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CONSERVATION & SUSTAINABLE
UTILITY OF MEDICINAL PLANTS
Dr.AkhilRaj.A.R
PG Scholar
Dept. of Dravya Guna Vijnana
Amrita School of Ayurveda
INTRODUCTION
 Use of medicinal plants is as old as civilization itself. They have been
used by mankind for centuries
 The World Health Organisation (WHO) estimated that 80% of the
population of developing countries rely on traditional medicines, mostly
plant drugs, for their primary health care need
 The demand for Medicinal plants is said to be increasing year after year.
This necessitate the conservation of Biodiversity
 India is one of the world’s top 12 mega diversity countries with 10 bio
geographic regions. India alone includes two among the world’s eight
biodiversity hotspots
In India, out of 17000 - 18000 species of flowering plants about 6000 -
7000 are medicinal plants having medicinal usage in folk and documented
systems of medicine, like Ayurveda, Siddha, Unani & Homoeopathy that
accounts to nearly 35 - 40 %
The growing demand for medicinal plants is putting a heavy strain on the
natural resources. This has resulted in depletion of a number of higher plant
species which are categorized as either threatened or endangered.
Hence conservation of biodiversity is essential not only to maintain
ecological process and life support system ,but also to ensure sustainable
utilization of species as well as eco system.
NEED FOR CONSERVATION
Over one and half million practitioners of the Indian systems of
medicine, use medicinal plants in preventive, promotive and
curative applications
Medicinal plants are potential renewable natural resources
Several medicinal plants have been assessed as endangered,
vulnerable and threatened due to over harvesting in the wild
While the demand for medicinal plants is increasing, their
survival in their natural habitats is under growing threat
MAJOR CAUSES OF MEDICINAL PLANTS DEPLETION
 Non - sustainable, destructive, high density harvesting by plant collectors
 Declination in traditional knowledge of local communities regarding use of medicinal
plants
 Over harvesting of the material due to low income of collectors & low prices paid to
them
 Increased international demand for medicinal plants
 Commercialization of medicinal plants & increased accessibility of traders to remote
forest areas
 Over deforestation
Natural phenomenon ( Land slides, Forest fire, Global warming, Drought)
SYSTEM - WISE USAGE OF MEDICINAL
PLANTS
System Approx. %
Percentage
Ayurveda 81.70 %
Folk 67.97 %
Homoeopathy 14.90 %
Modern 06.38 %
Siddha 56.72 %
Tibetan 23.77 %
Unani 52.29 %
Ayuveda
Folk
Siddha
Unani
Tibettan
Homoeopathy
Modern
81.70%
67.97%
56.72%
52.29%
23.77%
USAGE OF MEDICINAL PLANTS BY PARTS
0%
5%
10%
15%
20%
25%
30%
35%
ROOT WHOLE
PLANT
FRUIT &
SEED
BARK LEAVES STEM FLOWER GUM OTHERS
32%
19%
18%
10%
8%
5% 5%
2%
1%
Root Whole plant Fruit & Seed Bark Leaves Stem Flower Gum Others
Series1 32% 19% 18% 10% 8% 5% 5% 2% 1%
Series1
Source : FRLHT ,Trade data base , 2013
IUCN (INTERNATIONAL UNION FOR
CONERVATION OF NATURE SPECIES) has
classified plant species into nine categories.
Extinct
Extinct in the wild (EW)
Critically endangered(CR)
Endangered (EN)
Vulnerable(VU)
Near threatened(NT)
Least concern (LC)
Data deficient (DD)
Not evaluated (NE)
RARE SPECIES: Species with small
population restricted geographically
with localized habitats. They are not in
immediate danger of extinction
e.g. Saraca indica ( Asoka )
VULNERABLE: Species are under
threat of or actually declining in
number.
e.g. Aegle marmelos ( Vilwa )
Baliospermum montanum (Danti )
ENDANGERED: Species with low
population number that are in
considerable danger of becoming
extinct
e.g. Bacopa monnieri ( Brahmi )
CRITICALLY ENDANGERED:
when a species is facing an extremely
high risk of extinction in wild in the
immediate future
e.g. Inula racemosa ( Puskaramoolam )
EXTINCT: Species which cannot be found in areas where they recently been inhabited
e.g. Drosera indica, Aerva wightii, Asparagus rottleri, Madhuca insignis
Plant diversity in India
IUCN threat status of
Indian Medicinal plants
Important medicinal plants of India, their uses and conservation status
Species Common
Name
Medicinal
Uses
Habitat Cause of
extinction
Red List
Category
Conservation
strategies
Acorus calamus Vacha Root - Memory
loss,anxiety,Men
tal fatigue,
Sinusitis
Grows on the
margins of
standing or
slow-flowing
water
No information
is available on
threats to the
species or its
habitats
Least concern No conservation
measures have
been undertaken
specifically for
this species
Adhatoda
beddomei
Vasa Root, leaves and
flowers of vasa
is used in the
form of juice &
decoction to
treat
fever,cough,asth
ma,skin diseases
Travancore hills
of South western
ghats,Akkamalai
( Coimbatore
Dist),
Mahendragiri(K
anniyakumari
Dist)
No information
Available
Critically
endangered
Conservation
status unknown
Boerhaavia
diffusa
Punarnava Root -
Diuretic,laxative
,anemia,expecto
rant used in
asthma,bronchiti
s
Perennial
creeping herb
found
throughout the
waste land of
india
No information
Available
Not accessed Conserved at
several MPCAs
Picrorhiza
kurrooa
Katuki Roots are used
in stomach pain,
fever and
dyspepsia
Distributed in
Himalayas from
Kashmir to
Sikkim at an
elevation of
2,700-4,500m
No information
available
Endangered Conservation
status unknown
Piper longum Pippali Roots & Fruits
are used in
cough,fever,cold
carminative
Lowland
tropical
rainforest
Habitat loss Endangered Conservation
status unknown
Rouwolfia
serpentina
Sarpagandha Roots - reduce
high blood
pressure &
hyper tension
Growing in
abundance in
shade of dense
vegetation
Habitat
destruction
Extinct in wild* Conservation
status unknown
Withania
somnifera
Ashwagandha Roots - effective
in painful
swellings,feverT
he whole plant is
used in
leucorrhoea in
females &
impotence in
males
Alluvial soil rich
in humus and
nitrogen with
pH ranging
between 6 - 8
Over
exploitation for
preparation of
medicines on
large scale
Extinct in wild* Conservation
status unknown
In situ
conservation
Ex situ
conservation
Propagation,
Domestication
Crop variety
breeding
Reduction of
anthropogenic
pressure &
Rehabilitation
of endangered
species
Medicinal Plant Conservation Strategies
Conservation at the site of their occurrence
Achieved through establishment of a number of MPCAs in biogeographic
zones of India in co-operation with the State Forest Depts.
It includes - Biosphere reserves, national parks, sacred sites, Sacred grooves
etc
Most medicinal plants are endemic species, and their medicinal properties are
mainly because of the presence of secondary metabolites that respond to
stimuli in natural environments, and that may not be expressed under culture
conditions.
In-situ Conservation
Ex-situ Conservation
Conservation is done outside of the natural habitat
Achieved by ,
Raising nurseries
Seedling supply
Plantation material
By establishing Botanical garden, Medicinal plant garden
Seed banks
In-vitro methods like tissue culture
SUSTAINABLE USE
For Sustainable utilization of medicinal plants, the
Departments/Institutions/Agencies must be identified for preparation of
document on various aspects of cultivation & conservation covering
availability of planting material, agro-practices, protocol, status of
technology, ex-situ & in-situ conservation etc..
Various issues to be addressed for sustainable utilization of Medicinal
plants are,
 Identify the medicinally important species & study their biology
 Identify the therapeutically important ingredients and set up
pharmaceutical industry
 Develop scope for their commercial exploitation
 Set up artificial propagation methods to fulfill the demand
 Maintain the germplasm through conserving the species in-situ & ex-
situ
DISCUSSION
Harvesting of medicinal plants is less costly than artificial drug
synthesis. Reserpine is a good example of this. The synthesis of the drug
costs approximately $ 1.25/g ; whereas commercial extraction from the
plant cost $ 0.75/g
Heavy demand of some of the plants has threatened some species and
put them to the level of extinction.70 % of plant collections involve
destructive harvesting because of use of parts like roots, barks, stems &
whole plant
There are no regular developmental programmes in the forestry &
agriculture sector to promote regeneration and revival of endangered
species
WHAT CAN WE DO?
 Awareness of new species varieties
 Educate the drug collectors
 Substitution of plant or with other parts of plant
 Programmes to promote a herbal garden in & around public places like schools,
road side, worship places of all religions
 Facilitate link between farmers and manufacturers
 Conserve the existing forest
 Reduce dependence on wild for collection of drugs
 Biodiversity areas must be identified and conserved
CONCLUSION
A large number of Medicinal plant species in India are threatened
Over exploitation & habitat destruction are the most serious proximate threats
to Medicinal plants. Hence in-situ conservation alone can not be successful in
conservation, other ex-situ methods need to be employed
Traditional knowledge can also play important role in medicinal plant
conservation
Strategies need to be developed for conserving the available biodiversity, so
that the natural wealth is preserved and multiplied to be used for the benefit of
humankind and the future generations. It needs only a sincere effort and the
mother nature will reward us with abundance
“ Dasa Kupa samo Vapi - Dasa Vapi samo Hridah /
Dasa Hrida samo Putrah - Dasa Putra samo Drumah // ”
- Vriksha Ayurveda
10 Wells = 1 Tank
10 Tanks = 1 Lake
10 Lakes = 1 Child
10 Children = 1 Plant
 Vriksha Ayurveda ( A Component of
Agnipurana ) - One of the oldest epics of
India
 A dedicated text on Agricultural Science
signifies the Conservation of Plants &
utmost importance has been attributed to
Plantation - equating ten human lives with a
single plant
STEPPING STONE TO SUCCESS …
Amrita School of Ayurveda
THANK YOU..

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Conservation & Sustainable Utility of Medicinal Plants - Dr Akhilraj A R

  • 1. CONSERVATION & SUSTAINABLE UTILITY OF MEDICINAL PLANTS Dr.AkhilRaj.A.R PG Scholar Dept. of Dravya Guna Vijnana Amrita School of Ayurveda
  • 2. INTRODUCTION  Use of medicinal plants is as old as civilization itself. They have been used by mankind for centuries  The World Health Organisation (WHO) estimated that 80% of the population of developing countries rely on traditional medicines, mostly plant drugs, for their primary health care need  The demand for Medicinal plants is said to be increasing year after year. This necessitate the conservation of Biodiversity  India is one of the world’s top 12 mega diversity countries with 10 bio geographic regions. India alone includes two among the world’s eight biodiversity hotspots
  • 3. In India, out of 17000 - 18000 species of flowering plants about 6000 - 7000 are medicinal plants having medicinal usage in folk and documented systems of medicine, like Ayurveda, Siddha, Unani & Homoeopathy that accounts to nearly 35 - 40 % The growing demand for medicinal plants is putting a heavy strain on the natural resources. This has resulted in depletion of a number of higher plant species which are categorized as either threatened or endangered. Hence conservation of biodiversity is essential not only to maintain ecological process and life support system ,but also to ensure sustainable utilization of species as well as eco system.
  • 4. NEED FOR CONSERVATION Over one and half million practitioners of the Indian systems of medicine, use medicinal plants in preventive, promotive and curative applications Medicinal plants are potential renewable natural resources Several medicinal plants have been assessed as endangered, vulnerable and threatened due to over harvesting in the wild While the demand for medicinal plants is increasing, their survival in their natural habitats is under growing threat
  • 5. MAJOR CAUSES OF MEDICINAL PLANTS DEPLETION  Non - sustainable, destructive, high density harvesting by plant collectors  Declination in traditional knowledge of local communities regarding use of medicinal plants  Over harvesting of the material due to low income of collectors & low prices paid to them  Increased international demand for medicinal plants  Commercialization of medicinal plants & increased accessibility of traders to remote forest areas  Over deforestation Natural phenomenon ( Land slides, Forest fire, Global warming, Drought)
  • 6. SYSTEM - WISE USAGE OF MEDICINAL PLANTS System Approx. % Percentage Ayurveda 81.70 % Folk 67.97 % Homoeopathy 14.90 % Modern 06.38 % Siddha 56.72 % Tibetan 23.77 % Unani 52.29 % Ayuveda Folk Siddha Unani Tibettan Homoeopathy Modern 81.70% 67.97% 56.72% 52.29% 23.77%
  • 7. USAGE OF MEDICINAL PLANTS BY PARTS 0% 5% 10% 15% 20% 25% 30% 35% ROOT WHOLE PLANT FRUIT & SEED BARK LEAVES STEM FLOWER GUM OTHERS 32% 19% 18% 10% 8% 5% 5% 2% 1% Root Whole plant Fruit & Seed Bark Leaves Stem Flower Gum Others Series1 32% 19% 18% 10% 8% 5% 5% 2% 1% Series1 Source : FRLHT ,Trade data base , 2013
  • 8. IUCN (INTERNATIONAL UNION FOR CONERVATION OF NATURE SPECIES) has classified plant species into nine categories. Extinct Extinct in the wild (EW) Critically endangered(CR) Endangered (EN) Vulnerable(VU) Near threatened(NT) Least concern (LC) Data deficient (DD) Not evaluated (NE)
  • 9. RARE SPECIES: Species with small population restricted geographically with localized habitats. They are not in immediate danger of extinction e.g. Saraca indica ( Asoka ) VULNERABLE: Species are under threat of or actually declining in number. e.g. Aegle marmelos ( Vilwa ) Baliospermum montanum (Danti ) ENDANGERED: Species with low population number that are in considerable danger of becoming extinct e.g. Bacopa monnieri ( Brahmi ) CRITICALLY ENDANGERED: when a species is facing an extremely high risk of extinction in wild in the immediate future e.g. Inula racemosa ( Puskaramoolam ) EXTINCT: Species which cannot be found in areas where they recently been inhabited e.g. Drosera indica, Aerva wightii, Asparagus rottleri, Madhuca insignis
  • 10. Plant diversity in India IUCN threat status of Indian Medicinal plants
  • 11. Important medicinal plants of India, their uses and conservation status Species Common Name Medicinal Uses Habitat Cause of extinction Red List Category Conservation strategies Acorus calamus Vacha Root - Memory loss,anxiety,Men tal fatigue, Sinusitis Grows on the margins of standing or slow-flowing water No information is available on threats to the species or its habitats Least concern No conservation measures have been undertaken specifically for this species Adhatoda beddomei Vasa Root, leaves and flowers of vasa is used in the form of juice & decoction to treat fever,cough,asth ma,skin diseases Travancore hills of South western ghats,Akkamalai ( Coimbatore Dist), Mahendragiri(K anniyakumari Dist) No information Available Critically endangered Conservation status unknown Boerhaavia diffusa Punarnava Root - Diuretic,laxative ,anemia,expecto rant used in asthma,bronchiti s Perennial creeping herb found throughout the waste land of india No information Available Not accessed Conserved at several MPCAs
  • 12. Picrorhiza kurrooa Katuki Roots are used in stomach pain, fever and dyspepsia Distributed in Himalayas from Kashmir to Sikkim at an elevation of 2,700-4,500m No information available Endangered Conservation status unknown Piper longum Pippali Roots & Fruits are used in cough,fever,cold carminative Lowland tropical rainforest Habitat loss Endangered Conservation status unknown Rouwolfia serpentina Sarpagandha Roots - reduce high blood pressure & hyper tension Growing in abundance in shade of dense vegetation Habitat destruction Extinct in wild* Conservation status unknown Withania somnifera Ashwagandha Roots - effective in painful swellings,feverT he whole plant is used in leucorrhoea in females & impotence in males Alluvial soil rich in humus and nitrogen with pH ranging between 6 - 8 Over exploitation for preparation of medicines on large scale Extinct in wild* Conservation status unknown
  • 13. In situ conservation Ex situ conservation Propagation, Domestication Crop variety breeding Reduction of anthropogenic pressure & Rehabilitation of endangered species Medicinal Plant Conservation Strategies
  • 14. Conservation at the site of their occurrence Achieved through establishment of a number of MPCAs in biogeographic zones of India in co-operation with the State Forest Depts. It includes - Biosphere reserves, national parks, sacred sites, Sacred grooves etc Most medicinal plants are endemic species, and their medicinal properties are mainly because of the presence of secondary metabolites that respond to stimuli in natural environments, and that may not be expressed under culture conditions. In-situ Conservation
  • 15. Ex-situ Conservation Conservation is done outside of the natural habitat Achieved by , Raising nurseries Seedling supply Plantation material By establishing Botanical garden, Medicinal plant garden Seed banks In-vitro methods like tissue culture
  • 16. SUSTAINABLE USE For Sustainable utilization of medicinal plants, the Departments/Institutions/Agencies must be identified for preparation of document on various aspects of cultivation & conservation covering availability of planting material, agro-practices, protocol, status of technology, ex-situ & in-situ conservation etc.. Various issues to be addressed for sustainable utilization of Medicinal plants are,  Identify the medicinally important species & study their biology  Identify the therapeutically important ingredients and set up pharmaceutical industry
  • 17.  Develop scope for their commercial exploitation  Set up artificial propagation methods to fulfill the demand  Maintain the germplasm through conserving the species in-situ & ex- situ
  • 18. DISCUSSION Harvesting of medicinal plants is less costly than artificial drug synthesis. Reserpine is a good example of this. The synthesis of the drug costs approximately $ 1.25/g ; whereas commercial extraction from the plant cost $ 0.75/g Heavy demand of some of the plants has threatened some species and put them to the level of extinction.70 % of plant collections involve destructive harvesting because of use of parts like roots, barks, stems & whole plant There are no regular developmental programmes in the forestry & agriculture sector to promote regeneration and revival of endangered species
  • 19. WHAT CAN WE DO?  Awareness of new species varieties  Educate the drug collectors  Substitution of plant or with other parts of plant  Programmes to promote a herbal garden in & around public places like schools, road side, worship places of all religions  Facilitate link between farmers and manufacturers  Conserve the existing forest  Reduce dependence on wild for collection of drugs  Biodiversity areas must be identified and conserved
  • 20. CONCLUSION A large number of Medicinal plant species in India are threatened Over exploitation & habitat destruction are the most serious proximate threats to Medicinal plants. Hence in-situ conservation alone can not be successful in conservation, other ex-situ methods need to be employed Traditional knowledge can also play important role in medicinal plant conservation Strategies need to be developed for conserving the available biodiversity, so that the natural wealth is preserved and multiplied to be used for the benefit of humankind and the future generations. It needs only a sincere effort and the mother nature will reward us with abundance
  • 21. “ Dasa Kupa samo Vapi - Dasa Vapi samo Hridah / Dasa Hrida samo Putrah - Dasa Putra samo Drumah // ” - Vriksha Ayurveda 10 Wells = 1 Tank 10 Tanks = 1 Lake 10 Lakes = 1 Child 10 Children = 1 Plant  Vriksha Ayurveda ( A Component of Agnipurana ) - One of the oldest epics of India  A dedicated text on Agricultural Science signifies the Conservation of Plants & utmost importance has been attributed to Plantation - equating ten human lives with a single plant
  • 22. STEPPING STONE TO SUCCESS … Amrita School of Ayurveda