an expectorant in many herbal preparations [14,4,1].
Sore Throat: Tulsi leaves boiled in water can be taken to cure sore throat. This water can also be
beneficial if used as a gargle [4].
Respiratory Disorders: Tulsi is very much useful in treating the respiratory disorders. It acts as
broncho-dilators in asthma. Airway obstruction is reversed by the bronchodilators in case of
asthma [15]. Decoction of tulsi leaves taken with honey and ginger effectively cures asthma and
bronchitis. In case of influenza, clove and common salt is added to decoction to get immediate
relief. Chewing leaves of tulsi cures cold and flu [10].
Healing Power: Regular intake of herbs sharpens the memory. This herb is a nerve tonic which
improves the memory power [16,1].
Kidney Stone: Studies have reported that the leaves and seeds of this herb possess diuretic
properties. They were found to reduce the uric acid level in rats. Regular intake of juice of tulsi
leaves with honey expels kidney stones from the urinary tract within 6 months [17,14,10].
Eye Disorders: Juice of dark basil leaves is effective against eye disorder like night-blindness
and sore eyes. Deficiency of vitamin-A is the main cause behind it. Two drops of juice should be
inserted into the eyes daily before bed [4]. Whole plant of tulsi is effective against this painful
disorder [18]. In the animal study, it was found that aqueous extract of tulsi leaves delayed the
maturation of cataract [16]. Leaf juice along with triphala is prescribed for glaucoma and chronic
conjunctivitis [8,10,1].
Pharmacological Properties of Ocimum Sanctum
Anti-Stress: Stress leads to the production of more free radicals which produces an adverse effect
on vital organs and human tissues. The agents which increase the physical endurance and the state
of non-specific resistance are called adaptogens or anti-stress agents [19]. Recent studies have
shown that O.sanctum has a powerful adaptogenic property. Leaves of tulsi helps to prevent and
reduce physical and mental stress [20]. Tulsi plays a role of a rejuvenator, which reduces stress,
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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relaxes body and improves the memory [5]. In an animal study it is found that the oral
administration of ethanolic extract of tulsi (dose 20mg/kg) for 7 days has increased the level of
adrenaline, non-adrenaline and decreased dopamine and serotonin levels in mice. This has
resulted in overcoming the swimming and gravitational induced stresses [19]. In another animal
study, it is found that the ethanolic extract of O.sanctum helps in preventing the change in plasma
level of corticosterone which is induced due to the exposure to noise stress. This also indicates the
anti-stress activity of tulsi [21]. Adaptogenic activity of plant may be due to its immuno-stimulant
capacity [5, 2].
Anti-Inflammatory Activity: Ocimum sanctum‟s methanolic extract (500mg) proved the anti-
inflammatory activity in rats. Fixed oils and linolenic acid present in tulsi have the ability to block
cycloxygenase and lipoxygenase pathways of arachidonic acid metabolism. Therefore they show
anti- inflammatory activity against PGE2, leukotrines induced edema in rats [2]. O. Sanctum‟s
aqueous extract (200mg/kg or 400 mg/kg) showed significant anti-inflammatory activity (P<0.05)
in rats induced with carrageenan paw edema. This showed that effect of O.sanctum was better
than indomethacine(std. drug) [22].
Anti-Fungal Activity: Methanolic fraction and aqueous fraction of Ocimum sanctum showed
anti- fungal activity against dermatophytic fungus i.e. Trichophyton mantagrophytes, T.rubrum
etc. Aqueous fraction showed better anti-dermatophytic activity as compared to methanolic
fraction [23].
Anti-Fertility Activity: Albino rats treated with benzene extracts of Ocimum sanctum leaves
(250 mg/kg body weight) decreased the total sperm count and sperm motility. The effects were
the results of androgen deprivation due to the anti-androgenic property of O.sanctum leaves.
There was an increase in sperm testosterone level whereas the level of FSH and LH, sperm count
were reduced in rabbits [30]. In another study, male swiss albino mice were treated with
O.sanctum (25-30 body weight). Results revealed that there was reduction in spermatozoa
motility and sperm count [31].
Hepatoprotective Activity: Tulsi protects the liver from various damages induced
experimentally. Experimentally induced liver damage due to anti-tubercular drugs in rats can be
protected by ethanolic extract of Ocimum sanctum. It is also found that paracetamol induced liver
damage can be protected by ethanolic extract of O.sanctum [19]. In the animal study, lead induced
liver injury resulted in the rise of serum bilirubin content and serum marker enzyme level. Due to
this, lipid peroxides accumulated in hepatic tissue. On treating with aqueous extract of O.sanctum,
REVIEW ARTICLE Sumit Summy et.al / IJIPSR / 4 (7), 2016, 871-886
Department of Pharmacy ISSN (online) 2347-2154
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all the parameters came to the normal level. This shows the hepatoprotective nature of O.sanctum
[24].
Anti-Diabetic Activity: Aqueous extract of Ocimum sanctum has insulin sensitizing activity and
hyperglycaemic action which significantly proves its anti-diabetic activity. In the animal study, it
was that the aqueous extract of O.sanctum Linn. (300microgram/gram body weight) showed
significant reduction in blood glucose level (P<0.0001). [25] In the in-vitro study of O.sanctum
(ethanolic extract), it was found that stigmasterol and β-sitosterol isolated from the leaves, act as
an inhibitor of glucoamylase. So it can control the blood glucose level in case of
hyperglycaemia.[26] In another animal study, it was found that glibenclamide given with
O.sanctum decreased fasting mean blood glucose level more than glibenclamide when given
alone [27].
Anti-Ulcer Activity: In the animal study on albino rats, it was found that the ethanolic and
aqueous extract of Ocimum sanctum have the potential of anti-ulcer activity which may be due to
its cytoprotective action. Extract (200mg/kg) showed significant (P<0.05) reduction in volume of
acid. [28] Pre-treated rats with Ocimum sanctum (100-200mg/kg) showed a significant anti-ulcer
effect in comparison to the standard drug ranitidine [29].
Anti-Microbial Activity: Ethanolic extract of tulsi was tested against various gram +ve and gram
–ve bacterial strains i.e. Escherichia coli, Staphylococcus aureus , Bacillus subtilis, Salmonella
typhi, Acinetobacter bauminnii. MIC and MBC ranges of ethanolic extract were 0.702 – 90
mg/ml. Therefore, ethanol extract showed strong anti-microbial activity [32]. 6% concentration of
ethanolic extract showed anti-microbial activity against Actinobacillus actinomycetemcomitans
[33].
Anti-Psychotic Activity: Mice when treated with the methanolic extract of leaves of (50,100 and
200 mg/kg, p.o.) Ocimum sanctum showed a significant reduction in ketamine induced falling,
weaving, head bobbing and turning behaviour. It also reduced the latency time taken to climb the
pole. Dopamine level was also reduced in mice [34]. Paste of the Ocimum sanctum leaves (2%,
4%, 8% conc.) showed a significant potentiation in a dose dependent haloperidol induced
catalepsy in rats. It also decreased the locomotive activity [35].
Anti-Cancer Activity: NCIH-460 (non-small cell lung cancer cell line) in-vitro was treated with
the alcoholic root extract of Ocimum sanctum (10-50 µgm). It showed a significant decrease in
cell viability, colony forming capacity of NCI-H 460 cells due to the increased oxidative stress.
Study concluded that extract act by the increasing oxidative damage in cells [36].
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Department of Pharmacy ISSN (online) 2347-2154
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CONCLUSION
Plants have been known for their medicinal properties since the period of civilisation. Some of
them are sacred and worshipped all over India. Tulsi is one of them. Tulsi is known as Queen of
herbs due to its matchless properties. In Ayurveda, it is used as home remedy for treating various
diseases. It is investigated that various parts of this plant is used for its anti-inflammatory, anti-
fertility, anti-bacterial, hepatoprotective and other therapeutic properties. Large amount of herbal
formulations are available in the market some of them are given in this review. Further studies are
recommended to explore its therapeutic properties.
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