Pharmacognostical and Physico-Chemical Standardization of Shatavari
Churna: An Official Ayurvedic Formulation.
Pathak A.V.1*,
Kawtikwar P. S.2, Sakarkar D. M.2
1Priyadarshini
J L Chaturvedi College of Pharmacy, 846, New Nandanwan, Nagpur-08
2Shri
Sudhakarrao Naik Institute of Pharmacy, Pusad-445204, Dist Yavatmal.
*Corresponding Author E-mail: a.pathak4@gmail.com
ABSTRACT:
There
is increasing awareness and general acceptability for the use of herbal drug in
today’s medical practice. Standardization is very much important for
establishment of consistency in chemical profile and biological activity for
production of herbal formulation. Newer guidelines for standardization,
manufacture, quality control and scientifically rigorous research is essential
for traditional treatments for its global acceptance. Standardization of herbal
formulation is essential in order to assess the quality, purity, Safety and
efficacy of drug which is based on amount of their active constituents. In
Ayurveda Asparagus racemosus
(Liliaceae) is traditionally known as Shatavari which is considered as female
tonic and official in Ayurvedic pharmacopoeia as Shatavari Churna. Two marketed
formulations and one in-house, laboratory formulation is used for the study.
All the formulations were standardized on the basis of organoleptic,
microscopical, physical characteristic and physico chemical properties. The
phytochemical study shows that the commercial formulation matches with the
authentic standards as per WHO guidelines. The inference from this study can be
used as reference standard in further quality control researches.
KEYWORDS: Ayurvedic official formulation,
Shatavari churna, Phyto chemical standardization, WHO guidelines.
INTRODUCTION:
India
is rich heritage of traditional medicines. Ayurveda, Siddha, Unani, Homeopathy
and Naturopathy are various branches of medicines. According to WHO, about 70%
of world population extensively use traditional and alternative medicines for
the healthcare1. The development of these traditional systems of
medicines with the perspectives of safety, efficacy and quality will definitely
helps not only to preserve the traditional heritage but also to rationalize the
use of natural product in healthcare2. It is very important to
establish a system of standardization for every plant medicine in the market,
science the scope for variation in different batches of medicine is enormous.
Plant
material when used in bulk quantity may vary in its chemical content and therefore,
in its therapeutic effect according to different batches of collection with
respect to different geographical and environmental conditions. So as to assess
the uniformity in manufacture there is a need for ensuring the quality,
efficacy and standard of Ayurvedic formulations3. Quality assurance
of herbal product may be ensured by proper quality control of herbal
ingredients and by means of good manufacturing practice4. As per
American Herbal Product Association “standardization refers to the body of information
and control necessary to product material of reasonable consistency”5.
Shatavari means “who
possesses a hundred husbands or acceptable to many”. It is considered as
general tonic and female reproductive tonic. In Ayurveda it is known as “Queens
of Herb” as it promote love and devotion6. Asparagus racemosus is an important medicinal plant of tropical and
subtropical India. Its medicinal usage has been reported in the Indian and
British Pharmacopoeia and in indigenous systems of medicine. Amongst 22 species
reported in India, Asparagus racemosus
is one of the most commonly used species in Traditional medicine7.
Scientific classification of Shatavari
Kingdom:
Plantae
Division:
Magnoliophyta
Class:
Liliopsida
Order:
Asparagales
Family:
Asparagaceae, Liliaceae
Genus:
Asparagus
Species:
racemosus
Botanical name:
Asparagus racemosus Willd
Vernacular name:
A. racemosus
Willd. is commonly called Shatavari, Satawar or Satmuli in Hindi; Satavari in
Sanskrit; Shatamuli in Bengali; Shatavari or Shatmuli in Marathi; Satawari in
Gujarati; Toala-gaddalu or Pilli-gaddalu in Telegu; Shimaishadavari or Thanner
Vittan Kizhangu or Inli-chedi in Tamil; Chatavali in Malayalam; Majjigegadde or
Aheruballi in Kannada; Kairuwa in Kumaon; Narbodh or Satmooli in Madhya Pradesh;
and Norkanto or Satawar in Rajasthan8.
Racemosus is a well known
Ayurvedic rasayana which prevent ageing, increase longevity, impart immunity,
improve mental function, vigor and add vitality to the body and it is also used
in nervous disorders, dyspepsia, tumors, inflammation, neuropathy, hepatopathy.
Reports indicate that the pharmacological activities of A. racemosus root
extract include antiulcer, antioxidant, and antidiarrhoeal, antidiabetic and
immunomodulatory activities. A study of ancient classical Ayurvedic literature
claimed several therapeutic attributes for the root of A. racemosus and has been specially recommended in cases of
threatened abortion and as a galactogogue. Root of A. racemosus has been referred as bitter-sweet, emollient, cooling,
nervine tonic, constipating, galactogogue, and aphrodisiac, diuretic,
rejuvenating, carminative, stomachic, antiseptic and as tonic. Beneficial
effects of the root of A. racemosus
are suggested in nervous disorders, dyspepsia, diarrhoea, dysentery, tumors,
inflammations, hyper dipsia, neuropathy, hepatopathy, cough, bronchitis,
hyperacidity and certain infectious diseases9,10. The root extract
of Asparagus racemosus has also been
traditionally used in Ayurveda to increase milk secretion during lactation. The
aqueous extract of roots increased the weight of mammary glands in post partum
and estrogen-primed rats and the uterine weight in the estrogen-primed group11.
MATERIAL AND METHODS:
Plant material:
Raw
material i.e. Shatavari roots were collected from Herbal Garden of
Priyadarshini J L Chaturvedi College of Pharmacy, 846, New Nandanwan, Nagpur,
Maharashtra and was authenticated by Dr.
Mrs. Chaturvedi, Professor and Head of Department, Department of Botany,
Rashtra Sant Tukdoji Maharaj, Nagpur University, Nagpur. Herbarium is deposited
in the Department on 24-03-2013 with number as 9900.
The
collected roots were washed and cut into small pieces and dried for 17 days in
shade followed by drying in hot air oven for about 5-6 hrs. Dried roots were powdered
and passed through mesh 16.
Formulation Profile:
Formulation 1 (Marketed):
It
is in powdered form, purchased from local market in Nagpur. Coded as SCM-I.
Formulation 2 (Marketed):
It
is in powdered form, purchased from local market in Nagpur. Coded as SCM-II.
Formulation 3 (Laboratory):
It
is in powdered form, prepared in Laboratory of Natural Product, Sudhakarrao
Naik, Institute of Pharmacy, Pusad, and Coded as SCL . The raw material (Shatavari root) used for preparation was
collected from the Herbal Garden and was authenticated by Department of Botany,
Rashtra Sant Tukdoji Maharaj, Nagpur University, Nagpur. The Formulation of
Shatavari Churna was prepared as per The Ayurvedic Formulary of India12.
The powders should completely pass through 355 μm I. S. sieve (sieve
number 44) and not less than 50 per cent pass through 180 μm I. S. sieve
(sieve number 85).
METHODS:
Organoleptic study:
The
development of organoleptic character i.e. sensory character provides simplest and quickest means
to establish the identity, purity and quality of crude drug in terms of color,
odour and taste. The Marketed formulation and In-house formulation were
examined for color, odour and taste along with individual ingredient. For
determination of color examine the untreated sample under diffuse day light, if
required artificial light source with wavelength similar to those of day light.
For determination of odour place the small quantity of material in palm of the
hand or a beaker of suitable size, slowly and repeatedly inhale the air over
the material. If required crush the material between thumb and index finger.
For determination of taste if specifically required should be done by placing
minimum quantity of material (crushed/powdered) on taste buds of tongue. Interval
of 15 minutes between two samples was kept to make available the taste buds
fresh every time.13
Microscopically study:
Microscopic
identity of medicinal plant material is indispensable for the identification of
broken of powdered materials. Examinations with microscopy along with other
analytical methods supply invaluable supporting evidence. The powder material
of SCM-I, SCM-II, SCL and section of root of Shatavari is microscopically
analyzed. For powder material, place 2 drops of water, glycerol or ethanol on a
glass slide. Moisten the tip of needle with water and dip into the powder.
Transfers the quantity of material adheres to the tip of needle into the drop
of fluid on the slide and apply the cover slip carefully. Section preparation
of dried crude drug i.e. Shatavari root, the drug material is soaked in water
or in equal parts of water, ethanol and glycerol for overnight so as to make it
soft enough or can be boiled in water for few minutes. Prepare transverse
section by cutting with razor blade or microtome at a right angle to the
longitudinal axis of the material. Prepare longitudinal section by cutting in
parallel with the longitudinal axis, either in radial direction (radial
section) or in a tangential direction (tangential section) For detection of various parameters use
various micro-chemical reagents such as Iodine, Phloroglucinol, Sudan red,
acetic acid, potassium hydroxide, Chinese ink, 1-napthol, sulphuric acid,
ferric chloride, etc.14.
Physical Characteristic:
The
development of physical character provides simplest and quickest means to
establish the identity, purity and quality of crude drug in terms of Bulk
density, Tap density, Angle of repose, Hausner ratio, Carr’s index, etc,. The
Marketed formulation and In-house formulation were examined for development of
various physical characteristic along with individual ingredient.
Bulk density (ρB):
It
is defined as the mass of a powder divided by the bulk volume. It was being
determined by Fixed funnel method. A sample of 50 cm3 of powder that
has been passed through sieve no. 20 is carefully introduced into a 100 ml
graduated cylinder. The cylinder is dropped at 2 sec intervals on hard wooden
surface three times from a height of 1 inch. The bulk density is obtained by
dividing the weight of the sample in gm by the final volume in cm3
of the sample contained in the cylinder15.
Tap density (ρT):
It
is defined as the mass of the powder divided by the tapped volume. A powder
sample about 5.0g is transferred into the tarred 10 ml cylinder with the help
of a funnel. The 250 ml measuring cylinder is placed on the tapping apparatus.
The content is tapped and the volume occupied is recorded. The ratio of mass of
powder to the tapped volume represents Tapped density16.
Angle of repose (θ):
A
glass funnel is held in place with a clamp on ring support over a glass plate.
The glass plate is placed on a micro-lab jack. Approximately 100g of powder is
transferred in to the funnel which has been passed through number 10 size mesh,
keeping the orifice of funnel blocked by the thumb. The lab-jack is so adjusted
so that the gap of about 6-7 mm is maintained between top of powder pile and
bottom of funnel stem. When the powder is emptied from the funnel, the angle of
heap to the horizontal plane is measured with a protector. Measure the height
of the pile (h) and the radius of the base (r) with the ruler. The angle of
repose is thus estimated by the formula.
θ = tan-1 ( h
/ r )
Hausner ratio:
The
Hausner ratio is the ratio of Tap density divided by Bulk density, it is named
after the engineer Henry H. Hausner, A Hausner ratio greater than 1.25 is
considered to be an indication of poor flowability. It is calculated by the
formula17.
H = ρT
/ ρB
Carr’s index:
The
Carr index represents the flowability and compressibility of powder. It is
named after the pharmacologist Charles Jelleff Carr (1910–2005). It measures
the relative significance of interparticle interactions. A Carr index greater
than 25 is considered to be an indication of poor flowability, and below 15, of
good flowability. It is calculated by the formula17.
OR
Physico- chemical Study:
The
activity of any herb is dependent on the class of phytoconstituents or specific
phytoconstituents being present in it. In majority, of the herbals which are in
use the knowledge about these is fairly known. Therefore, it is necessary to
devise a method of standardization based upon the presence of these chemicals.
Physico-chemical constants like ash value, water soluble extracts, alcoholic
extracts, loss on drying and pH values were determined of all the formulations
and dried crude drug as per method described in The Ayurvedic Pharmacopoeia of
India18.
Determination of Ash Value:
The
total ash method is designed to measure the total amount of material remaining
after ignition, including physiological and non-physiological ash. Acid
insoluble ash is a parameter obtained after boiling the ash with dilute
hydrochloric acid19.
Determination of Extractives:
The
percent extractive values were determined in water and alcohol. The extractive
values were determined for all the Formulations SCM-I, SCM-II, SCL and dried
crude drug19.
Determination of Foreign matter:
500
g of the drug sample was examined by spread it out in a thin layer. The foreign
matter was detected by inspection with the unaided eye or by the use of a lens
(6x). Separated and weighed the foreign matters and calculate the percentage of
foreign matter present20.
Determination of Moisture content:
LOD of the powdered drug
was carried out to find out the percentage of moisture present in the drug
since moisture facilitates the enzyme hydrolysis or growth of microbes lead to
deterioration. 10 g of sample (without preliminary drying) were placed after
accurately weighing it in a tarred evaporating dish. After placing the above
said amount of the sample in the tarred evaporating dish dry at 105oC
and continue the drying and weighing at 10 minutes interval until difference
between two successive weightings corresponds to not more than 0.25 per cent.
Constant weight is reached when two consecutive weightings after drying for 30
minutes and cooling for 30 minutes in a desiccators, show not more than 0.01 g
difference21. Finally moisture content was measured directly in
percentage.
Determination of pH:
The pH of different
formulations in 1% w/v and 10% w/v of water soluble portions were determined
using pH paper (Range 3.5–6) and (6.5–14) with standard glass electrode22.
Determination of Crude fiber:
2 gm of drug was taken in a
beaker and 50ml of 10% nitric acid was added. It was heated to boil with
stirring (30 sec.).This was strained through fine cloth on a buchner funnel.
The residue was washed with boiling water and transferred to a beaker. 50ml of
2.5% v/v sodium hydroxide solution was added. It was strained and washed with
hot water. The residue was transferred in a clean and dried crucible. The
residue was weighed and the crude fiber content was determined23.
Qualitative photochemical studies:
The
detection of presence of various phytoconstituents in the formulations and in
dried crude drug is performed on the various extracts of all the formulation
along with crude drug. The qualitative analysis of alkaloid, carbohydrate,
tannins, Saponins, phenols, phytosterol, oils, fat, gum, mucilage, etc., was
done24.
RESULT AND
DISCUSSION:
Organoleptic study:
All
the formulations of Shatavari churna were evaluated as per WHO guidelines. The
sensory and organoleptic study reveals that the formulations were grayish white
in color, having characteristic odour and sweet in taste. (Table No. 1)
Table No. 1: Organoleptic
Study
Sr. No. |
Name |
Color |
Odour |
Taste |
1 |
SCM-I |
Grayish White |
Characteristic |
Sweet |
2 |
SCM-II |
Grayish White |
Characteristic |
Sweet |
3 |
SCL |
Grayish White |
Characteristic |
Sweet |
4 |
CRUDE DRUG |
Creamish white |
characteristic |
sweet |
Microscopically study:
The
microscopical studies of all the formulation along with dried crude drug were
done as per standards given by WHO in Quality Control Methods for Medicinal
Plants Materials. The study revealed the authenticity of the crude drug. The
transverse section of Shatavari roots shows the outermost layer is the 6-8
layered cortex having outer cells collenchymatous and inner cells
parenchymatous, some of which may be pitted, wavy-walled, overlapping and may
have mucilage content. Endodermis is 1-2 layered, lignified, pitted and
continuous. Pericycle is 1-2 layered and consists of thin walled parenchymatous
cells. Vascular bundles are radial, a characteristic of monocot root. Pith
consists of pitted, lignified or non-lignified cells having intercellular
spaces. The microscopic features of all the powders are very similar and show
the presence of pericyclic fibers, prismatic and acicular calcium oxalate
crystals (isolated or in bundles); pitted, annular and reticulate-thickened
xylem vessels. (Figure 1and 2
illustrates the details)
Figure 1: Transverse Section of Asparagus racemosus wild. (A) Epidermis,
(B) Cortex, (C) Endodermis, (D) Pericycle, (E) Xylem vessels, (F) Phloem, (G) Pith
Figure 2: I to
VI Microscopic features of powdered crude drug.
Physical Characteristic:
The
Physical characteristic includes the development of various quality control
parameters such as Bulk density, Tap density, Angle of Repose, Hausner ratio,
Carr index. The Bulk density of the powder mainly depends upon the particle size
distribution, shape and cohesiveness of the particle. The bulk density of
SCM-I, SCM-II, SCL and of Crude drug were observed as 0.4346, 0.4758, 0.4135
and 0.4198 respectively. When particles are loosely packed, lots of gap between
the particles makes the powder light there by increasing the bulk volume. The
tapped density of the SCM-I, SCM-II, SCL and of Crude drug were observed as
0.5420, 0.5730, 0.5225 and 0.5190 respectively. The angle of repose is
inversely proportional to the flow properties. Lower the angle of repose,
better the flow property. The particle
passed through 100 mesh results in increase of angle of repose. The Angle of
repose less than 35 shows excellent flow properties. Hausner ratio of SCM-I, SCM-II,
SCL and of Crude drug were observed as 1.2471, 1.2042, 1.2636 and 1.2363
respectively. Carr index also known as consolidated Carr index of SCM-I,
SCM-II, SCL and of Crude drug were observed as 19.8154, 16.9633, 20.7619 and
19.11 respectively. (Table No. 2).
Physico- Chemical Study:
Total
Ash value represents the inorganic salts adhere and or present within the drug
material. The Total Ash value of the SCM-I, SCM-II, SCL and of Crude drug were
observed as 4, 4.5, 4.7 and 3.9 respectively. The Acid insoluble Ash represents
the amount of Ash insoluble in Dilute Hydrochloric acid. The Acid Insoluble Ash
of the SCM-I, SCM-II, SCL and of Crude drug were observed as 0.5, 0.6, 0.5 and
0.4 respectively. The water soluble extractives represent the water soluble
constituents present in the sample. The water soluble extractive of the SCM-I,
SCM-II, SCL and of Crude drug were observed as 33.5, 34.0, 35.0 and 34.5
respectively. The Alcohol soluble extractives represent the Alcohol soluble
constituents present within the sample. The Alcohol soluble extractives of the
SCM-I, SCM-II, SCL and of Crude drug were observed as 6.5, 7.0, 6.9 and 7.0
respectively. Foreign organic matter of the SCM-I, SCM-II, SCL and of Crude
drug were observed as NIL in all the samples. Moisture content of the SCM-I,
SCM-II, SCL and of Crude drug were observed as 10.0, 9.5, 8.0 and 8.2
respectively. pH of the 1% solution w/v and 10% solution w/v of the SCM-I,
SCM-II, SCL and of Crude drug were observed as 5.1:5.3; 5.1:5.3; 5.3:5.5 and
5.3:5.5 respectively. Crude fibre content of the SCM-I, SCM-II, SCL and of
Crude drug were observed as 17.93, 18.23, 19.45 and 19.25 respectively. (Table
No. 3).
Qualitative phytochemical studies:
The
Qualitative phyto-chemical study reveals the range of active constituents
present in the drug sample. The extracts were evaluated for with various
reagents to detect the presence of various phyto-chemicals. (Table no.4.
Table no. 3:
Physico- Chemical Study
Sr. No. |
Parameter |
SCM-I |
SCM-II |
SCL |
CRUDE DRUG |
|
1 |
Total Ash [Mean (n=3) ±
SD] |
4±0.54 |
4.5±0.47 |
4.7±0.34 |
3.9±0.56 |
|
2 |
Acid insoluble Ash[Mean
(n=3) ± SD] |
0.5±0.12 |
0.6±0.09 |
0.5±0.11 |
0.4±0.15 |
|
3 |
Water soluble extractive
[Mean (n=3) ± SD] |
33.5±1.57 |
34.0±1.53 |
35±1.14 |
34.5±1.37 |
|
4 |
Alcohol soluble extractive
[Mean (n=3) ± SD] |
6.5±1.2 |
7.0±1.1 |
6.9±0.9 |
7.0±1.0 |
|
5 |
Foreign matter [Mean (n=3)
± SD] |
NIL |
NIL |
NIL |
1.21±.08 |
|
6 |
Moisture content [Mean
(n=3) ± SD] |
10±0.25 |
9.5±0.32 |
8.0±0.18 |
8.2±0.35 |
|
7 |
pH |
1% w/v [Mean (n=3) ± SD] |
5.1±0.01 |
5.1±0.12 |
5.3±0.11 |
5.3±0.15 |
10% w/v [Mean (n=3) ± SD] |
5.3±0.02 |
5.3±0.10 |
5.5±0.12 |
5.5±0.14 |
||
8 |
Crude fiber [Mean (n=3) ±
SD] |
17.93±0.95 |
18.23±1.05 |
19.45±0.95 |
19.25±0.99 |
Table no. 4:
Qualitative phytochemical studies
Sr. No. |
Phytochemical |
SCM-I |
SCM-II |
SCL |
CRUDE DRUG |
1 |
Alkaloid |
- |
- |
- |
- |
2 |
Glycoside |
+ |
+ |
+ |
+ |
3 |
Carbohydrate |
+ |
+ |
+ |
+ |
4 |
Gum and Mucilage |
+ |
+ |
+ |
+ |
5 |
Tannin |
+ |
+ |
+ |
+ |
6 |
Saponin |
+ |
+ |
+ |
+ |
7 |
Phytosterol |
+ |
+ |
+ |
+ |
8 |
Fat |
- |
- |
- |
- |
CONCLUSION:
As
per the Ayurvedic Pharmacopoeia of India all the formulations i.e. SCM-I,
SCM-II, SCL and Crude drug were standardized. The identity, purity and quality
of the formulations were done and all the formulations were
found
of good quality and purity. All the physico-chemical values were as per the
standards given in The Ayurvedic Pharmacopoeia of India.
REFERENCE:
1.
Patra K C., et.al., “Traditional approaches towards Standardization of
Herbal Medicines- A review”. Journal of Pharmaceutical Sciences and Technology.
2010;2(11):372-379.
2.
Mukherjee P K., et.al., “Ethnopharmacology and Integrative medicine –
Let the history tell the future” Journal of Ayurveda and Integrative medicines.
2010 Apr-Jun; 1(2): 100–109.
3.
Agarwal S. and Singh R. H. Proceedings of International Congress,
Ayurveda, 28–30th January 2002, Abstract No. 209: 221: 2002
4.
Govind D., Bhaishajya Ratnavali; p. 461, Motilal Banarasidas Publishers,
New Delhi; 2002.
5.
Waldesch F G., et.al., Herbal medicinal products- Scientific and
regulatory basis for development quality assurance and marketing authorization,
published by med pharm stuttagart and CRC press, Washington D C. 2003; 37-52.
6.
Gogte V. M., Ayurvedic Pharmacology and therapeutic uses of Medicinal
Plants. Mumbai: SPARC; 2000.
8.
Thomson M. (2002) Herbal Monograph – Asparagus racemosus, Phytomedicine, NSW, Australia.
http://www.phytomedicine. com.au/files/articles/shatavari.pdf, 2002
9.
Sharma P. V., Charaka S., Chaukhambha
orientalis. Varanasi: India; 2001, p. 7-14.
10. Sairam K. S., et.al.,
Gastroduodenal ulcer protective activity of Asparagus
racemosus. An experimental, biochemical and histological study. J
Ethnopharmacol 2003; 86(1): 1-10.
11.
Sabnis, P.B., et.al., Effects of alcoholic extract of Asparagus racemosus on mammary glands of
rats. Indian Journal of Experimental Biology, 1968, 6: 55 – 57.
12.
Anonymous, The Ayurvedic Pharmacopoeia of India, Part I Volume IV,
First Edition 2004, Page no 108-109.
13. Wallis T E, Text Book of
Pharmacognosy.5th Edition, London; J A Churchill Ltd; 1967:6
14. World Health Organization
(WHO), Quality Control Methods for Medicinal Plants Materials, Geneva 1988:
Chapter 5; 1-115.
15. Sinko P J. Martin’s Physical
Pharmacy and Pharmaceutical Sciences. 5th Indian. B I Publication Pvt. Ltd.
2006: 555. Edition
16. Subramanyam C.V.S., Text Book
of Physical Pharmacy, Second Edition, Reprint 2010, Micromeritics, 180-230.
17. Gibson M., Pharmaceutical
Preformulation and Formulation. A practical Guide from Candidate Drug Selection
to commercial Dosage form. Boca Raton: CRC press. ISBN 1-57491-120-1.
18. Government of India, Ministry
of health and Family Welfare, Department of I.S.M. and H. Anonymous, The
Ayurvedic Pharmacopoeia of India. 1st Edition, New Delhi: 1999, Part I Volume –
IV.
19. World Health Organization
(WHO), Quality Control Methods for Medicinal Plants Materials, Geneva
1988:1-115.
20. Iyengar MA:
Pharmacognosy of powdered crude Drugs. Manipal Power Press, Manipal, First
Edition. 1980: 1-4
21. Kaymak H C.,
et.al., “Elemental analysis of different Radish (Raphanus sativus L.) cultivars by using wavelength-dispersive X-ray
fluorescence spectrometry.” Bulgarian Journal of Agricultural Science 2010,
16(6): 769-777.
22. Mohapatra P., et.al., “Standardization of a polyherbal
formulation”, Pharmacognosy Magazine, 2008, V-4 I -13 , 65-69.
23. PK Mukherjee. Quality Control
of Herbal drugs, 1st Edition, Business horizon, New Delhi, 2002; 187–195; 356.
24. Kokate C K., Practical
Pharmacognosy, New Delhi: Vallabh Prakashan; 1994:107-113.
Received on 24.08.2015
Modified on 16.09.2015
Accepted on 24.09.2015 © RJPT All right reserved
Research J. Pharm. and Tech. 8(11): Nov., 2015; Page
1495-1501
DOI: 10.5958/0974-360X.2015.00267.X